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
1-7
Molded Case Circuit Breaker (MCCB) and Residual-
Current-Operated Protective Device (RCD)/Earth
Leakage Circuit Breaker (ELCB)
Power
supply
voltage
Nominal
applied
motor
(HP)
Inverter type
CT/VT
mode
Rated current of
MCCB and
RCD/ELCB (A)
Three
-
phase
Single-
phase
w/ DCR
w/o
DCR
460 V
125
50
EQ7-4125-C
VT
200
--
EQ7-4150-C
CT
150
CT/VT
250
60
EQ7-4200-C
CT
200
CT/VT
300
EQ7-4250-C
CT
250
75
CT/VT
350
EQ7-4300-C
CT/VT
500
300
100
EQ7-4350-C
CT/VT
350
EQ7-4450-C
CT
600
350
-
450
125
VT
400
EQ7-4500-C
CT
800
450
-
-
150
EQ7-4600-C
CT
Power
supply
voltage
Nominal
applied
motor
(HP)
Inverter type
CT/VT
mode
Rated current of
MCCB and
RCD/ELCB (A)
Three-
phase
Single-
phase
w/ DCR
w/o
DCR
460 V
500
150
EQ7-4500-C
VT
800
--
-
EQ7-4600-C
CT
-
150
EQ7-4700-C
CT
600
200
EQ7-4600-C
VT
1200
-
EQ7-4700-C
CT
-
200
EQ7-4800-C
CT
700
EQ7-4700-C
VT
-
EQ7-4800-C
CT
800
250
VT
EQ7-4900-C
CT
900
300
VT
1400
EQ7-41000-C
CT
1000
400
VT
1600
If no zero-phase current (earth leakage current) detective device such as a ground-fault relay is installed in the
upstream power supply line in order to avoid the entire power supply system's shutdown undesirable to factory
operation, install a residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB)
individually to inverters to break the individual inverter power supply lines only.
Otherwise, a fire could occur.
(6) Magnetic contactor (MC) in the inverter input (primary) circuit
Avoid frequent ON/OFF operation of the magnetic contactor (MC) in the input circuit; otherwise, the inverter failure
may result. If frequent start/stop of the motor is required, use FWD/REV terminal signals or the / keys on the
inverter's keypad.
The frequency of the MC's ON/OFF should not be more than once per 30 minutes. To assure 10-year or longer
service life of the inverter, it should not be more than once per hour.