Lenze 8400 StateLine C Inverter Operating Instructions

Product model and specifications

Product Series: Lenze 8400 StateLine C Model Code: E84AVSCxxxxxxx

Power range: 0.25~45 kW

Voltage level:

2: 230V single-phase/three wire (0.25~2.2kW)

4: 400/500V three-phase (0.37-45kW)

Control type: Vector control frequency converter

Safety Function: * * STO (Safe Torque Off) * * Safety Torque Off

Safety standards (core)

Power off waiting: After power off, the power terminal should be charged for at least 3-20 minutes, and it is strictly prohibited to touch it immediately

Grounding requirements: fixed installation+PE protective grounding, in accordance with EN 61800-5-1

Leakage protection: B-type RCD must be used for three-phase power supply, and A-type RCD can be used for single-phase power supply

High temperature warning: The radiator is at high temperature, and unprotected touch is prohibited

Electrostatic protection: Release static electricity before operation to prevent damage to the circuit board

Terminals and wiring

1. Power terminal

Terminal function

X100 main power input (L1/L2/L3/N)

X105 motor output (U/V/W)+braking resistor

X106 Motor Temperature Detection (PTC)

X80 STO safety torque shutdown interface

2. Control terminals

Terminal function

X3 analog input (0~10V~4~20mA)+output

X4 digital input/24V power supply

X6 diagnostic interface (connected to keyboard/USB)

Debugging and Parameters

debugging tool

Local: Keypad X400 keyboard

Computer: EASY Starter (Easy), Engineer (Advanced)

Accessories: USB Diagnostic Adapter E94AZCUS

Quick debugging steps

Restore factory settings (C00002/1)

Set motor parameters: rated speed/voltage/current/frequency

Set reference speed C00011=1500rpm

Set acceleration and deceleration time (C00012/C00013=2s)

Select control mode (C00007)

Save parameters (C00002/11)

Default control mode

Motor control: C00006=6 VFCplus linear V/f

Control source: C00007=10 terminal control

Core functions

Multi speed control

3 fixed frequencies: 40%/60%/80% (C00039)

Selected by DI1/DI2 combination

Motor potentiometer

Terminal control mode 11: DI3 speed up, DI4 speed down

Parameters: C00800~C00806 (upper and lower limits/acceleration and deceleration)

PID process control

Can be used for pressure/flow/tension closed loop

Enable: C00242, Parameters: P/I/D (C00222/C00223/C00224)

Speed limit and resonance shielding

Maximum/minimum speed limit (C00635/C00636)

Three speed prohibited zones (C00632/C00633)

safety function

STO safety torque shutdown: immediately cut off motor output after triggering

Status and Fault Diagnosis

LED status

DRV-RDY (green): standby/running

DRV-ERR (red): Fault

Common Faults

OC1~OC7: Overcurrent, Short Circuit, Grounding

OU: DC bus overvoltage

LU: DC bus undervoltage

OH1: Overheating of radiator (>90 ℃)

LP1: Motor phase loss

ID1: Motor parameter recognition failed

Fault reset

Keyboard: C00002/19

Terminal: RFR reset

Application scenarios

Conveyor belts, conveyors, extruders

Fan, water pump, metering equipment

Machine tools, vibration equipment, metallurgical machinery

Key issues

Question 1: What is the default motor control method for the 8400 StateLine C and how can basic debugging be quickly completed?

Answer: The default control method is VFCplus linear V/f control (C00006=6). Quick debugging steps:

Restore factory parameters (C00002/1=1);

Fill in the motor nameplate parameters (speed, voltage, current);

Assuming a reference speed of 1500rpm (C00011);

Set the acceleration and deceleration time to 2 seconds;

Select terminal control (C00007=10);

Save parameters (C00002/11=1).

Question 2: How does the digital terminal of the frequency converter achieve multi speed and motor potentiometer functions, and which control mode does it correspond to?

answer:

Multi speed (3-speed fixed frequency): Use control mode 10 (Terminals 0), DI1/DI2 combination to select 40%/60%/80% speed;

Motor potentiometer (speed up/down): Use control mode 11 (Terminals 11), DI3 speed up, DI4 speed down, without the need for an external potentiometer.

Question 3: What are the causes and solutions for OC1 (power section short circuit), OH1 (radiator overheating), and LU (undervoltage) faults in the frequency converter?

answer:

OC1 power short circuit: motor wire short circuit/poor grounding; Check the motor cables and wiring to ensure there is no ground short circuit.

OH1 radiator overheating: high ambient temperature, fan failure, air duct blockage; Clean the cooling system, check the fan, and lower the ambient temperature.

LU DC bus undervoltage: Input power phase loss/low voltage; Check if the three-phase power supply, circuit breaker, and input voltage are normal.