Lenze 13015966 EVS9321-EPV004 – 9300 Servo Positioning Controller
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Product Information
The Lenze 13015966, model EVS9321-EPV004, is a 0.75 kW servo positioning controller within the Lenze 9300 Servo product family. Operating across a 3-phase AC supply voltage range of 320 V to 528 V AC with a 400 V AC nominal supply rating, this drive delivers a continuous rated output current of 2.5 A and a maximum output frequency of 480 Hz. Designed with integrated motion control positioning logic, the unit handles dynamic load cycles with a 150% peak current capacity of 3.75 A for up to 60 seconds. This positioning controller is deployed in applications such as multi-axis synchronization, pick-and-place material handling gantries, high-speed packaging machinery, and printing operations without requiring external motion hardware.
Connecting and installing the EVS9321-EPV004 involves physical interfaces for control signals, encoder feedback, and fieldbus communication. Dedicated connections include a Sub-D 9-pin resolver feedback port, a Sub-D 15-pin master encoder or frequency bus interface, four digital inputs, two digital outputs, two differential analog inputs (+/-10V), and two differential analog outputs (+/-10V). Fieldbus communication is expandable via an Automation Interface (AIF) slot that supports pluggable communication modules such as the EMF2133IB or EMF2131IB PROFIBUS-DP units. Commissioning a replacement unit requires restoring the parameter configuration, as the controller utilizes internal non-volatile EEPROM storage supporting up to four independent parameter sets. Parameters can be transferred using Lenze Global Drive Control (GDC) software, EASY Starter, or a pluggable EMZ9371BC XT keypad. ABC Industrial Parts can assist maintenance teams with parameter extraction and device preparation when installing spare drives.
Diagnostic conditions on the EVS9321-EPV004 are signaled via dedicated front-panel status LEDs and internal diagnostic logs. A solid red TRIP LED signals an active protective shutdown fault state, while the green Ready/Operating LED flashes when the drive is ready but inhibited, and turns solid green when the drive is enabled and operational. Detailed diagnostic status can be accessed via the keypad error history log, GDC online oscilloscope monitoring, or CAN system bus registers. Fault codes such as OC1 (short circuit), Sd2 (resolver failure), or OU (DC bus overvoltage) assist in troubleshooting field wiring, brake choppers, or motor insulation. Internal hardware errors such as H05 or unrecoverable memory faults like P12 indicate board-level failures that cannot be serviced in the field, making unit repair or a pre-tested replacement unit through ABC Industrial Parts the most practical solution to restore operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 13015966 |
| Model / Type | EVS9321-EPV004 |
| Component Type | Servo Positioning Controller |
| Product Family | 9300 Servo |
| Rated Power | 0.75 kW |
| Nominal Supply Voltage | 400 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Output Current | 2.5 A |
| Peak Output Current | 3.75 A |
| Maximum Output Frequency | 480 Hz |
| System Bus | CAN system bus (500 kbit/s) |
| Feedback Interface | Sub-D 9-pin Resolver |
| Master Encoder Interface | Sub-D 15-pin Incremental / Frequency Bus |
| Digital Inputs / Outputs | 4 Inputs / 2 Outputs |
| Analog Inputs / Outputs | 2 Inputs (+/-10V) / 2 Outputs (+/-10V) |
Programming and Configuration
The Lenze EVS9321-EPV004 features onboard positioning logic and integrated non-volatile memory capable of storing up to four independent parameter sets. Programming and commissioning are executed using Lenze Global Drive Control (GDC) engineering software or EASY Starter tools. These software packages facilitate drive parameterization, real-time signal monitoring, and complete backup file generation for fast unit replacement.
For field configuration without a PC, the unit supports the pluggable Lenze EMZ9371BC XT control keypad. The keypad connects directly to the drive, allowing technicians to modify operational parameters, review error history logs, and copy parameter profiles between compatible 9300 Servo drives. Restoring parameter sets to a new drive ensures that positioning control profiles, acceleration ramps, and I/O assignments match the machine specifications.
Communication and System Integration
System integration with the EVS9321-EPV004 is centered around an onboard CAN system bus interface operating at speeds up to 500 kbit/s via a Sub-D connection. This integrated CAN bus enables multi-axis synchronization, electronic shaft positioning, and rapid data exchange between multiple Lenze servo controllers. Correct network layout requires 120-Ohm terminating resistors at both physical ends of the CAN bus line.
Higher-level network integration is achieved through the built-in Automation Interface (AIF) slot. This expansion port accepts modular communication hardware, including the EMF2133IB and EMF2131IB PROFIBUS-DP modules, as well as INTERBUS or serial interface units. In addition, a Sub-D 15-pin master encoder interface allows master-slave drive coupling and frequency bus integration for complex multi-axis motion sequences.
Diagnostics and Status Indication
The Lenze EVS9321-EPV004 provides comprehensive system diagnostic capabilities using hardware LEDs, keypad status logs, and software monitoring tools. Front-panel LED indicators display real-time operational status, while software tools like Global Drive Control offer online diagnostic oscilloscopes and register readout over the system bus.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED (TRIP) | Red - Solid | Active fault/trip state. Drive disabled due to protective shutdown. |
| Green LED (Ready / Operating) | Green - Blinking / Solid | Blinking green indicates drive ready / inhibited; solid green indicates drive operational and enabled. |
Replacement and Spare Part Considerations
When replacing a failed Lenze EVS9321-EPV004 servo positioning drive, verify that the replacement unit matches the part number 13015966 and model designation EVS9321-EPV004. Because the drive relies on application-specific positioning parameters and I/O configurations stored in non-volatile memory, installing an unconfigured unit without restoring the parameter set will prevent normal machine operation.
