Title: The Mazatrol 640M Maintenance Manual: An Exclusive Analysis of Procedural Integrity and System Longevity
Introduction
In the realm of computer numerical control (CNC) machining, the Mazak Mazatrol 640M control system represents a pivotal era in manufacturing technology. Bridging the gap between dedicated proprietary hardware and modern PC-based architectures, the 640M (often associated with the Fusion 640 series) remains a workhorse in shops globally. However, the longevity of these systems relies not on the robustness of their construction alone, but on the rigorous application of their maintenance protocols. This essay explores the "exclusive" nature of the Mazatrol 640M maintenance manual—not merely as a restricted document, but as a critical, self-contained ecosystem of technical knowledge essential for the preservation of high-precision industrial assets.
The Architecture of Exclusivity
To understand the importance of the maintenance manual, one must first understand the architecture of the 640M. Unlike modern "open-architecture" controls that run on standard Windows operating systems, the 640M utilizes a proprietary system backbone. The manual is deemed "exclusive" because it serves as the only definitive map of this proprietary landscape. It contains logic diagrams, parameter lists, and ladder sequences that are not intuitive to technicians trained solely on generic Fanuc or Siemens platforms.
The exclusivity extends to the hardware integration. The 640M system tightly couples the CNC, the PLC (Programmable Logic Controller), and the servo drives. The maintenance manual provides the specific "servo tuning" parameters and backlash compensation charts that are unique to the Mazak mechanical assembly. Without access to these exclusive specifications, a maintenance technician is essentially operating blind, unable to synchronize the electronic command with the mechanical reality of the machine.
Navigating the Parameters and Diagnostics
A central pillar of the 640M maintenance manual is its exhaustive treatment of parameters. In the CNC world, parameters are the DNA of the machine; they dictate everything from the rapid traverse speed to the specific tool change logic. The manual details "User Parameters" (which operators may adjust) and "Machine Parameters" (which are typically locked and critical to machine geometry).
The manual’s diagnostic section is equally vital. It decodes the binary signals of the PMC (Programmable Machine Controller). For instance, if a machine refuses to shift gears, the manual guides the technician through a specific diagnostic address (D-gn or X/Y addresses) to check the status of proximity switches and solenoids. This exclusive knowledge allows for the isolation of faults—distinguishing between a mechanical jam, a failed sensor, or a broken wire—thereby minimizing costly downtime.
Preventive Maintenance Protocols: The Predictive Approach
Beyond troubleshooting, the 640M manual outlines a strict regimen of preventive maintenance. This section is often undervalued until a catastrophic failure occurs. The manual specifies the "exclusive" lubrication schedules for the box ways and ball screws, which differ from earlier Mazak models. It details the specific viscosity requirements for hydraulic and way oils, warning that deviations can cause "stick-slip" vibration that ruins surface finish.
Furthermore, the manual provides critical timelines for the replacement of consumable components, such as the memory backup batteries and spindle drive cooling fans. In the context of the 640M, which relies on volatile memory for data retention, the procedure for battery replacement described in the manual is sacrosanct. A failure to follow the "power-on" replacement procedure exactly as written can result in the total loss of the machine's operating system and part programs—a potentially devastating financial loss.
The Art of Ladder Logic and Customization
Perhaps the most technically dense and "exclusive" section of the manual covers the PMC Ladder Logic. Mazak machines are known for their user-friendly Mazatrol conversational programming, but the underlying logic is complex. The maintenance manual includes the ladder diagrams that control the auxiliary functions—coolant, chip conveyors, and clamping systems.
For maintenance personnel, this section is the key to customization. If a shop retrofits a fourth-axis rotary table or installs a custom part loader, the manual provides the instruction set for modifying the ladder logic. This elevates the manual from a repair guide to an engineering tool, allowing the machine to evolve with the shop’s needs.
Challenges of Obsolescence and Data Preservation
In the current industrial climate, the "exclusivity" of the Mazatrol 640M manual takes on a new meaning: preservation. As physical copies of these manuals degrade or are lost, and as Mazak moves toward newer control systems (like the Smooth series), the specific knowledge contained within the 640M manual becomes rare.
The manual also addresses the nuances of data backup—specifically the use of SRAM cards and cassette tapes common to that era. Modern maintenance strategies require translating these manual instructions into contemporary terms, utilizing PCMCIA slots or serial transfers to secure machine data. The technician who masters the data backup procedures outlined in the manual effectively safeguards the machine against the obsolescence of its hardware components.
