Lenze EVS9330-EP 9300 Servo Position Controller 45 kW
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Product Information
The Lenze EVS9330-EP is a 45 kW servo position controller from the Lenze 9300 Servo family, combining drive inverter power electronics and integrated position profile control inside a compact IP20 panel-mount housing. Designed for dynamic multi-axis positioning and indexing applications across packaging, material handling, and metalworking machinery, this drive operates on a 3-phase supply ranging from 320 V AC to 528 V AC (400 V AC nominal). It delivers a continuous output current of 89 A with a peak overload current capacity of 133.5 A for up to 60 seconds, allowing rapid acceleration of high-inertia loads without drive tripping.
Connecting and commissioning a replacement EVS9330-EP requires matching physical interfaces and transferring device configurations prior to operation. The unit features built-in system bus (CAN/CANopen) connectivity for inter-drive synchronization, a Sub-D resolver input connector at X7, and incremental or SinCos encoder interface terminals at X8 and X9. External communications are expanded through an Automation Interface (AIF) slot, which accepts plug-in fieldbus modules such as the PROFIBUS-DP module (EMF2133IB), INTERBUS adapter (EMF2102IB), or LECOM serial interfaces. To put a replacement drive into service, operational parameter sets stored in internal EEPROM memory must be loaded using Global Drive Control (GDC) software or transferred via a portable Keypad XT module (EMF2102IB / 9371BB). When replacing a damaged unit, ABC Industrial Parts can assist in sourcing ready-tested replacement drives and supporting parameter extraction from faulty donor boards.
Diagnostic status monitoring on the drive is provided by front-facing LED indicators and accessible parameter registers. A green DRIVE READY LED signals operational readiness or active drive enablement when blinking, while a red TRIP / FAULT LED indicates active trip conditions or warning states. Specific diagnostic codes are retrieved through parameter C0059 for fault history or parameter C0183 for the controller state word, as well as on the Keypad XT display. First-line troubleshooting involves measuring line-to-line AC voltages across L1, L2, and L3 for phase loss (PI) or undervoltage (LU), checking brake resistor circuits for overvoltage (OU), and verifying resolver connections at connector X7 (Sd7). Hardware errors such as control board failure (H05) or non-volatile memory corruption (EER) indicate internal circuit failure that cannot be serviced in the field; in such cases, acquiring a fully tested replacement from ABC Industrial Parts offers the fastest route back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9330-EP |
| Model / Type | 9300 Servo Position Controller |
| Product Family | Lenze 9300 Servo |
| Component Type | Servo Position Controller |
| Rated Power | 45 kW |
| Nominal Supply Voltage | 400 V AC |
| Supply Voltage Range | 320 V AC to 528 V AC (3-phase) |
| Rated Continuous Current | 89 A |
| Maximum Peak Output Current | 133.5 A (150% peak overload for 60s) |
| Maximum Output Frequency | 480 Hz |
| Default Switching Frequency | 8 kHz |
| Enclosure Protection Rating | IP20 |
| Mounting Type | Panel Mounting |
Programming and Configuration
The EVS9330-EP servo controller utilizes Lenze Global Drive Control (GDC) software and the handheld Keypad XT module (EMF2102IB / 9371BB) for parameter setup, commissioning, and motion profile adjustments. Up to four complete parameter sets can be stored in the non-volatile internal EEPROM memory, allowing rapid switching between production recipes without reconfiguring the hardware.
Parameter management includes dedicated code registers for system oversight and configuration reset. Setting parameter C0002 to 1 initiates a factory default parameter reset, clearing potential configuration errors during commissioning. Speed thresholds and dynamic response parameters, such as the maximum motor speed limit configured under code C0596, ensure motion profiles remain within safe mechanical parameters.
Communication and System Integration
Multi-axis coordination and system integration are facilitated by an integrated system bus (CAN/CANopen) interface. This system bus supports fast inter-drive data exchange, process data transfer via CAN-In1, and synchronized multi-axis positioning. Network health can be monitored directly, with communication timeouts raising dedicated system bus alarms like CE1 or bus-off states under code CE4.
