11-1
11-1 Error Processing
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
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-KNxL-ML2 (50 to 400 W)
: Single-phase 100 to 120 VAC (85 to 132 V) 50/60 Hz
R88D-KNxH-ML2 (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-KNxF-ML2 (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-KNxL-ML2 (50 to 400 W)
: Single-phase 100 to 120 VAC (85 to 132 V) 50/60 Hz
R88D-KNxH-ML2 (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-KNxF-ML2 (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 Servo Drive and using
the Operation keys.
When an alarm has occurred
Check the alarm display that displays (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.11-15)" for details.