Conclusion
The Mazatrol 640M Maintenance Manual is far more than a collection of schematics; it is the definitive authority on the operation, diagnosis, and preservation of a complex mechatronic system. Its "exclusive" nature stems from the specificity of its data—parameter addresses, servo tuning constants, and ladder logic flows that cannot be guessed or generalized. For the modern machine shop, possession and understanding of this manual are not merely administrative details; they are competitive advantages. By adhering to its protocols, maintenance personnel ensure that these robust machines continue to deliver the precision for which they were designed, proving that even in an age of rapid technological turnover, dedicated technical documentation remains the foundation of industrial reliability.
The manual is designed for technicians and CNC operators, focusing on the hardware and software health of the 640M controller. It transitions from basic daily inspections to advanced system-level repairs. Key Strengths & Features
Comprehensive Troubleshooting: It includes detailed alarm lists that categorize error codes, providing specific "Cause" and "Remedy" steps essential for reducing machine downtime.
System-Level Operations: The manual provides rare "how-to" instructions for critical back-end tasks, such as unlocking password-protected screens, erasing memory (SRAM clear), and updating system software.
Hardware Maintenance: It contains step-by-step procedures for replacing life-limited components, including the hard drive, control unit, LCD backlight, and system batteries.
Integration Details: For complex setups, it outlines the connection of I/O interfaces and remote I/O units, which is vital for electrical maintenance and expanding machine capabilities. User Utility & Experience
Safety-First Approach: Users note that the manual is heavily structured around safety precautions, with clear "DANGER" and "CAUTION" markers regarding machine movement and coordinate system verification.
Technical Density: While highly accurate, the manual is technical; it assumes a baseline understanding of CNC architecture. Beginners may find the parameter tables and cable drawings (Appendix 2) challenging without prior training.
Diagnostic Tools: The guide's explanation of diagnostic screens is frequently cited by professionals as its most valuable "exclusive" feature for identifying internal PC-side issues. Critical Maintenance Coverage Included Procedures Data Protection
Backing up saved data, registering/reading parameters from EEROM. Daily Upkeep
Cleaning the keyboard/escutcheon and floppy disk drive head. System Tuning Setting calendars, timers, and modifying system parameters. Hardware Replacement of the NC data key and menu keys.
Final Verdict: The Mazatrol 640M Maintenance Manual is an essential asset for any shop running Fusion 640M machines. It provides the "keys to the kingdom" for deep-level system recovery and hardware longevity that are not typically found in standard operating guides. Mazatrol Fusion 640M Maintenance Manual | PDF - Scribd
Maintaining a Mazatrol Fusion 640M control system involves balancing standard mechanical upkeep with critical electronic data protection. The primary maintenance document for this system is the
Mazatrol Fusion 640M Pro Connection and Maintenance Manual (BNP-B2303) Essential Maintenance Categories 1. Data Backup & System Recovery
The 640M is a PC-based control (Windows 95/NT), making hard drive and memory management vital. NC Data Backup
: Regularly back up parameters, tool data, and programs. If the system fails, you can use the Reloading Mazatrol Guide
to restore software from the "ncbackup" folder on the hard drive. Maintenance Backup (mnt_bkup.dat)
: This specific file is critical for restoring machine options and NC serial numbers. It should be updated during any major inspection. SRAM Clearing
: If the system hangs, a basic maintenance operation involves clearing the SRAM and re-initializing data. 2. Critical Battery Maintenance
Battery failure is the most common cause of parameter loss and "illegal parameter" alarms (Alarm 26). CNC Battery
: Located behind the rear cover, top left on the back of the screen. Relocation Detector (R.D.) Batteries
: Uses 2 Alkaline "D" batteries typically located in a dedicated box on the electric cabinet. Replacement Window : Once a "Low Battery" alarm appears, you generally have 30 minutes mazatrol 640m maintenance manual exclusive
to complete the replacement while power is off to avoid data loss. 3. Hardware Component Replacement Mazatrol 640M Maintenance Manual details procedures for: Replacing the Hard Disk Drive (HDD) or PC cards. Updating system software and adding functional options.