Higher-level fieldbus integration is accomplished using the Automation Interface (AIF) slot located on the front of the unit. The AIF slot accommodates optional communication modules including the PROFIBUS-DP module (EMF2133IB), INTERBUS modules (EMF2102IB), and LECOM serial communication interfaces. Fieldbus loss or communication disruptions between the CPU and the installed AIF card trigger fault code CE0, requiring verification of card seating and network wiring.
Diagnostics and Status Indication
Comprehensive operational monitoring is built into the EVS9330-EP. Two dual-function LEDs on the housing give immediate visual status: the green DRIVE READY LED lights solid when the drive is ready for power-up and blinks when enabled, while the red TRIP / FAULT LED lights solid during trip conditions and blinks during warning states. Detailed diagnostic data, active fault histories, and controller status words are accessible via Keypad XT, GDC software, or direct reading of parameter codes C0059 and C0183.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| DRIVE READY | Green - Solid / Blinking | Solid green indicates drive is ready for operation; blinking green indicates drive operational / enabled. |
| TRIP / FAULT | Red - Solid / Blinking | Solid red indicates active TRIP fault condition; blinking red indicates warning state. |
Replacement and Spare Part Considerations
Replacing a Lenze EVS9330-EP requires verified part number alignment and matching power ratings to ensure full physical and electrical compatibility. The replacement controller must match the 45 kW / 89 A rating and accept the same 3-phase supply voltage range (320 V AC to 528 V AC). Auxiliary communication options, such as installed PROFIBUS-DP or INTERBUS AIF modules, should be transferred from the original unit to the replacement drive.
Operational downtime is minimized during drive replacement by backing up parameter profiles before swapping units. Using the Keypad XT module or GDC software, stored parameter sets in internal EEPROM should be loaded into the new drive prior to enabling operation. Inspecting external resolver cables at connector X7, encoder connections at X8/X9, and termination resistors on CANbus lines ensures clean signal transmission and prevents immediate feedback or fieldbus faults upon restart.
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 extreme overcurrent detected at drive output terminals U, V, W. | Short circuit in motor cable, winding-to-winding short in motor, or defective power output stage. | Check motor and output motor cabling for short circuits. If error persists with motor disconnected, internal power stage is defective — return unit for repair. |
| OC2 | Earth Fault | Ground fault / earth leakage current detected in output phase or motor. | Insulation breakdown in motor winding, grounded phase cable, or high ground capacitive leakage current. | Check motor and wiring insulation resistance with insulation tester (megohmmeter). Inspect cable shield connection. |
| OC5 | I x t Overload | Drive continuous output current overload (I x t limit exceeded). | Mechanical overload, jammed axis, acceleration ramps too steep, or under-dimensioned drive. | Check mechanical axis for stiffness or jamming; adjust acceleration/deceleration times; verify motor load profile. |
| OU | Overvoltage DC Bus | DC bus voltage exceeded upper safety threshold. | Regenerative energy from braking motor cannot be absorbed; brake chopper defective or brake resistor not connected / faulty. | Check brake resistor connections and resistance value; extend deceleration ramp times; verify line supply voltage. |
| LU | Undervoltage DC Bus | DC bus voltage fell below lower safety limit. | Mains supply voltage interruption, blown input fuse, or line phase loss. | Check mains voltage at AC supply terminals; check fuses and power contactors. |
| OH | Drive Heatsink Overtemperature | Heatsink temperature exceeded permissible maximum operating limit. | Inadequate control cabinet ventilation, clogged heatsink cooling fins, broken cabinet fan, or ambient temperature too high. | Clean heatsink, ensure minimum enclosure clearance, verify cabinet fan operation. |
| OH4 | Motor Overtemperature | Motor thermal contact (PTC / Klixon) at terminal X10 opened. | Motor thermal overload, cooling fan failure on motor, or broken temperature sensor cable. | Allow motor to cool down, inspect motor cooling, verify thermal sensor cable continuity at X10. |
| OH7 | Interior Overtemperature | Internal housing temperature inside the drive unit exceeded safe threshold. | Ambient temperature inside control cabinet too high, fan failure inside drive housing. | Improve cabinet cooling and check internal drive air circulation. |
