Power Electronics SD700 User Manual

POWER ELECTRONICS
SD700FR SERIES
FAULT MESSAGES. DESCRIPTIONS AND ACTIONS
81
6.1.4. List and Solutions of Rectifier bridge faults
DISPLAY
POSSIBLE CAUSE
ACTIONS
R1 I LIM FLT
The input current measure signal has been lost.
Check the current sensors are correctly fastened.
The input voltage measure signal has been lost.
Check the voltage sensors are correctly fastened.
Incorrect setting of the current control loop.
Readjust the parameters G22.10.5 and G22.10.6.
A voltage dip has occurred.
Try to reset the fault. If the fault persists contact
Power Electronics for technical service.
R2 V LIM FLT
Deceleration ramp too high (parameters „G5.2
DECEL1‟ and „G5.4 DECEL2‟) or rectifier‟s “PID
Vdc” parameters are too slow.
Decrease deceleration ramps. If the fault persists
contact Power Electronics for technical service.
R3 SOFT CHARG
Softcharge contactor or resistors failure.
Try to reset the fault. Disconnect and re-connect
again the input power. If the fault persists contact
Power Electronics for technical service.
R4 OVERLOAD R+
R5 OVERLOAD R-
R6 OVERLOAD S+
R7 OVERLOAD S-
R8 OVERLOAD T+
R9 OVERLOAD T-
R10 MULTI O.L.
Rectifier bridge IGBTs desaturation. See possible
causes for faults F4-F9.
Check if there is possible input wiring faults. If the
fault persists after disconnecting input wires
request technical assistance.
R11 VIN LOST
Input power phase lost.
Check the input wiring is correctly installed.
Input voltage measure has been lost.
Check the voltage sensors are correctly fastened.
R12 IMB V IN
Imbalance voltage input.
Possible internal wiring disconnection. Check the
input wiring is correctly installed and the status of
the input power supply is correct.
R13 V LOST CAP
Voltage lost in the capacitor of the LCL filter.
Possible internal wiring disconnection. Disconnect
and re-connect again the input power. If the fault
persists contact Power Electronics for technical
service.
R14 VBUS LOST
DC bus voltage signal is lost.
R15 SfCh
CONTACT
Feedback signal from the softcharge contactor is
lost.
Feedback is wrong wired.
Check that voltage signal connector is correctly
fastened. If the fault persists contact Power
Electronics for technical service.
When the fault is produced when the VFD is power
supplied, stop, check the contactor and start.
R16 LCL TEMP
The fans of the LCL filter zone are faulty.
Check that the fans rotate smoothly and there isn‟t
any obstacle.
R17 VBUS LOW
Low bus voltage detected.
Input voltage is lost and the electronics power
supply keep powered
R18 FIBR COMMS
Fiber optic cable is interrupted.
Check fiber optic cable about visual damages.
R19 I IMB IN
Unstable grid.
Check the parameter “G22.11.7 I Imb” value. If the
fault persists contact Power Electronics technical
service.
Wiring fault.
R20 GRND INPUT
Wiring fault.
Check power wiring about visual damages.
R21 I LIMIT IN
Input shortcircuit.
Check the parameter “G22.11.5 I lim REC” value
and the load.
Wiring fault.
Circuit fault.
R22 IGBT TMP
See possible causes for F34 fault.
See possible solutions described for F34 fault.

Power Electronics SD700 Specifications

General

Brand	Power Electronics
Model	SD700
Category	Inverter
Language	English