Lenze 13180716 EVS9323-EP 9300 Servo Positioning Controller
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Product Information
The Lenze 13180716 EVS9323-EP is a 1.5 kW servo positioning controller in the 9300 Servo Inverters family, designed for dynamic multi-axis positioning, precision velocity, and torque control. Operating across a 3-phase mains supply from 320 V AC to 528 V AC, this unit delivers a continuous output current of 3.9 A at 400 V AC (3.2 A at 480 V AC) with a peak current capability of 5.9 A for up to 60 seconds. Utilizing high-performance field-oriented vector control, the drive manages both synchronous and asynchronous AC servo motors across an output frequency range of 0 to 480 Hz with a standard switching frequency of 8 kHz, producing minimal thermal dissipation rated at 90 W.
Interfacing the EVS9323-EP into control systems relies on an integrated CANbus system bus operating at 500 kbps along with an Automation Interface (AIF) slot that supports plug-in fieldbus modules such as PROFIBUS (EMF2133IB), CANopen (EMF2173IB), and Ethernet (EMF2192IB). Commissioning a replacement unit requires restoring parameter settings, as the onboard non-volatile EEPROM holds up to four parameter sets containing axis profiles, thermal parameters, and function block configurations. Drive configuration and parameter transfer can be accomplished using Global Drive Control (GDC) software, EASY Starter, or an EMZ9371BC keypad operating module. ABC Industrial Parts can assist maintenance teams with parameter verification and pre-configuration prior to unit installation.
Diagnostic information is visible on the front panel via three status LEDs indicating active TRIP faults, controller readiness, and pulse inhibition. Additional diagnostic monitoring is accessible through parameters C0168 for fault memory history and C0183 for active TRIP codes, as well as via keypad and software diagnostic buffers. Fault conditions such as OC1 short circuits, OU overvoltage, or SFI feedback signal loss highlight specific line, motor, or wiring issues, whereas persistent EEPROM errors or internal sensor faults (H10, H11) indicate hardware failures that cannot be serviced in the field. When internal board failures occur, sourcing a tested replacement unit or utilizing repair services through ABC Industrial Parts provides a rapid path to restoring production uptime.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 13180716 |
| Model / Type | EVS9323-EP |
| Component Type | Servo Positioning Controller |
| Product Family | 9300 Servo Inverters |
| Rated Power | 1.5 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Continuous Output Current (400V) | 3.9 A |
| Continuous Output Current (480V) | 3.2 A |
| Max Peak Output Current | 5.9 A |
| Auxiliary Control Supply Voltage | 24 V DC |
| Power Loss | 90 W |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | Field-oriented vector control |
| Integrated System Bus | CANbus (500 kbps) |
Programming and Configuration
The Lenze EVS9323-EP features configurable internal function blocks that enable custom logic execution, arithmetic processing, and dedicated positioning ramps directly within the drive. Motion profiles and positioning parameters are established through Lenze Global Drive Control (GDC) software or the EASY Starter configuration suite. These engineering tools allow technicians to parameterize drive responses, set speed controller gains, adjust thermal limits, and map digital and analog input/output signals for complex multi-axis motion sequences.
Drive configurations are stored in an onboard non-volatile EEPROM memory capable of retaining up to four independent parameter sets. For field personnel operating without a PC connection, the optional EMZ9371BC keypad module plugs into the front panel to provide direct parameter access, diagnostic monitoring, and keypad-based parameter copy functions. When swapping a controller, parameter backups saved via GDC software or stored on a master keypad module can be downloaded into the target drive to maintain identical motion profiles without re-commissioning the mechanical axis.
Communication and System Integration
System integration on the EVS9323-EP is anchored by an integrated CANbus system bus capable of operating at 500 kbps. This internal system bus provides rapid cross-communication between multiple 9300 series servo drives and higher-level controllers, reducing cabinet wiring by executing synchronized motion commands and data transfer over a single twisted-pair network. To ensure reliable communication, both ends of the CAN bus trunk must be terminated with 120-ohm resistors, and the bus baud rate must be verified in drive parameter C0342.
For broader fieldbus integration, the unit features a plug-in Automation Interface (AIF) expansion slot. This modular slot accepts field-swappable interface modules, including the EMF2133IB PROFIBUS-DP module, EMF2173IB CANopen module, and EMF2192IB Ethernet module. These modules allow the servo positioning controller to integrate directly into PLC-driven control networks. Proper mechanical seating and tightening of the AIF module screws are essential to prevent fieldbus communication errors such as fault code CE0.
