Delta CT2000 Series, User Manual, Page: 404 / 634

Chapter 14 Fault Codes and Descriptions

CT2000 Series
14-7
ID* Fault Name Fault Descriptions Corrective Actions
60
bF
Braking fault
Fault
Brake resistor fault
If the fault code is still displayed on the keypad after
pressing “RESET” key, please return to the factory.
61
ydc
Y-delta connect
Fault
Y-connection/ ∆ -connectio
n switch error
1. Check the wiring of the Y-connection/ ∆ -connection
2. Check the parameters settings
62
dEb
Dec. Energy back
Fault
When Pr.07-13 is not set
to 0 and momentary
power off or power cut, it
will display dEb during
accel./decel. stop.
1. Set Pr.07-13 to 0
2. Check if input power is stable
63
oSL
Over slip error
Fault
It will be displayed when
slip exceeds Pr.05-26
setting and time exceeds
Pr.05-27 setting.
1. Check if motor parameter is correct (please
decrease the load if overload
2. Check the settings of Pr.05-26 and Pr.05-27
64
ryF
MC Fault
Fault
Electric valve switch error when executing Soft Start.
(This warning is for frame E and higher frame of AC drives)
Do not disconnect RST when drive is still operating.
65
PGF5
PG HW Error
Fault
Hardware error of PG Card
Check if PG Card is insert to the right slot and parameter settings for encoder are
accurate.
68
SdRv
SpdFbk Dir Rev
Fault
Rotaing direction is different from the commanding direction deteced by the
sensorless.
Solution
Verify if the parameter setting of the motor drive is correct
Increase the estimator's bandwidth and verify if parameters relating to the sensorless
are correct.
69
SdOr
SpdFbk over SPD
Fault
Overspeed rotation detected by the sensorless
Solution
Verify if the parameter setting of the motor drive is correct
Increase the estimator's bandwidth and verify if parameters relating to the sensorless
are correct.
Verify if the gains of the speed circuit is reasonable.
70
SdDe
SpdFbk deviate
Fault
Big difference between the rotating speed and the command deteced by the
sensorless
Solution
Verify if the parameter setting of the motor drive is correct
Increase the estimator's bandwidth and verify if parameters relating to the sensorless
are correct.
Verify if the gains of the speed circuit is reasonable.
73
S1
S1-emergy stop
Fault
Emergency stop for external safety