Instruction manual
Table Of Contents
- SAFETY INSTRUCTIONS
- CONTENTS
- CHAPTER 1 OUTLINE
- CHAPTER 2 INSTALLATION AND WIRING
- CHAPTER 3 OPERATION/CONTROL
- CHAPTER 4 PARAMETERS
- CHAPTER 5 PROTECTIVE FUNCTIONS
- 5.1 Errors (Alarms)
- 5.2 Troubleshooting
- 5.2.1 Motor remains stopped.
- 5.2.2 Motor rotates in opposite direction.
- 5.2.3 Speed greatly differs from the setting.
- 5.2.4 Acceleration/deceleration is not smooth.
- 5.2.5 Motor current is large.
- 5.2.6 Speed does not increase.
- 5.2.7 Speed varies during operation.
- 5.2.8 Operation mode is not changed properly.
- 5.2.9 Operation panel (FR-DU04) display is not provided.
- 5.2.10 POWER lamp is not lit.
- 5.2.11Parameter write cannot be performed
- 5.3 Precautions for Maintenance and Inspection
- CHAPTER 6 SPECIFICATIONS
- CHAPTER 7 OPTIONS
- APPENDICES
- REVISIONS
INSTALLATION AND WIRING
17
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5
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Connecting the control circuit to a power supply separately from the main circuit
If the magnetic contactor (MC) in the inverter power supply is opened when the protective circuit is operated,
the inverter control circuit power is lost and the alarm output signal cannot be kept on. To keep the alarm
signal on terminals R1 and S1 are available. In this case, connect the power supply terminals R1 and S1 of
the control circuit to the primary side of the MC.
•
••
• Model M4500-001 to 100
<Connection procedure>
MC
1) Loosen the upper screws.
2) Remove the lower screws.
3) Pull out and remove the jumper.
4) Connect the separate power supply
cables for control circuit to the
upper terminals (R1, S1). (Note 4)
Power supply terminal
block for control circuit
Main power supply
Power supply terminal
block for control circuit
RST
R1 S1
Note: 1. When the main circuit power (R, S, T) is on, do not switch off the control power (terminals R1,
S1). Otherwise the inverter may be damaged.
2. When using a separate power supply, the jumpers across R-R1 and S-S1 must be removed.
Otherwise the inverter may be damaged.
3. For a different power supply system which takes the power of the control circuit from other than
the primary side of the MC, the voltage should be equal to the main circuit voltage.
4. The power supply cables must not be connected to the lower terminals. If connected, the inverter
may be damaged.
5. Entering the start signal with power supplied to only the R1 and S1 terminals will result in an error
display (E.OC1).