Cleaning or replacing fans in the control unit to prevent overheating. 4. Daily & Periodic Inspection Standard checks as outlined in the Operating Manual Reloading Mazatrol on Mazak M640 | PDF - Scribd
Finding the "exclusive" maintenance manual for the Mazatrol Fusion 640M typically involves accessing the official Mazak Connection and Maintenance Manual (often numbered BNP-B2303B or BNP-B2295). This manual provides specialized instructions for hardware replacement, software recovery, and deep-level system adjustments. Key Maintenance Procedures
The maintenance manual covers critical operations beyond daily checks:
Data Recovery & Backup: Instructions for creating a Maintenance Backup File and reloading software from the hard drive if the system fails to boot.
SRAM Initialization: Procedures for clearing the S-RAM using physical rotary switches (switching to position "7") to reset corrupted parameters.
Hardware Maintenance: Detailed steps for replacing the hard drive, control unit, and PC cards, as well as accessing diagnostic screens and unlocking passwords.
PLC Monitoring: Steps to access the Ladder Monitor to troubleshoot machine signals by stopping the PLC and entering specific codes like "1131". Essential Documentation
For a complete maintenance toolkit, ensure you have these specific documents:
Maintenance Manual (BNP-B2295/BNP-B2303B): Covers system configuration, installation, and deep troubleshooting.
Parameter List: Critical for verifying machine settings after a battery failure or data clear.
Alarm List: Defines error codes to pinpoint hardware or software faults.
Are you troubleshooting a specific error code or looking to perform a complete system backup? Mazatrol Fusion 640M Maintenance Manual | PDF - Scribd
Mastering the Mazatrol 640M: A Guide to the Maintenance Manual
Keeping your Mazak machine running at peak performance requires more than just operational knowledge—it demands a deep dive into the Mazatrol Fusion 640M Maintenance Manual
. This guide explores the "exclusive" technical procedures often buried in the manual that can save you from catastrophic downtime. 1. Essential Daily and Periodic Inspections
The manual outlines a rigorous schedule for daily and periodic maintenance to ensure longevity. These include:
Daily Checks: Inspecting the hydraulic pressure, cleaning the cooling fans, and verifying the spindle lubrication levels.
Cleaning Regimen: Removing metal chips from tool holders and cleaning coolant tanks to prevent bacterial buildup and overheating. 2. The "Hot" Battery Replacement Strategy
One of the most critical maintenance tasks is managing the system batteries. The 640M uses batteries to store volatile memory, including system parameters and tool data.
The Golden Rule: When a "Battery Low" warning appears, replace the batteries while the machine is powered on.
The Risk: If the battery dies while the power is off, you may lose all parameters, necessitating a grueling re-initialization process that can take hours or even days to recover.
Replacement Procedure: For specific modules like the machine relocation detector, the Mazak Battery Replacement Guide details quickly swapping cells to avoid "illegal parameter" alarms. 3. Advanced Diagnostic and Troubleshooting Procedures Mazatrol Fusion 640M Pro 640MT Pro Connection ... - Scribd
Mazatrol 640M Maintenance Manual: A Comprehensive Guide for Optimal Performance
The Mazatrol 640M is a high-performance CNC (Computer Numerical Control) machine designed for precision machining applications. To ensure optimal performance, reliability, and longevity, regular maintenance is crucial. In this exclusive article, we will provide an in-depth look at the Mazatrol 640M maintenance manual, covering essential procedures, tips, and best practices to help you keep your machine running smoothly.
Introduction
The Mazatrol 640M is a versatile machining center that offers advanced features, such as high-speed machining, precision contouring, and automatic tool changing. However, like any complex machine, it requires regular maintenance to prevent downtime, reduce wear and tear, and maintain accuracy. The maintenance manual is a vital resource that provides detailed instructions, schedules, and guidelines for maintaining your Mazatrol 640M.
Understanding the Maintenance Manual
The Mazatrol 640M maintenance manual is a comprehensive document that covers various aspects of maintenance, including:
Key Maintenance Procedures
Here are some critical maintenance procedures to focus on:
Tips and Best Practices
To get the most out of your Mazatrol 640M maintenance manual and ensure optimal performance:
Conclusion
The Mazatrol 640M maintenance manual is an essential resource for ensuring the optimal performance, reliability, and longevity of your CNC machine. By following the guidelines, procedures, and best practices outlined in this article, you'll be able to:
Invest in regular maintenance, and your Mazatrol 640M will continue to deliver high-quality results, meeting your production demands and driving business success.
