Lenze 9321MP.2C.16 33.9321ML.1A-13.001 9300 Servo Positioning Drive 0.37kW
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Product Information
The Lenze 9321MP.2C.16, identified by model number 33.9321ML.1A-13.001, is a 0.37 kW compact servo positioning drive belonging to the Lenze 9300 Servo family. Operating across a 3-phase supply voltage range of 320 V AC to 528 V AC at 45 to 65 Hz, this digital drive combines motion control, positioning profiles, and power stage electronics into a single integrated unit. It provides a rated continuous output current of 1.5 A with a peak current capacity of 2.25 A for 60 seconds (150% overload capacity), delivering precise torque, speed, and position control for dynamic multi-axis motion, electronic gearing, and electronic camming systems in packaging, textile, material handling, and automated assembly machinery.
Interfacing the 9321MP.2C.16 into machine control architectures is managed through pluggable X4 screw terminals for the integrated CANopen system bus, alongside an Automation Interface (AIF) expansion slot X1 that accepts fieldbus modules including PROFIBUS-DP, DeviceNet, and INTERBUS. Speed and position feedback connect via the dedicated X7 resolver interface or the X8 interface for incremental encoders and master frequency inputs, complemented by an X10 master frequency output for drive-to-drive synchronization. Commissioning a spare unit requires restoring operational parameters, as drive profile configurations and up to four switchable parameter sets are stored in non-volatile EEPROM memory. Parameters can be configured or transferred using Global Drive Control (GDC) software via a LECOM PC adapter or through a direct Keypad XT module. Technical support from ABC Industrial Parts can assist in preparing replacement drives and transferring stored parameter configurations to minimize downtime.
Diagnostic conditions on the drive are indicated via status LEDs on the front panel, where a green Ready LED indicates normal operational readiness or drive disable, and a red Fault LED signals active TRIP conditions or warnings. Detailed diagnostic information and trip registers (C0168 through C0171) can be inspected through GDC software or the Keypad XT module. When encountering operational faults, initial line checks should verify incoming AC voltage, phase balance, resolver cabling at interface X7, and CAN bus termination resistors (120 Ohm). Persistent unresettable red fault indications, internal EEPROM corruptions, or short-circuit trip conditions with the motor disconnected indicate internal board faults; in these instances, direct field repair is not safe or practical, and sourcing a tested replacement unit from ABC Industrial Parts provides a fast route back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 9321MP.2C.16 |
| Model / Type | 33.9321ML.1A-13.001 |
| Product Family | 9300 Servo |
| Component Type | Servo Drive |
| Rated Output Power | 0.37 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Continuous Current | 1.5 A |
| Maximum Output Current | 2.25 A |
| Maximum Output Frequency | 480 Hz |
| Switching Frequency | 8 kHz |
| Power Dissipation | 40 W |
Programming and Configuration
Programming and configuring the Lenze 9321MP.2C.16 servo positioning drive is conducted using Lenze Global Drive Control (GDC) software or the Keypad XT (EMF2133IB) plug-in module. The drive architecture includes non-volatile EEPROM memory that stores up to four switchable parameter sets, allowing multi-application parameter storage and immediate setting retention without external backup battery power.
Drive parameterization involves configuring motor parameters, position loop gains, speed profile limits, and feedback device resolutions. Fault memory and diagnostic status are recorded in internal monitoring registers, notably parameter C0168 for active fault codes and parameters C0168 through C0171 for historical TRIP buffer records. Parameter structures can be uploaded, saved, and copied directly across drives to simplify replacement procedures.
Communication and System Integration
System integration is enabled via an onboard CANopen system bus connected through pluggable X4 screw terminal blocks. This integrated fieldbus interface enables fast multi-axis coordination and synchronized positioning across networked drives without requiring external motion controller hardware. Network configuration requires establishing node IDs and standard 120-ohm bus termination at network boundaries.
For higher-level fieldbus architectures, the drive incorporates an Automation Interface (AIF) expansion slot designated as slot X1. Optional communication modules such as PROFIBUS-DP (EMF2133IB / EMF2102IB), DeviceNet (EMF2175IB), and INTERBUS (2111IB / 2113IB) can be installed directly into slot X1. External pulse train synchronization and master-slave drive setups are facilitated via the X8 master frequency input and X10 incremental output interfaces.
Diagnostics and Status Indication
Comprehensive monitoring on the Lenze 9321MP.2C.16 is accomplished through hardware LED indicators, status parameter registers, and CANopen bus diagnostic objects. The drive continuously monitors power stage temperature, DC bus voltage levels, motor current, phase balance, and position feedback integrity.
Status parameter C0168 provides instant reading of active fault conditions, while register C0009 tracks CANopen diagnostic history. In the event of a fault, the controller triggers a TRIP state, locking the power stage until the condition is corrected and reset via control signals, software command, or power cycling.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready (Green) | Green - Flashing / Solid / Off | Flashing = Drive ready for operation / disabled; ON solid = Drive enabled and operating; OFF = Supply voltage missing or internal fault. |
| Fault / TRIP (Red) | Red - Solid / Flashing / Off | ON solid = Fault active (TRIP condition); Flashing = Warning / Message active; OFF = No fault. Permanent red light indicates internal hardware error. |
Replacement and Spare Part Considerations
Replacing a Lenze 9321MP.2C.16 drive requires matching both the hardware part number (9321MP.2C.16) and model designation (33.9321ML.1A-13.001) to ensure identical electrical ratings and control board firmware capabilities. Standard rated continuous current is 1.5 A with a 3-phase supply of 320 to 528 V AC.
