Chapter 5 Methods of Anomaly Diagnosis
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HES Series
5-5
Abnormal in OH1 hardware wire
Send back to manufacturer for repair
Abnormal in OH2 hardware wire
Send back to manufacturer for repair
Abnormal cc protection hardware
wire
Abnormal oc protection hardware
wire
Abnormal ov protection hardware
wire
Abnormal GFF protection
hardware wire
Turn off the power and restart. If the same
problem persists, send back to manufacturer
for repair
Open circuit of PG feedback
Check the PG feedback wiring
Stalled PG feedback
Abnormal PG slip
Check the PG feedback wiring
Check PI gain and the settings for
acceleration/deceleration are suitable
Send back to manufacturer for repair
Incorrect PG card information
Check if the settings of Pr.01-26 match those
in the installed PG card. If so, please send
back to manufacturer for repair
Abnormal installation or action of
JP18, the safety loop card/control
board pin
Check if the safety loop card is installed
correctly on the control board and if the
output action is normal
Check if pin JP18 is inserted into the wrong
position on the control board
Pressure is too high
Check if the pressure sensor is working
properly
Adjust pressure PI control Pr.00-20~00-37
Open circuit of pressure feedback
Check if the wiring of pressure sensor is
correct
Check if the pressure sensor signal is below
1V
Alarm reset
Once the issue that tripped the system and triggers the alarm is eliminated, one can resume the
system to normal status by pressing the Reset key on the panel (as shown in the figure) to set the
external terminal to "Anomaly reset command" and sending the command by turning on the
terminal or via communication. Before any anomaly alarm is resolved, make sure the operation
signal is at open circuit status (OFF) to avoid immediate machine running upon anomaly reset that
may case mechanical damage or personnel casualty.
Call 1(800)985-6929 for Sales
deltaacdrives.com
Call 1(800)985-6929 for Sales
deltaacdrives.com