Exclusive Access
As a valued reader, we are providing you with exclusive access to the Mazatrol 640M maintenance manual. To download your copy, please visit our website and follow the instructions.
Stay ahead of the curve with optimal maintenance practices. Get your copy of the Mazatrol 640M maintenance manual today!
The Mazatrol Fusion 640M is a high-performance CNC system that integrates a Windows-based PC with a specialized CNC control unit. Effective maintenance of this "Fusion" architecture requires a dual-pronged approach covering both physical machine components and critical digital data recovery procedures. Core Maintenance Procedures Title: The Mazatrol 640M Maintenance Manual: An Exclusive
Maintaining the Mazatrol 640M involves a blend of daily checks and deeper system-level interventions found in specialized maintenance manuals like the Mazatrol Fusion 640M Maintenance Manual. 1. Data Backup and Recovery
The 640M relies on a hard disk drive (HDD) and volatile SRAM memory. Frequent backups are essential to prevent data loss from battery failures or catastrophic power outages.
Parameter Backup: Users can back up parameters, PLC ladders, and tool data to the internal hard drive or an external virtual floppy/USB.
SRAM Clearing: If a catastrophic failure occurs (e.g., Alarm 26 "Illegal Parameter"), the SRAM must be cleared by setting the rotary switch on the CNC unit to "7" and cycling power.
Software Reloading: If system files are corrupted, the Mazatrol software can often be reinstalled from a backup folder (typically C:\ncbackup) on the hard drive. 2. Hardware Component Upkeep
The 640M Pro system consists of several key modules that require periodic inspection:
Control Unit: Houses the NC base card (FCU6-MA651), CPU card (HR161), and main memory cards.
Battery Maintenance: If a "Battery Low" warning appears, replace the CR2032 Lithium battery immediately to avoid losing parameters.
Hard Disk Drive (HDD): The HDD has a finite lifespan. It should be replaced proactively before failure.
Cooling Fans: Ensure the DC fan motor (MMF-06E12DH) is operational to prevent the controller from overheating. 3. Mechanical and Fluid Maintenance
Regular physical maintenance schedules are often managed through platforms like MaintainX:
Daily: Clean accumulated chips from the magazine and ATC cover. Check hydraulic, spindle cooling, and lubricating oil levels.
Periodic (1500 Hours/6 Months): Perform a full hydraulic oil change and clean the coolant tank, removing all sludge and debris from the bottom. Troubleshooting and Diagnostic Tools
The 640M provides internal tools to diagnose both software and hardware issues: Scribdhttps://www.scribd.com Mazatrol Fusion 640M Maintenance Manual | PDF - Scribd
The Mazatrol 640M Maintenance Manual Exclusive
Part One: The Ghost in the Iron
Arthur Pena had been a CNC maintenance technician for twenty-two years. He had outlasted three shop owners, two bankruptcies, and one fistfight over the last working Fanuc Robodrill. But the Mazatrol 640M control on the old Mazak Variaxis 630 had been his white whale for the last six months.
The machine was a beast—a five-axis, tombstone-ready mill with a spindle that could peel a half-inch of hardened steel off a block and laugh about it. But lately, it had been weeping.
Every Thursday at 3:47 PM, the 640M would throw an alarm: “397 P.S. – SERVO LAG EXCESS (Z-AXIS).” No crash. No tool break. Just a shudder, a digital sigh, and a shutdown. Reboot, re-home, and it worked perfectly until the next Thursday at 3:47 PM.
Arthur had done everything. He’d swapped the servo amp, replaced the encoder cable, even cleaned the resolver with a Q-tip and isopropyl alcohol like a neurosurgeon. Nothing.
The official Mazak maintenance manual—the thick, three-ring binder with the faded blue cover—was useless. It described the alarm as “Excessive position deviation. Check load monitor. Check way lubrication.” The troubleshooting flowchart ended with “Contact Mazak Support.”
But Mazak Support had a two-week lead time and charged $450 an hour. Arthur’s boss, a man named Sal who chewed toothpicks into splinters, refused.
“You’re the manual, Art,” Sal had said. “Fix it.”
So Arthur did what any desperate tech would do: he went underground.