A newly installed spare drive is not plug-and-play without initial configuration. Up to four parameter sets stored in the original unit's non-volatile EEPROM memory must be read and transferred to the replacement drive using GDC software or the Keypad XT module. Additionally, any optional slot X1 AIF communication module (such as PROFIBUS-DP or DeviceNet) from the original unit must be transferred to the replacement drive, and CANopen node address settings must be verified before restoring power to the automation network.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OH | Heatsink Overtemperature | Drive heatsink temperature exceeded maximum safety threshold. | Ambient temperature too high; inadequate cabinet cooling or blocked fan; continuous overload condition. | Check cabinet ventilation and cooling; clean heatsink cooling fins; reduce load or duty cycle. |
| OH4 | Motor Over-temperature | Motor temperature sensor (PTC or thermal contact) tripped. | Motor thermal overload; mechanical binding or high friction; sensor line interruption. | Allow motor to cool down; check motor load and mechanical alignment; check thermal sensor wiring at terminal T1/T2. |
| OC1 | Short Circuit / Earth Fault | Instantaneous overcurrent detection during acceleration or operation. | Short circuit in motor phase windings; short circuit to ground/earth; defective motor cable; power stage hardware failure. | Inspect motor and power wiring for insulation failure or short circuits. If fault persists with motor disconnected, internal hardware fault present - return unit for repair. |
| OC5 | I*t Motor Overload | Calculated motor thermal overload limit (I*t integration) exceeded. | Motor driven above rated continuous current for extended period. | Reduce acceleration rate or mechanical load; verify motor current parameters. |
| OU | DC Bus Overvoltage | DC bus voltage exceeds maximum limit (approx. 770 V DC). | Excessive regenerative energy during braking; brake chopper defective or braking resistor disconnected/undersized. | Extend deceleration ramp time; verify internal/external braking resistor value and wiring. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum operating limit. | Mains supply phase failure or voltage dip; line supply interruption; precharge circuit defect. | Measure line input voltage; check supply fuses and contactors. |
| CE0 | CAN Bus Fault / Bus Off | CANopen communication failure on system bus X4. | CAN bus line interrupted, shorted, or incorrectly terminated; baud rate mismatch. | Check CAN bus wiring, shield connection, and terminal resistors (120 Ohm); verify CAN baud rate and node ID. |
| CE1 | AIF Communication Fault | Communication error between drive controller and slot X1 automation module. | Fieldbus communication timeout; loose module attachment; fieldbus network cable disconnected. | Verify fieldbus module insertion into slot X1; check fieldbus cabling and master controller status. |
| H05 | Internal Hardware Error | Internal control board or power unit microcontroller fault detected during self-test. | Control board failure; corrupt internal EEPROM data; auxiliary voltage failure on main board. | Internal hardware fault - power cycle drive. If error persists, unit cannot be field-serviced and requires return for repair or replacement. |
| LP | Mains Phase Failure | One or more incoming AC line phases missing or unbalanced. | Blown supply fuse, loose line connection, or severe supply voltage unbalance. | Check input line fuses, main disconnect switch, and phase-to-phase voltages. |
| NMAX | Overspeed Detection | Actual motor speed exceeded maximum configured speed threshold. | Speed loop instability; incorrect feedback resolution parameter; external overhauling load. | Check speed controller tuning parameters; check resolver/encoder feedback integrity. |
| PR0 | Positioning Error / Following Error Exceeded | Difference between target position and actual position exceeded limit parameter. | Mechanical blockage, excessive load, undersized drive, or loose motor coupling. | Check mechanical drive train for binding; verify position loop gain settings and encoder connection. |
| Sd1 | Resolver Feedback Fault | Loss of resolver feedback signal on interface X7. | Resolver cable broken, plug disconnected, or defective resolver transducer. | Inspect X7 resolver cable and connector; test resolver winding resistance. |
Frequently Asked Questions
What tools are needed to configure parameters on the Lenze 9321MP.2C.16?
Parameters can be configured using Lenze Global Drive Control (GDC) software via a LECOM PC adapter (EMF2102IB) or directly using a plug-in Keypad XT module (EMF2133IB).
Does the Lenze 9321MP.2C.16 support fieldbus communications?
Yes, it features an integrated CANopen system bus on pluggable X4 terminals and an Automation Interface (AIF) slot X1 that supports PROFIBUS-DP, DeviceNet, and INTERBUS expansion modules.
What feedback devices can be connected to the drive?
The drive features a dedicated X7 interface for standard resolvers and an X8 interface for incremental encoders and step/direction master frequency inputs.
What does a solid red Fault LED indicate on the drive?
A solid red Fault / TRIP LED indicates an active TRIP condition, such as overtemperature, overcurrent, or position error. A permanent red light that persists after a power cycle indicates an internal hardware failure.
How are parameter sets backed up and transferred during a drive replacement?
Parameter sets stored in the non-volatile EEPROM can be saved and uploaded using Global Drive Control (GDC) software or copied directly using the Keypad XT module, then downloaded into the replacement unit.
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