Lenze 13153727 EMZ9371BC Keypad Operating Module XT
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Product Information
The Lenze EMZ9371BC, identified by part number 13153727, is a keypad operating module in the 9300 and 8200 Vector Accessories family. Designed for local human-machine interaction and parameter adjustments, this Operating Module XT unit attaches directly to compatible drive controllers. Featuring a high-contrast, 2-line by 16-character LCD with an LED backlight, the device gives machine operators and technicians clear visibility into drive operating states, actual values, and active alarm conditions.
Connecting via the Function Information Front (FIF) multi-pin connector on the front panel of the drive controller, the EMZ9371BC supports hot-swappable operation, allowing plug-in and removal while the drive system remains powered. It incorporates integrated non-volatile EEPROM memory capable of saving one complete parameter set. This onboard memory enables simple parameter duplication and drive cloning directly on the plant floor without requiring a PC or engineering software. When replacing a damaged unit or configuring a spare controller, ABC Industrial Parts supports maintenance teams with tested replacement modules to restore production quickly.
For active monitoring and troubleshooting, the 2-line display indicates operating states including IMP, RDY, FAIL, WARN, and Imax, as well as specific trip fault codes such as OC1, OU, LU, PR0, EER, and H05. While parameter corruption errors like PR0 can often be resolved by restoring saved parameter sets from the module's EEPROM, hardware failures indicated by codes like EER or internal self-test failures such as H05 require hardware-level repair or complete unit replacement. When internal electronic faults occur on the control board or module, acquiring a fully tested replacement module through ABC Industrial Parts provides a rapid path to minimizing operational downtime.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 13153727 |
| Model / Type | EMZ9371BC |
| Component Type | Keypad Operating Module |
| Product Family | 9300 / 8200 Vector Accessories |
| Display Type | LCD with LED backlight (2 lines x 16 characters) |
| Parameter Set Storage | 1 complete parameter set |
| Front Interface Connection | FIF (Function Information Front) multi-pin connector |
| Hot Swappable | Yes |
| Lifecycle Status | Discontinued |
Programming and Configuration
The Lenze EMZ9371BC Operating Module XT enables parameter setup and drive configuration without requiring an external PC or software tools. Using the keypad and the 2-line by 16-character backlit LCD display, users can navigate drive parameters, adjust operating values, and monitor real-time system performance directly on the drive unit.
The module features integrated non-volatile EEPROM memory that stores one complete drive parameter set. This profile backup function allows operators to read and save configured parameter sets from an active drive and write them directly into another drive unit. For advanced system engineering and diagnostics, the drive system can also interface with the Global Drive Control (GDC) PC engineering software.
Communication and System Integration
Physical connection between the EMZ9371BC operating module and the target drive controller is made through the Function Information Front (FIF) multi-pin interface on the drive's front panel. This dedicated connection provides power and serial communication directly from the drive host.
The module's hot-swappable design allows insertion and removal during live drive operation without interrupting drive control processes. The EMZ9371BC is fully compatible across multiple Lenze drive platforms, including Lenze 9300 Servo Drives (EVS93xx series), 9300 Vector Frequency Inverters (EVF93xx series), 9300 Drive PLCs, and 8200 Vector Frequency Inverters (E82EVxxx series).
Diagnostics and Status Indication
System diagnostics are communicated directly via the 2-line backlit LCD readout. The display presents real-time operating states such as IMP (pulse inhibit), RDY (ready), FAIL (fault trip), WARN (warning), and Imax (current limit reached), allowing operators to assess drive status at a glance.
When fault conditions occur, the module displays specific trip codes on the LCD screen, such as overcurrent (OC1, OC2), DC bus overvoltage (OU), undervoltage (LU), or heatsink overtemperature (OH). Diagnostic data can also be accessed concurrently through the Global Drive Control (GDC) software interface.