Diagnostics and Status Indication
The front panel of the EVS9323-EP features three status LED indicators that offer immediate visual feedback regarding drive operating conditions. A green READY/RUN LED indicates active operation or controller initialization, while a yellow IMP LED signals that pulse inhibit (CINH) is active and the inverter power stage is disabled. A solid red TRIP LED alerts operators to an active fault or protective shutdown, during which the output stage is inhibited.
Detailed fault diagnostics are retrieved using parameter monitoring or software tools. Parameter C0183 displays the active TRIP code, while parameter C0168 provides access to the fault memory history log. Diagnostic buffers can also be viewed via the EMZ9371BC keypad display or within the GDC software interface. These combined diagnostic tools allow technicians to distinguish between external faults—such as motor overload or mains supply issues—and internal hardware failures.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED (TRIP) | Red - Solid / Active | Fault/Trip active. Output stage inhibited. Internal error or external protective shutdown triggered. Indicates hardware fault if non-resettable. |
| Green LED (READY / RUN) | Green - Solid / Flashing | Controller ready / operation active. Flashing indicates operation mode or initialization. |
| Yellow LED (IMP) | Yellow - Solid / Active | Pulse inhibit active (controller inhibit / CINH active). Power stage disabled. |
Replacement and Spare Part Considerations
When replacing a Lenze EVS9323-EP, exact part number matching (13180716) is necessary to ensure electrical and functional identity within the 9300 Servo Inverter series. Replacement drives require parameter set transfer prior to operation. Operating parameters, motor data, encoder feedback settings, and custom function block programs must be uploaded from the existing drive or backup file using GDC software, or transferred via an EMZ9371BC keypad operating module.
In addition to parameter download, hardware accessories must be transferred from the original unit to the replacement drive. Any installed Automation Interface module—such as an EMF2133IB PROFIBUS or EMF2192IB Ethernet card—must be securely moved to the replacement drive's AIF slot. Feedback connectors for resolvers, Sin/Cos encoders, or incremental encoders at terminals X7 and X8 must be inspected to ensure firm seating and correct shield grounding.
Before powering up a replacement drive, line supply voltages must be verified within the 320 V AC to 528 V AC operating range, and auxiliary 24 V DC control power must be connected. If the replaced unit suffered from an internal EEPROM failure (EER) or sensor breakdown (H10, H11), parameter transfer directly from the old unit's internal memory may not be possible, requiring restoration from an archived GDC project file or parameter backup.
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 at motor terminals or power stage instantaneous overcurrent threshold exceeded. | Short circuit in motor cable or motor winding; excessive acceleration rate; damaged power stage. | Check motor and cable insulation. Increase acceleration time. If fault persists with motor disconnected, internal power module is defective — return unit for repair. |
| OC2 | Earth Fault | Ground fault / earth current threshold exceeded. | Ground fault in motor lead or motor frame; cable length exceeded; high capacitive leakage current. | Check motor leads and motor insulation to ground. Inspect cable shield grounding. |
| OC5 | I x t Overload | Continuous overload of drive power stage exceeding thermal capability limit. | Drive undersized for load cycle; mechanical jam/binding; continuous operation at low speed with high load. | Check drive loading and mechanical system. Reduce mechanical load or upsize drive. |
| OU | Overvoltage DC Bus | DC bus voltage exceeded upper limit (>770V DC / 800V DC threshold). | Excessive regenerative energy during deceleration; braking chopper resistor open/missing; mains supply voltage too high. | Extend deceleration time (deceleration ramp). Connect or check braking resistor and braking chopper operation. Check mains supply voltage. |
| LU | Undervoltage DC Bus | DC bus voltage fell below minimum voltage threshold. | Mains supply failure; phase loss; main contactor open during operation; input voltage drop. | Check mains input voltage, supply fuses, line contactors, and input power wiring. |
| OH | Heatsink Overtemperature | Drive heat sink temperature exceeded maximum allowed limit (>85°C). | Inadequate cabinet ventilation or cooling; fan failure or clogged heat sink; high ambient temperature. | Clean heat sink cooling fins. Verify cabinet fan functionality and airflow. Allow unit to cool down. |
