Lenze 9321MP.2F.19.V501 33.9321ML.1A-13.001 9300 Servo Drive
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Product Information
The Lenze 9321MP.2F.19.V501, model designation 33.9321ML.1A-13.001, is a 0.37 kW servo controller drive belonging to the 9300 Motion Control family. Operating on a 3-phase mains supply spanning 320 V AC to 528 V AC at 45 to 65 Hz, this IP20-rated unit delivers a rated output current of 1.5 A at 400 V AC with an overload current capability of up to 2.25 A (150%) for up to 60 seconds. The drive incorporates internal motion positioning, electronic cam functionality, and phase synchronization, enabling complex motion sequences to execute directly on the device and offloading real-time calculation requirements from master programmable controllers.
Connection points include dedicated Sub-D terminal connectors for resolver feedback on terminal X7, incremental encoder feedback on terminal X8, and master frequency interfaces. Network expansion and operator control are accommodated through an Automation Interface (AIF) slot, which accepts pluggable modules such as PROFIBUS-DP option cards (EMF2133IB or EMF2131IB), DeviceNet, Interbus, or the EMZ9371BC keypad display module. Bringing a spare unit into service requires restoring software parameter profiles stored in internal EEPROM memory, which supports up to four switchable parameter sets. Parameter set transfers can be conducted using Lenze Global Drive Control (GDC) software or the detachable operator keypad, ensuring parameter structures match before operating the replacement. ABC Industrial Parts can support technical personnel needing replacement hardware or parameter backup transfers.
System diagnostic conditions are signaled on the front panel via dual LED indicators, accompanied by fault history logging accessible through GDC software or the operator keypad. A solid green LED indicates normal operation with the drive enabled, whereas a slow blinking green LED signals a controller inhibit state. A solid red LED alerts operators to an active TRIP condition triggered by events such as motor overcurrent (OC1, OC2), DC bus overvoltage (OU), undervoltage (LU), or feedback failures (Sd2, Sd3). Severe fault codes including EEPROM read errors (EER) or internal board errors (H05, PR0) indicate hardware-level component failure that cannot be serviced in the field. In these instances, replacing the drive or submitting the unit to ABC Industrial Parts for professional repair provides a fast path back to operational capability.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 9321MP.2F.19.V501 |
| Model / Type | 33.9321ML.1A-13.001 |
| Product Family | 9300 Motion Control |
| Component Type | Servo Drive |
| Rated Power | 0.37 kW |
| Supply Voltage | 3x 400 / 480 V AC |
| Supply Voltage Range | 320 - 528 V AC (45-65 Hz) |
| Continuous Output Current | 1.5 A |
| Maximum Output Current | 2.25 A |
| Switching Frequency | 8 kHz |
| IP Rating | IP20 |
| Integrated Fieldbus | CAN / CANopen |
| Digital Inputs | 4 |
| Digital Outputs | 2 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
Programming and Configuration
The Lenze 9321MP.2F.19.V501 utilizes freely configurable function blocks to execute complex motion control routines without burdening a main PLC. Internal motion functions include multi-axis positioning, electronic cam shaping, and phase synchronization. Settings are managed through Lenze Global Drive Control (GDC) software connected via PC interface or directly on the drive using the pluggable EMZ9371BC keypad display module.
Non-volatile EEPROM memory within the servo drive stores up to four distinct, switchable parameter sets. When replacing a unit or reconfiguring a machine, parameters must be exported from the original hardware or backup archives using GDC software or saved into the keypad memory before loading onto the replacement unit. Ensuring identical parameter structures and firmware compatibility prevents code corruption or parameter errors such as error C013 upon startup.
Communication and System Integration
Inter-drive communication and control network coordination are handled through an onboard CAN system bus interface operating at network speeds up to 500 kbit/s. This integrated CAN/CANopen interface enables rapid peer-to-peer data interchange for synchronized multi-axis drives across packaging, textile, and material handling machinery.
For plant-wide network architectures, the built-in Automation Interface (AIF) expansion slot allows pluggable fieldbus option modules to be installed. Supported option cards include EMF2133IB and EMF2131IB PROFIBUS-DP interfaces, as well as Interbus and DeviceNet modules. In addition to fieldbus cards, the AIF slot supports direct attachment of the EMZ9371BC operator keypad module.
Diagnostics and Status Indication
System state and fault conditions on the 9321MP.2F.19.V501 are indicated by dual LED displays located on the front panel, supported by accessible diagnostic registers and fault history logs via GDC software or the operator keypad.
The green LED monitors operational states, signaling normal run mode when solid or controller inhibit when blinking at 1 Hz. The red LED alerts operators to TRIP faults when solid and warning thresholds when blinking. Fault history logs capture preceding operational events for root-cause analysis.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Green LED (Operation) | Green - Solid / Blinking | ON: Drive enabled and operating normal. Blinking slowly (1 Hz): Controller inhibit (CINH) active, drive ready. Blinking rapidly (2 Hz): Warning active or controller inhibit with lock. |
| Red LED (Fault) | Red - Solid / Blinking | ON: TRIP active (fault shut-down). Blinking: Warning condition active. |
Replacement and Spare Part Considerations
Replacing the Lenze 9321MP.2F.19.V501 servo drive requires careful attention to identity match, including part number 9321MP.2F.19.V501 and model identification 33.9321ML.1A-13.001. Because the 9300 Motion Control series is discontinued, direct functional replacements depend on matching existing drive hardware configurations, including feedback interfaces and optional fieldbus communication modules installed in the AIF slot.
Before bringing a replacement unit into service, technical personnel must transfer the complete parameter profile from the existing drive or backup database. Transferring parameters via the EMZ9371BC keypad or GDC software ensures that positioning data, electronic cam profiles, I/O allocations, and motor feedback parameters are correctly applied to the spare drive.