Part Two: The Forum of Shadows
There was a forum, hidden deep in the non-indexed web of machine tool enthusiasts. No corporate logos. No SEO. Just a plain, black-background site called IronCode. To join, you had to verify ownership of a Mazak machine built between 1998 and 2006—the “Dark Iron” years, when the 640M was transitioning from DOS-based to Windows NT embedded.
Arthur’s login, Artie_5Axis, got him into a sub-board titled: “640M – The Unspoken Parameters.”
And pinned at the top was a thread with 847 replies. Its title: “The Maintenance Manual Exclusive – Do Not Share.”
The original poster, a user named Kurogane_640, claimed to be a retired Mazak field engineer from the Nagoya plant. He wrote:
“The official manual is for operators. This is for survivors. The 640M has three levels: Operator, Maintenance, and Existence. You know Maintenance. Existence is where the machine lives. It is not in any book.”
Arthur’s heart hammered. He scrolled past dozens of warnings, flame wars, and deleted posts. Finally, he found the first entry.
Existence Parameter E-4227: “Weekly Clock Drift Compensation”
“The 640M’s real-time clock is tied to the servo sampling frequency. If the internal lithium battery on the FX784 board drops below 2.95V, the clock accumulates a 0.3ms drift per day. After 7 days, the drift is 2.1ms. The Z-axis servo expects position feedback every 2.0ms. On the 7th day, at the precise time the drift crosses the threshold, the control declares servo lag. Replace battery. But not with Panasonic. Only Sony CR2354X-GP. The Panasonic has 0.1mm shorter terminal and creates a micro-arc.”
Arthur felt the world tilt. Thursday. 3:47 PM. Seven days after the last hard reboot. The machine had been running for six months without a full power-down—just E-stops and restarts. The clock drift had been accumulating like digital sediment.
He checked the FX784 board. The battery was a generic Panasonic. He replaced it with a Sony from a specialty electronics shop. Then he did something the forum said was mandatory: he performed a “Cold Baptism.”
Part Three: The Cold Baptism
The Exclusive manual had a ritual for parameter reset:
Arthur did this at 2 AM, alone in the cavernous shop. The fluorescent lights hummed. The Variaxis sat there, dark and patient, like a sleeping dragon.
He pressed the keys. The 640M screen flickered—not the usual boot sequence, but a deep blue screen with white kanji characters. Then English text:
“EXISTENCE MODE ACTIVE. RELEASE ALL SAFETY INTERLOCKS TO CONTINUE.” Lubrication and oil change Belt replacement Filter cleaning
Arthur hesitated. That was illegal. Unsafe. If Sal found out, he’d be fired. But the alarm had cost the shop $14,000 in lost production over six months.
He flipped the physical safety key to “BYPASS.” The machine whirred to life.
And then, on the screen, a menu appeared that he had never seen. Not “MAINTENANCE.” Not “DIAGNOSTICS.” It was labeled: “INHERENT MEMORY – DO NOT ALTER WITHOUT RITUAL.”
Part Four: The Three Forbidden Tables
The Exclusive manual, which Arthur had printed on a cheap laser printer and bound with duct tape, listed three parameter tables that did not exist in any official documentation.
Table K-91: Servo Eigenvalue Damping.
These 64 floating-point values tuned how the drives responded to resonance. The factory set them to “average safe.” But the Exclusive explained that each machine had a mechanical signature—a resonant frequency caused by its own casting imperfections. If you adjusted K-91 to match the machine’s “birth hum,” the servo lag vanished. The machine moved smoother than new.
Table S-04: Spindle Interrupt Hash.
The 640M’s spindle orientation routine used a hashing algorithm based on a prime number (7919). The Exclusive revealed that the algorithm had a bug: at 12,345 RPM, the hash collided with itself, causing a 0.5-degree orientation error. The fix was to change the prime to 7927. This was not in any service bulletin. Mazak had denied it for years.
Table X-00: The Z-Factor.
This was the most dangerous. A single 16-bit integer, default 32767. The Exclusive claimed it controlled the “sampling window for acceleration feedforward.” But a footnote in the forum said: “X-00 is not a parameter. It is a covenant between the control and the ballscrew’s thermal memory. Set it to 33012 on Mondays, 32767 Tuesday-Thursday, 32510 on Fridays. Ignore weekends. The machine knows.”
Arthur thought this was superstition. Until he tried it.