Replacement and Spare Part Considerations
The Lenze EMZ9371BC (13153727) is a direct replacement for earlier EMZ9371BA and EMZ9371BB operating modules. Although the module has been discontinued by the manufacturer, it remains essential for servicing and maintaining installed Lenze 9300 and 8200 vector drive systems.
When replacing an operating module or an associated drive controller, ensure that parameter sets are backed up to the module's EEPROM prior to decommissioning the original unit. In cases where the original drive controller suffers an unrecoverable hardware failure (such as fault code H05) or EEPROM failure (fault code EER), parameters must be reloaded from a saved backup file or manually re-entered before bringing the replacement unit into service.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OC1 | Short circuit / Overcurrent during acceleration | Output current exceeded threshold during motor acceleration. | Short circuit at motor output, motor ground fault, acceleration time set too short. | Check motor wiring and insulation. Increase acceleration time. |
| OC2 | Short circuit / Overcurrent during deceleration | Output current exceeded threshold during motor deceleration. | Deceleration ramp too steep, motor short circuit, defective brake resistor. | Increase deceleration ramp time, check braking resistor and motor cables. |
| OU | Overvoltage DC bus | DC bus voltage exceeded upper limit threshold. | Excessive regenerative energy during braking, missing or open brake resistor, mains voltage too high. | Check mains supply voltage, check brake chopper and brake resistor wiring. |
| LU | Undervoltage DC bus | DC bus voltage fell below lower limit threshold. | Mains supply failure, supply voltage drop, open phase in AC input supply. | Check main power supply, check fuses and power supply terminals. |
| OH | Heatsink overtemperature | Drive heatsink temperature exceeded upper safety limit. | Fan failed or blocked, excessive ambient temperature, insufficient cooling clearance. | Clean heatsink cooling fins, check cabinet fan operation and ambient temperature. |
| OH4 | Motor overtemperature | Motor thermal contact or PTC thermistor reported excessive motor temperature. | Motor overload, inadequate motor cooling, defective thermal sensor. | Reduce mechanical load on motor, verify motor forced ventilation fan operation. |
| PR0 | Parameter set error | Corrupted or non-matching parameter set detected. | Power failure during parameter transfer or save, EEPROM data corruption. | Reload factory default settings or re-transfer parameter set from EMZ9371BC operating module. |
| EER | EEPROM fault | Internal EEPROM read or write failure on power-up or parameter storage. | Internal EEPROM hardware defect on drive control board or keypad module. | Internal hardware fault — power cycle drive; if persistent, return unit or operating module for repair. |
| H05 | Internal hardware fault | Drive controller internal self-test failed. | Internal electronic component failure on control or power PCB. | Internal hardware fault — return unit for repair or replace controller unit. |
Frequently Asked Questions
What drives are compatible with the Lenze EMZ9371BC operating module?
The EMZ9371BC is compatible with Lenze 9300 Servo Drives (EVS93xx series), 9300 Vector Frequency Inverters (EVF93xx series), 9300 Drive PLCs, and 8200 Vector Frequency Inverters (E82EVxxx series).
Can the EMZ9371BC replace older EMZ9371BA or EMZ9371BB modules?
Yes, the EMZ9371BC serves as a direct functional replacement for both EMZ9371BA and EMZ9371BB operating modules.
How does the parameter cloning feature work on the EMZ9371BC?
The EMZ9371BC contains internal non-volatile EEPROM memory that stores one complete parameter set. You can copy the configuration from a working drive into the module, plug the module into a replacement drive, and transfer the parameter set directly without needing a PC.
Can I connect or disconnect the EMZ9371BC while the drive is powered?
Yes, the EMZ9371BC features a hot-swappable Function Information Front (FIF) multi-pin connector that allows insertion and removal while the drive controller is operating.
What does fault code EER mean on the drive display?
Fault code EER indicates an internal EEPROM read or write failure on power-up or parameter storage, caused by an internal EEPROM hardware defect on the drive control board or keypad module. If power cycling does not clear the fault, the unit or operating module requires repair or replacement.
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