| OH4 | Motor Overtemperature | Motor thermal sensor (PTC/KTY) detected motor overtemperature condition. | Motor overloaded; motor cooling fan failure; incorrect sensor parameterization or wire break in sensor loop. | Allow motor to cool down. Check motor loading and ventilation. Verify thermal sensor wiring and configuration parameters. |
| OH7 | Interior Overtemperature | Internal control board ambient temperature inside drive enclosure exceeded threshold. | Control cabinet temperature too high; enclosure fan failure. | Improve control cabinet cooling and air circulation. |
| CE0 | Communication Error AIF Slot | Communication failure or timeout on plug-in Automation Interface module. | Loose module connection; fieldbus cable break/disconnection; master controller stopped communication. | Check AIF module seat and screw fixing. Inspect fieldbus cable and bus termination. Verify fieldbus master state. |
| CE1 | CAN Bus Error 1 | Communication fault on integrated CAN system bus. | CAN bus wiring open or shorted; missing bus termination resistors (120 Ohm); baud rate mismatch. | Check CAN bus cable, shield connection, and 120-ohm termination resistors at both bus ends. Verify baud rate in parameter C0342. |
| EER | EEPROM Fault | Internal EEPROM checksum error or parameter data corruption detected on power-up. | Power failure during parameter save process; EEPROM memory component failure. | Reload factory default parameter set (C0002) and re-download configuration. If error persists, internal EEPROM hardware failure — replace unit. |
| H10 | Heatsink Sensor Fault | Heat sink temperature sensor open or short circuit. | Internal temperature sensor damaged or disconnected. | Internal hardware failure — return unit for service / repair. |
| H11 | Internal Temperature Sensor Fault | Internal ambient temperature sensor defect. | Control board hardware failure. | Internal hardware failure — return unit for service / repair. |
| LP | Phase Failure | Mains phase drop / asymmetry on AC input lines. | One mains line phase missing; blown input line fuse; unbalanced mains line supply voltage. | Check all three mains supply phase voltages under load and check supply line fuses. |
| NMAX | Speed Limit Exceeded | Motor speed exceeded maximum defined overspeed limit. | Speed loop instability; encoder signal loss / noise; runaway motor conditions due to wrong motor phase sequence or encoder direction. | Check feedback encoder connections and direction. Verify speed controller parameter tuning. |
| PR0 | Positioning Fault / Program Error | Positioning tracking error / software limit switch reached or invalid positioning profile call. | Mechanical jamming during positioning profile; software limit switch active; invalid target position given. | Check mechanical axis path. Check soft limit switch parameters and target position command. |
| SFI | Feedback Signal Fault | Resolver or encoder signal breakdown / loss. | Encoder/resolver cable disconnected or broken wire; shield grounding issues; defective feedback sensor. | Inspect encoder/resolver feedback cable and connector plug on X7/X8. Test encoder signal lines. |
Frequently Asked Questions
What software is used to configure the Lenze EVS9323-EP servo controller?
The drive is configured using Lenze Global Drive Control (GDC) software or EASY Starter. Parameter monitoring, diagnostics, and parameter transfers can also be performed using the plug-in EMZ9371BC operating keypad.
How do I transfer parameters from a failed EVS9323-EP to a replacement unit?
Parameter sets can be downloaded from an archived project file using Global Drive Control (GDC) software over a PC connection. Alternatively, parameter sets stored on an EMZ9371BC keypad operating module can be copied directly into the new drive.
What does a solid red TRIP LED indicate on the drive?
A solid red TRIP LED indicates an active fault condition that has inhibited the inverter power stage. Operators can check parameter C0183 or the GDC diagnostic buffer to identify the specific TRIP fault code causing the shutdown.
What fieldbus communication protocols are supported on the EVS9323-EP?
The drive includes an onboard CANbus system bus (500 kbps) and an Automation Interface (AIF) slot that supports plug-in expansion modules for PROFIBUS-DP (EMF2133IB), CANopen (EMF2173IB), and Ethernet (EMF2192IB).
What should I check if fault code OC1 appears on the display?
Fault code OC1 indicates a short circuit or instantaneous overcurrent in the power stage. Check the motor cable and motor winding insulation for short circuits, and verify acceleration rates. If the fault persists with the motor cable disconnected, the internal power module may be defective.
Can internal hardware faults like H10 or H11 be repaired on-site?
No, fault codes H10 and H11 indicate internal temperature sensor hardware failures on the control board. These board-level faults are not field-serviceable and require returning the unit for repair or replacing the controller.
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