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11-1
11-1 Error Processing
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
11
Error and Maintenance
11-1 Error Processing
Preliminary Checks When a Problem Occurs
This section explains the preliminary checks and analytical softwares required to determine the
cause of a problem if one occurs.
Checking the Power Supply Voltage
Check the voltage at the power supply input terminals.
Main circuit power supply input terminal (L1, L2, L3)
R88D-KTxL
(50 to 400 W)
: Single-phase 100 to 115 VAC (85 to 127 V) 50/60 Hz
R88D-KTxH
(100 W to 1.5 kW) : Single-phase 200 to 240 VAC (170 to 264 V) 50/60 Hz
(750 W to 1.5 kW) : 3-phase 200 to 240 VAC (170 to 264 V) 50/60 Hz
(2 to 5 kW)
: 3-phase 200 to 230 VAC (170 to 253 V) 50/60 Hz
R88D-KTxF
(750 W to 5 kW)
: 3-phase 380 to 480 VAC (323 to 528 V) 50/60 Hz
Control circuit power supply input terminal (L1C, L2C)
R88D-KTxL
(50 to 400 W)
: Single-phase 100 to 115 VAC (85 to 127 V) 50/60 Hz
R88D-KTxH
(100 W to 1.5 kW) : Single-phase 200 to 240 VAC (170 to 264 V) 50/60 Hz
(2 to 5 kW)
: Single-phase 200 to 230 VAC (170 to 253 V) 50/60 Hz
R88D-KTxF
(750 W to 5 kW)
: 24 VDC (21.6 to 26.4 V)
If the voltage is out of this range, there is a risk of operation failure, so be sure that the power
supply is correct.
Check the voltage of the sequence input power supply. (+24 VIN terminal (CN1 pin 7))
Within the range of 11 to 25 VDC.
If the voltage is out of this range, there is a risk of operation failure. Be sure that the power supply
is correct.
Checking Whether an Alarm Has Occurred
Make an analysis using the 7-segment LED display area in the front of the driver and using the
Operation keys.
When an alarm has occurred
…
Check the alarm display that is displayed (xx) and make an analysis based on the alarm that is indicated.
When an alarm has not occurred
…
Make an analysis according to the error conditions.
In either case, refer to "11-4 Troubleshooting" (P.11-9) for details.
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