Yaskawa 1000 Series Drive Option - Open Collector Type PG - Manual (Page 31)

7 Troubleshooting
YASKAWA ELECTRIC TOBP C730600 36C 1000-Series Option PG-B3 Installation Manual 31
PG encoder is disconnected or is
not wired properly, or the PG
option or PG encoder are
damaged. • Rewire the PG encoder and make sure all wiring including shielded wiring is
properly connected.
• If the problem continues after cycling power, replace the PG option or the PG
encoder.
Digital Operator Display Fault Name
oFA00 Non-Compatible Option connected to drive port CN5-A
Cause Possible Solution
Non-compatible option
connected to drive port CN5-A. Use only compatible options. Connect PG-B3 to CN5-B or CN5-C. For other
option, refer to the Installation Manual for that option.
Digital Operator Display Fault Name
oFb00 Non-Compatible Option connected to drive port CN5-B
Cause Possible Solution
Non-compatible option
connected to drive port CN5-B. Use only compatible options. For other option, refer to the Installation Manual for
that option.
Digital Operator Display Fault Name
oFb01 Option Connection Error at drive port CN5-B
Cause Possible Solution
Option at drive port CN5-B was
changed during run.
Switch the power off and reconnect the option.
Digital Operator Display Fault Name
oFC01 Option Connection Error at drive port CN5-C
Cause Possible Solution
Option at drive port CN5-C was
changed during run.
Switch the power off and reconnect the option.
Digital Operator Display Fault Name
oS
Overspeed
The motor speed feedback exceeded the F1-08 setting.
Cause Possible Solution
Overshoot is occurring.
• Increase the settings for C5-01 (Speed Control Proportional Gain 1) and reduce
C5-02 (Speed Control Integral Time 1).
• Enable Feed Forward Control and perform Inertia Auto-Tuning in CLV.
Incorrect speed feedback scaling
when terminal RP is used as
speed feedback input in V/f
control.
• Set H6-02 to the value of the speed feedback signal frequency when the motor
runs at the maximum speed.
• Adjust the input signal using parameters H6-03 through H6-05.
Incorrect PG encoder pulse
number set.
Check and correct parameter F1-01.
Inappropriate parameter settings.
Check the setting for the overspeed detection level and the overspeed detection
time (F1-08 and F1-09).