Chapter 8│Troubleshooting; Alarm And Fault Displays - LiteOn EVO600021S0D2E20F User Manual

8.1 Alarm and Fault Displays

Table 8.1 Alarm and Fault Displays, Causes, and Possible Solutions
Keypad
Fault Name
Display
EF0
External Fault
EF1 to
( Input Terminal S1 to
EF6
S6 )
PID Feedback High
PID feedback input is
greater than the
FbH
detection level set to
b5-22 for longer than
the detection time set to
b5-23
PID Feedback Low
When the PID feedback
detection is enabled in
b5-11, a FbL will be
FbL
triggered while the PID
feedback falls below the
level set to b5-12 for
longer than the time set
to b5-13.
Heatsink Overheat
oH
Chapter 8│Troubleshooting
1. An external device
tripped an alarm
2. Incorrect wiring
3. Multi-function input
wiring is not correct
1. b5-22 andb5-23
inappropriate setting
2. PID feedback wiring
incorrect
3. Feedback sensor
malfunction
4. Feedback input circuit
malfunction
1. Inappropriate setting in
b5-12 and b5-13
2. Incorrect PID feedback
wiring
3. Feedback sensor
malfunction
4. Incorrect feedback input
circuit
1. Ambient temperature is
too high
Cause
Retain
1. Remove the cause of the
external fault then reset the
multi-function input.
2. Confirm if the signal lines is
properly connected to the
terminals assigned for external
fault detection (E1-口口= 23 to
38)
3. Confirm if E1-口口=23 to 38 is
set to the unused terminals.
1. Confirm b5-22 and b5-23
settings
2. Correct the wiring
3. Replace the sensor if it is
damaged
4. Replace the PCB or drive.
Contact the local distributor.
1. Correct b5-12 and b5-13
settings
2. Correct the wiring
3. Replace the sensor if it is
damaged
4. Contact the local distributor to
replace the board or the drive.
1.Check the temperature
surrounding the drive
155
Possible Solution