Part Five: The Test Cut
Friday morning, 6 AM. Arthur ran a test part—a turbine blade with a complex freeform surface. The previous best surface finish was 32 microinches. This time, the blade came out at 8 microinches. The machine had cut so smoothly that the chip load was perfectly uniform; no chatter marks, no stepover lines. It looked like liquid metal.
Sal ran his thumb over the surface. His toothpick stopped moving.
“What did you do, Art?”
“Maintenance,” Arthur said. “Exclusive.”
Sal didn’t ask again. But from that day on, the Variaxis ran 23 hours a day, five days a week. The Thursday alarm never returned.
Part Six: The Warning
Three weeks later, Arthur logged back into IronCode. A new private message waited from Kurogane_640:
“You changed X-00. I can tell by your cycle times. Be careful. The 640M has a watchdog timer that logs ‘Existence Mode’ entries. If you accumulate more than 12 hours in Existence, the control enters a failsafe state called ‘Iron Sleep.’ To wake it, you need a hardware key that only two people in the world have. One is dead. The other is retired in Thailand. Do not exceed 11.5 hours.”
Arthur checked the hidden log. He had 10.8 hours. He backed up all the custom parameters, replaced the Sony battery again, and never entered Existence Mode without a stopwatch.
The Variaxis ran for another eight years without a single servo alarm.
When the shop finally sold the machine at auction, Arthur wiped the parameters back to factory default. But he left one thing: a small piece of tape inside the electrical cabinet. On it, written in fine-point Sharpie:
“Battery: Sony CR2354X-GP. X-00: 33012 Mon, 32767 Tue-Thu, 32510 Fri. Praise Kurogane.”
Epilogue
The buyer was a young technician named Mira. She found the tape six months later, when the Thursday alarm started. She googled the phrase “Praise Kurogane” and found the archived IronCode forum.
She printed the Exclusive manual, bound it in red duct tape, and added her own chapter: “Part 7 – The Z-Axis Compensation for Humidity Above 80%.”
And somewhere in Nagoya, an old retired engineer smiled, cracked open a Kirin beer, and watched the forum’s user count tick up by one.
The iron remembers. The manual is exclusive. And the 640M will always keep its secrets—just close enough to find, just far enough to earn.
MAZATROL FUSION 640M Maintenance Manual is a critical resource for CNC technicians, covering everything from basic daily upkeep to complex system-level hardware replacements. Key Maintenance Operations
The manual outlines specific "exclusive" procedures required to keep the Fusion 640M system operational: System Controls
: Instructions for unlocking coded key passwords, initializing data, and changing system parameters. Data Management
: Procedures for backing up saved data to external media (CMT, Hard Disk, or Floppy) and registering parameters to EEROM. Hardware Maintenance
: Detailed steps for replacing hardware components, including the control unit, PC cards, and the hard drive. Advanced Diagnostics
: How to access diagnostic screens and the ladder monitor to stop/start the PLC for editing. Periodic Maintenance Schedule
To prevent unexpected machine downtime, the following tasks are prioritized:
: Check oil levels (hydraulic, spindle cooling, and lubricating), clear accumulated chips from the ATC cover and Y-axis slideway, and clean plate filters in the coolant tank. 6-Month (1,500 Hours)
: Perform hydraulic oil maintenance, including draining the unit and cleaning the tank. Critical Safety & Troubleshooting
Mazak 640 Series How To Restore NC Data | PDF | Backup - Scribd
Since the phrase "Exclusive" suggests a guide that goes beyond the basic operator’s manual—focusing on trade knowledge, hidden diagnostics, and critical preventative measures—this guide is structured as an "Insider’s Technical Supplement."
This guide assumes the user is a shop foreman, maintenance technician, or advanced operator looking to keep a legacy Mazak Mill running at peak performance.
| Code | Meaning | Action | |------|---------|--------| | 1 – EMG | Emergency stop pressed | Release E-stop. Check door interlock. | | 12 – SV | Servo communication error | Check fiber optic cable between NC and drive. | | 20 – PS | Power supply failure | +5V or +24V low. Replace PS-64. | | 30 – OT | Overtravel (soft/hard) | Release with handwheel or override parameters. | | 204 | Absolute position lost | Perform grid set (ZRN) procedure. | | 291 | Battery voltage low | Replace immediately. |
[RESET] + [DELETE].