| NMAX | Speed Limit Exceeded | Motor actual speed exceeded maximum threshold configured in C0596. | Unstable speed control loop, wrong feedback scaling, or external overhauling load driving motor. | Check speed controller gains, resolver alignment, and parameter C0596 setting. |
| CE0 | AIF Communication Error | Communication failure between drive CPU and plug-in AIF fieldbus module. | Fieldbus network fault, broken bus cable, loose fieldbus module in AIF slot, or module failure. | Check module seating in slot AIF, inspect network wiring, check fieldbus master status. |
| CE1 | System Bus Communication Error (CAN-In1) | Time-out / failure receiving process data via System Bus (CAN) input 1. | CANbus connection open, missing bus termination resistor (120 Ohm), or transmitting node offline. | Verify CANbus line wiring, check termination resistors at both ends of CAN line. |
| CE4 | CAN Bus Off | System bus (CAN) node entered Bus Off error state due to excessive error frames. | Severe noise/EMC interference on CAN lines, incorrect baud rate setting, or reversed CAN-H/CAN-L wiring. | Check CAN wiring polarities, shield grounding, baud rate parity across all nodes. |
| Sd7 | Resolver Fault | Resolver signal error or feedback line break on connector X7. | Damaged resolver cable, defective plug connection X7, or broken resolver coil. | Inspect resolver cable and connector pins; test resolver winding resistances. |
| Sin | SinCos / Encoder Track Fault | Sin/Cos feedback signal fault or track error detected on X8/X9. | Encoder cable defect, track A/B signal loss, or sensor noise interference. | Check encoder wiring and shielding connection at X8/X9. |
| H05 | Internal Hardware Error | Control board hardware self-test failure detected during startup or execution. | Internal electronic component or circuit board failure. | Internal hardware fault — not field serviceable. Replace unit or return to service center. |
| EER | EEPROM Fault | Non-volatile EEPROM parameter memory checksum error or write failure. | EEPROM memory corruption or hardware memory chip failure. | Attempt factory parameter reset (C0002 = 1). If error persists, internal control board is damaged — replace unit. |
| PR0 | Program Error | Internal operating system / firmware fault. | Firmware corruption or CPU execution crash. | Power cycle drive. If fault recurs, reload drive firmware or return unit for repair. |
| PI | Phase Failure | Mains supply input phase missing or severe phase unbalance. | Blown main fuse in one input phase, disconnected supply lead, or unstable line voltage. | Measure line-to-line voltages across L1, L2, L3 under load; inspect fuses and supply contactor. |
Frequently Asked Questions
How can parameters be transferred when replacing an EVS9330-EP servo controller?
Parameter profiles can be transferred directly using a plug-in Lenze Keypad XT module (EMF2102IB / 9371BB) or via a PC connected with Lenze Global Drive Control (GDC) software. Parameter sets stored in the non-volatile internal EEPROM of the original drive can be uploaded and downloaded into the replacement unit without re-commissioning motion parameters.
What feedback devices are supported by the Lenze EVS9330-EP controller?
The drive supports Sub-D resolver feedback connected at terminal X7, along with incremental encoder and SinCos feedback systems connected at terminals X8 and X9. It also accommodates master frequency coupling for synchronized multi-axis configurations.
What does fault code OC1 indicate on the EVS9330-EP drive?
Fault code OC1 indicates an overcurrent or short circuit detected across output phases U, V, and W. This can be caused by a short circuit in the motor cable, a shorted motor winding, or a damaged power output stage inside the drive. If the error persists after disconnecting motor leads, the internal power stage requires repair or unit replacement.
How are fieldbus interfaces added to the EVS9330-EP controller?
Optional fieldbus connectivity is added using the front-mounted Automation Interface (AIF) slot. This slot accepts plug-in fieldbus modules including PROFIBUS-DP (EMF2133IB), INTERBUS (EMF2102IB), and LECOM serial interface adapters.
What initial checks should be performed if fault code OU appears?
Fault code OU indicates an overvoltage condition on the DC bus, typically caused by regenerative braking energy. You should check the brake resistor connections and resistance value, extend deceleration ramp times, and verify that the line supply voltage remains within the allowed 320 V AC to 528 V AC operating range.
Can an internal hardware failure like fault code H05 or EER be repaired on site?
No, internal board failures such as H05 (Internal Hardware Error) or EER (EEPROM Fault) involve control board components and non-volatile memory corruption that are not field-serviceable. The unit must be repaired by a qualified service facility or replaced with a tested exchange module.
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