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 / Earth Fault | Short circuit or ground fault detected on motor output terminals. | Short circuit in motor windings or motor cable; earth fault in cable; acceleration ramp set too steep. | Check motor cable and motor windings for short circuit or low insulation resistance; check acceleration time settings. |
| OC2 | Earth Fault | Ground fault detected on motor output phases during operation. | Ground connection fault in motor cable or motor housing. | Check insulation resistance of motor and motor wiring. |
| OC5 | Drive Overload (I x t) | Drive continuous overload threshold exceeded. | Drive operated above continuous output current limit for extended period; dynamic load too high; mechanical blockage. | Reduce mechanical load; check motor sizing and drive selection; inspect mechanics for binding. |
| OU | DC Bus Overvoltage | DC bus voltage limit exceeded max threshold. | Regenerative energy from motor during deceleration too high; braking resistor missing or damaged; deceleration time too short. | Increase deceleration time ramp; install or inspect external brake resistor and brake chopper circuit. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum threshold. | Mains voltage supply drop, phase failure, or supply interruption. | Check supply voltage, fuses, contactors, and mains power stability. |
| OH | Heatsink Overtemperature | Drive power stage heatsink temperature exceeded maximum limit. | Insufficient cooling airflow, ambient temperature too high, cooling fan failed or clogged heat sink. | Clean cooling fins, check control cabinet ventilation and internal fan operation. |
| OH4 | Drive Inside Overtemperature | Internal cabinet / board temperature exceeded threshold. | Excessive enclosure internal temperature or failing fan. | Improve cooling inside control panel. |
| OH7 | Motor Overtemperature (Thermal Sensor) | Motor thermal sensor (PTC/KTY/NTC at terminal X10) triggered overtemperature fault. | Motor thermal overload, cooling fan failure on motor, or broken temperature sensor wire. | Allow motor to cool down, inspect motor cooling, check sensor wiring at terminal X10. |
| NMAX | Maximum Overspeed Exceeded | Motor actual speed exceeded maximum threshold limit. | Speed controller unstable, overshooting load, incorrect feedback scale. | Tune speed controller parameters, check encoder feedback settings. |
| EER | EEPROM Fault | Internal EEPROM memory read/write error during access. | Internal memory corrupt or hardware failure. | Internal hardware failure — reload default parameters; if error persists, return unit for repair. |
| H05 | Internal Hardware Error | Internal power board or control board hardware fault detected during self-test. | Internal component failure on control unit or power stage. | Internal hardware fault — power cycle drive; if fault remains, return unit for repair. |
| PR0 | Microprocessor Fault | Internal processor system failure or program execution fault. | Severe electromagnetic interference or internal board hardware defect. | Internal board error — check EMC wiring; power cycle unit; if persistent, return for repair. |
| CE0 | Automation Interface (AIF) Communication Error | Communication interruption between drive and pluggable AIF fieldbus module. | Loose fieldbus option card, defective module, or fieldbus line broken. | Check seating of option card in AIF slot; check bus cabling and host controller status. |
| CE1 | System Bus (CAN) Communication Error | Telegram error or timeout on onboard CAN system bus interface. | CAN bus line interruption, missing bus termination resistor, mismatched baud rate. | Inspect CAN wiring, verify 120-ohm termination resistors at network ends, check baud rate settings. |
| Sd2 | Resolver Feedback Signal Fault | Resolver signal open circuit or invalid feedback signal on X7. | Cable break in resolver cable, resolver damaged, pin assignment incorrect. | Check resolver wiring, shield grounding, and resolver connector at X7. |
| Sd3 | Encoder Signal Loss | Incremental encoder signal fault or missing track signal on X8. | Encoder cable defect, power supply to encoder missing, broken track. | Check encoder cable connection, supply voltage to encoder, and signal integrity. |
| C013 | Parameter Set Fault | Inconsistent or corrupted parameter set loaded into memory. | Interrupted transfer process or incompatible firmware version. | Reload valid parameter set or perform factory reset (C0002). |
Frequently Asked Questions
How is parameter data backed up and restored on the Lenze 9321MP.2F.19.V501?
Parameter profiles can be backed up and restored using Lenze Global Drive Control (GDC) software connected via a PC interface, or copied directly using the pluggable EMZ9371BC operator keypad module. The drive stores up to four switchable parameter sets in non-volatile EEPROM memory.
What motor feedback types are supported by this servo drive?
The drive supports multiple motor feedback types, including resolver connections at Sub-D connector X7, incremental encoder inputs at Sub-D connector X8, and master frequency input/output signals.
How do I configure fieldbus communications on the 9321MP.2F.19.V501?
The drive features an onboard CAN/CANopen system bus interface operating up to 500 kbit/s. Additional fieldbus protocols, such as PROFIBUS-DP (using EMF2133IB or EMF2131IB modules), DeviceNet, or Interbus, can be added by installing an option card into the Automation Interface (AIF) slot.
What do the front panel LED indicators mean during operation?
The green LED displays operational status: solid ON means the drive is enabled and operating normally, slow blinking (1 Hz) indicates controller inhibit (CINH) mode, and rapid blinking (2 Hz) indicates a warning or controller inhibit lock. The red LED indicates a TRIP fault shutdown when solid ON, or an active warning state when blinking.
What steps should be taken if the drive displays an internal EEPROM fault (EER) or hardware fault (H05/PR0)?
For error EER, attempt to reload a valid parameter set or perform a factory reset. If the error persists, or if internal hardware codes H05 or PR0 occur, power cycle the unit and check EMC wiring. Persistent hardware or memory faults indicate unserviceable board-level issues requiring repair or unit replacement.
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