Before commissioning a replacement unit, backup files created via Global Drive Control (GDC) or EASY Starter must be downloaded to the drive, or parameter data must be transferred directly using an EMZ9371BC XT keypad. Additionally, any option module installed in the Automation Interface (AIF) slot, such as a PROFIBUS-DP module, must be transferred to the replacement controller and checked for firm seating and pin alignment.
Physical mounting and cable connections should be verified prior to powering up. Ensure resolver wiring connected to terminal X7 and encoder connections at X8/X9 are secure, and check that terminating resistors are properly placed if the onboard CAN bus is used. If internal power module or memory failure codes such as H05 or P12 occur, internal components cannot be serviced on-site, requiring drive repair or an exchange unit.
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 | Short circuit or ground fault at motor output power terminals | Short circuit in motor cable, motor winding insulation failure, or power stage short-circuit | Check motor wiring and insulation; if fault persists with motor disconnected, internal hardware fault — return unit for repair |
| OC5 | Ixt Overload | Drive overload monitor activated (i2t thermal limit exceeded) | Continuous current demand exceeding continuous rating, mechanical jam, or undersized drive | Check mechanical load for blockage, verify acceleration profiles, check motor dimensioning |
| OH | Heatsink Overtemperature | Heatsink temperature exceeded permissible maximum limit | Insufficient cooling, clogged heatsink, ambient temperature too high, or cooling fan failure | Clean cooling fins, ensure proper cabinet ventilation, check external fan operation |
| OH4 | Motor Overtemperature | Thermal switch or PTC sensor connected to motor temperature monitoring terminal tripped | Motor overheating due to excessive load, failure of motor cooling, or sensor wiring open circuit | Allow motor to cool down, check motor load and forced ventilation, verify sensor wiring at terminal X10 |
| OU | Overvoltage DC Bus | Intermediate DC circuit voltage exceeded maximum threshold | Excessive regenerative energy during braking, insufficient braking resistor power, or line supply voltage spike | Extend deceleration ramps, check brake chopper circuit and external brake resistor connection |
| LU | Undervoltage DC Bus | Intermediate DC circuit voltage dropped below minimum threshold | Mains supply voltage drop, phase loss, or main contactor open while operating | Check mains voltage input, verify line fuses and input wiring |
| P12 | EEPROM Fault | Parameter data corruption or fault reading internal EEPROM memory | Power interruption during parameter write or EEPROM memory failure | Reload factory default parameters and re-commission; if error persists, internal board fault — contact service / replace unit |
| H05 | Internal Hardware Error | Power section or internal control hardware defect detected during power-on self test | Defective internal power module or control board hardware failure | Internal hardware fault — return unit for repair or replace device |
| Sd2 | Resolver Fault | Feedback fault from motor resolver connected to X7 interface | Resolver cable disconnected, broken wire, bad connection, or resolver failure | Check resolver feedback cable shielding, wiring connections, and motor resolver impedance |
| Sd3 | Encoder Signal Fault | Master encoder / frequency bus track signal failure at X8/X9 | Encoder wire broken, track missing, or noise interference | Inspect encoder cable, shielding, and connection at X8/X9 terminals |
| CE0 | CAN Communication Error | Bus off state or communication timeout on integrated CAN system bus | CAN bus line interruption, missing terminating resistors (120 Ohm), or incorrect baud rate setting | Check CAN cabling, verify termination resistors at both bus ends, check node address and baud rate settings |
| AIF-E | AIF Fault | Communication failure between control board and optional module in AIF slot | Loose module, defective fieldbus module, or configuration mismatch | Re-seat communication module in slot AIF, inspect module connector pins, replace module if failure persists |
Frequently Asked Questions
What software is used to program and parameterize the Lenze EVS9321-EPV004?
The drive is configured using Lenze Global Drive Control (GDC) software or Lenze EASY Starter. Alternatively, basic parameter adjustments and parameter transfers can be performed using the pluggable EMZ9371BC XT keypad.
How are parameter settings transferred to a replacement EVS9321-EPV004 drive?
Parameter settings can be transferred by uploading a backup file via GDC software or by saving parameter sets onto an EMZ9371BC XT control keypad from the original drive and downloading them to the replacement unit.
What fieldbus options are supported by the Lenze EVS9321-EPV004?
The drive includes an onboard CAN system bus (up to 500 kbit/s) and features an Automation Interface (AIF) slot that accepts optional fieldbus modules, including the EMF2133IB and EMF2131IB PROFIBUS-DP modules or INTERBUS interfaces.
What do the red and green status LEDs on the front panel indicate?
A solid red TRIP LED indicates an active fault state and protective drive shutdown. A blinking green LED indicates the drive is ready but inhibited, while a solid green LED indicates the drive is operational and enabled.
How should I respond to internal hardware fault codes like H05 or P12?
Fault code H05 indicates an internal hardware defect in the control or power board, while P12 indicates EEPROM parameter memory corruption. If re-loading default parameters does not clear P12, both errors represent internal faults that require returning the unit for repair or replacing the device.
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