Yaskawa GPD503 Drive - Manual (Page 113)

Section 7. TROUBLESHOOTING
If the GPD 503 malfunctions, locate the cause and take corrective action by following the
flowcharts given in this section.
A. TROUBLESHOOTING MOTOR SYMPTOMS
Motor Will Not Run ..................................................................................Chart 7.1
Motor Stalls During Acceleration .............................................................Chart 7.2
B. TROUBLESHOOTING FOR FAULT CONDITIONS
Overvoltage (ou).......................................................................................Chart 7.3
Blown Fuse (FU) ......................................................................................Chart 7.4
Overcurrent (oC)......................................................................................Chart 7.5
Overload (oL) ...........................................................................................Chart 7.6
Undervoltage (Uu)....................................................................................Chart 7.7
GPD 503 Overheated (oH) ........................................................................Chart 7.8
Control Function Error (CPF
).............................................................Chart 7.9
Fault Signal Input (EF ) .........................................................................Chart 7.10
WARNING
Oscilloscope chassis may be at voltages potentially hazardous to
life if not properly grounded. If oscilloscope is used to measure
high voltage waveforms, use only a dual channel oscilloscope in the
differential mode with X100 probes. Always connect oscilloscope
chassis to earth ground.
WARNING
Voltages dangerous to life exist when equipment is open and
energized. Do not work alone.
CAUTION
To prevent equipment damage always remove incoming three-phase
power before test equipment is connected or removed.
CAUTION
If the GPD 503 Control PCB is replaced, ALL GPD 503 CONSTANTS
MUST BE REPROGRAMMED for your application.
7-1