Lenze 13051086 EMZ9371BC Operating Keypad Module
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Product Information
The Lenze 13051086 EMZ9371BC is an operating keypad module engineered for direct mounting on compatible Lenze drive controllers. Functioning as a local control, monitoring, and parameterization interface, this module mounts into the host drive Application Interface slot without external power cables or auxiliary wiring, taking its 5 V DC supply directly from the host drive. Featuring a backlit two-line LC display showing up to 16 characters per line, the unit provides high-visibility feedback of drive parameters, operating states, and fault codes directly at the drive face. It is compatible with Lenze 8200 vector frequency inverters, Lenze 8200 motec drives, and Lenze 9300 series servo controllers, including Servo, Vector, Position, Cam, and Register variants.
Integration is established through the integrated multi-pin Lenze Application Interface system plug, which seats into the front panel slot of the drive controller and maintains an IP20 protection rating when installed. The keypad is hot-pluggable, allowing technicians to connect or remove the module while the host drive controller remains powered. An internal non-volatile EEPROM memory enables complete drive parameter set backup, profile cloning, and restoration across compatible drives without requiring a PC or external software. Technicians can back up parameter sets from an operational drive and transfer them to a replacement unit in seconds. ABC Industrial Parts can support maintenance teams with tested replacement modules when replacing failed field units.
For daily monitoring and troubleshooting, the keypad provides direct code readout, including code C0003 for active errors and code C0161 for parameter set transfer status. Operating personnel can also access the drive trip and message history log directly on the LC display. Displayed alarm messages cover keypad parameter errors such as PR1 and PR2, EEPROM failure EEr, and interface communication fault CE0, alongside drive conditions like overvoltage OU, undervoltage LU, overcurrent OC1, and heatsink overtemperature OH. When persistent internal hardware errors like H05 occur on the drive board, replacing the unit or sourcing a tested exchange module from ABC Industrial Parts offers a fast path to restoring machine output.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 13051086 |
| Model/Type | EMZ9371BC |
| Component Type | Operating Keypad Module |
| Supply Voltage | 5 V DC |
| Display Type | Backlit LC Display (2 lines x 16 characters) |
| Interface Type | Lenze Multi-Pin AIF System Plug |
| Mounting Type | Pluggable AIF Slot |
| Protection Rating | IP20 (mounted) |
Programming and Configuration
The Lenze EMZ9371BC operating keypad module enables direct local parameter editing and drive configuration without requiring external PC connection or software utilities. Keypad navigation allows technicians to view actual operating values, inspect parameter registers, and alter control settings directly on the drive unit.
Equipped with internal non-volatile EEPROM memory, the module supports full drive parameter set cloning and restoration. A complete parameter profile can be saved into keypad memory and transferred to other drive controllers within the same family. Code C0161 on the display allows technicians to track the progress and status of parameter transfer operations during commissioning.
Communication and System Integration
The EMZ9371BC integrates into host drive controllers via the proprietary multi-pin Lenze Application Interface system plug. Mechanically mounted into the drive front panel slot, the module forms a direct electrical interface with the host controller without requiring external wiring.
Designed for hot-plug installation, the module can be safely inserted or removed while power is applied to the drive controller. Operating power is drawn directly through the multi-pin connector at 5 V DC, ensuring an IP20 enclosure rating when properly seated in the drive housing.
Diagnostics and Status Indication
Diagnostic feedback is delivered directly on the backlit 2-line LC display, which presents 16 characters per line. The display presents active error codes, parameter transfer states, and real-time operating metrics. Technicians can access code C0003 to read current active faults or access the trip log to review historical error messages.
Fault indications on the keypad cover both module-level parameter errors and drive-level operational faults, allowing quick identification of overtemperature, voltage threshold violations, and internal communication disruptions.
Replacement and Spare Part Considerations
When replacing an EMZ9371BC keypad module, ensure that the multi-pin connector contacts are clean and that the module seats firmly into the host drive Application Interface slot. The hot-pluggable design allows installation while drive power is applied.
When copying parameter sets between drives using keypad memory, confirm that the source and target drives share the same product family (such as Lenze 8200 vector, 8200 motec, or 9300 series) to avoid copy errors like PR1. If persistent memory write errors such as EEr occur during profile transfer, replacement of the keypad module is required.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| PR1 | Parameter set copy error | Parameter set stored in keypad is incompatible or inconsistent with the connected drive controller. | Attempting to transfer a parameter set from a different drive family or corrupt parameter memory. | Verify target drive type compatibility; re-read parameter set from original source drive or perform factory reset. |
| PR2 | Parameter set write error | Error during write transfer from keypad memory to drive controller EEPROM. | Keypad disconnected during transfer, bad electrical contact on AIF port, or write failure. | Ensure keypad is properly seated in AIF slot and re-try the transfer procedure. |
| EEr | EEPROM Memory Error | Non-volatile EEPROM memory read/write failure. | Internal memory corruption or hardware board fault inside keypad or host drive. | Internal hardware failure — power cycle system. If error persists, replace keypad module. |
| CE0 | AIF Communication Fault | Communication failure between keypad module and drive controller via Application Interface. | Poor mechanical connection, dirty plug contacts, or slot fault. | Remove and re-insert EMZ9371BC keypad into host drive; check interface contacts for damage. |
| OH | Drive Heatsink Overtemperature | Drive controller heatsink temperature exceeded maximum allowable limit. | Clogged heatsink, fan failure, cabinet ventilation fault, or continuous drive overload. | Clean heatsink, verify cooling fan operation, lower cabinet ambient temperature. |
| OC1 | Short Circuit / Overcurrent | Instantaneous output current threshold exceeded. | Short circuit in motor wiring, motor ground fault, or excessive acceleration slope. | Check motor insulation and cables for short/earth fault; increase acceleration time. |
| OU | DC Bus Overvoltage | DC bus voltage limit exceeded. | Excessive braking energy feeding back into drive, deceleration ramp too short, or high mains voltage. | Extend deceleration time or connect external braking resistor / brake chopper unit. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum operating limit. | Mains supply drop, power failure, or blown input line fuse. | Check incoming AC power mains voltage and line fuses. |
| H05 | Internal Hardware Fault | Internal diagnostic check failed on drive control board. | Internal component or power board failure. | Internal hardware failure — power cycle drive. If persistent, return unit for service or repair. |
Frequently Asked Questions
Which drive series are compatible with the Lenze 13051086 EMZ9371BC keypad?
The keypad is compatible with Lenze 8200 vector frequency inverters, Lenze 8200 motec drives, and Lenze 9300 series servo controllers, including Servo, Vector, Position, Cam, and Register variants.
Does the EMZ9371BC require a PC to copy drive parameters?
No. The keypad contains non-volatile EEPROM memory that can store a complete drive parameter set and transfer it directly to another compatible drive without external PC software.
Can the keypad module be plugged in while the drive is powered?
Yes. The EMZ9371BC is hot-pluggable and can be safely attached or removed from the drive Application Interface slot while power is active.
What does fault code PR1 mean on the keypad display?
Fault code PR1 indicates a parameter set copy error, which occurs when attempting to transfer an incompatible or corrupted parameter set between different drive families.
How is power supplied to the EMZ9371BC keypad?
The keypad draws its required 5 V DC supply directly from the host drive controller via the multi-pin Application Interface connection.
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