Instruction manual
Table Of Contents
- Preface
- Safety Precautions
- Table of Contents
- Warnings, Cautions and Conformity
- Chapter 1 Drive Model Identification
- Chapter 2 Mounting and Wiring the Inverter
- Chapter 3 Operation using the Keypad
- Chapter 4 Function Codes / Parameters
- Chapter 5 Check Motor Rotation and Direction
- Chapter 6 Speed Reference Command Configuration
- Chapter 7 Operation Method Configuration (Run / Stop)
- Chapter 8 Motor and Application Specific Settings
- Chapter 9 Using PID Control for Constant Flow / Pressure Applications
- Chapter 10 Troubleshooting
- 10.1 Protective Functions
- 10.2 Before Proceeding with Troubleshooting
- 10.3 If Neither an Alarm Code Nor "Light Alarm" Indication Appears on the LED Monitor
- 10.4 If an Alarm Code Appears on the LED
- 10.5 If the “Light Alarm” Indication Appears on the LED Monitor
- 10.6 If an Abnormal Pattern Appears on the LED Monitor except Alarm Codes and "Light Alarm" Indication
- 10.7 If the Inverter is Running on Single-Phase Power
- Chapter 11 Specifications
2-29
Never connect power supply wires to the EQ7 drive output terminals U, V, and W. Doing so and turning
the power ON damages the inverter.
Be sure to connect the grounding wires of the EQ7 drive and the motor to the ground electrodes.
Otherwise, an electric shock could occur.
Check the following before powering on the EQ7 drive.
1) Check that the wiring is correct. Especially check the wiring to the EQ7 drive input terminals L1/R, L2/S
and L3/T and output terminals U, V, and W. Also check that the grounding wires are connected to the
grounding terminals ( G) correctly. See Figure 2.23.
2) Check the control circuit terminals and main circuit terminals for short circuits or ground faults.
3) Check for loose terminals, connectors and screws.
4) Check that the motor is separated from mechanical equipment.
5) Make sure that all switches of devices connected to the inverter are turned OFF. Powering on the
inverter with any of those switches being ON may cause an unexpected motor operation.
6) Check that safety measures are taken against runaway of the equipment. Also ensure that all safety
guards are in place to prevent human injury.