PY Manual
Copyright © 2006 SANYO DENKI
AMERICA
, Inc.
118
Maintenance
Normally, the only maintenance required is the removal of superficial dust and dirt
from the amplifier. To clean the amplifier, use low-pressure, oil-free compressed air.
Periodically inspect all cables, verifying they are free from damage and ensuring that
the connections to the amplifier are tight.
Investigate any unusual vibrations or noises immediately.
Troubleshooting
Upon the occurrence of an alarm, the 7-segment display on the amplifier will flash an
alarm code. The alarm code or bit will also be set on the output pins on CN1-43, 44, 45,
46 and reported in the alarm trace mode of the Remote Operator and PY Software.
Table 21 shows the alarm codes that may appear on a drive or monitoring device.
Table 21: Amplifier Alarm Codes
7-Segment
Abbreviation
Description
1 OC
Overcurrent
2 OL
Overload
3 AOH
Amplifier
Overheating
5 OV
Overvoltage
6 OS
Overspeed
7
PE
Control Power Supply Error
8
DE
Detector Error – Encoder Error
9
MPE
Bus power (R, S, and T) Error
A FP
Fail Phase - bus power (R, S, and T) is missing a
phase
C SE
Speed
Control
Error
D OVF
Position
Deviation Overflow
E
EXOH
External Regen Resistor Overheating
F DSPE
DSP
Error
H
RGOH
Internal Regen Resistor Overheating
J RGOL
Resistor
Overload
P MEME
Memory
Error
U
AEE
Absolute Encoder Error (Not available at this time)
No Light
CPUE
CPU Error
The table below outlines possible causes and corrective actions for each alarm.
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