Delta VFD11AMS21AFSHA, User Manual

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Chapter 14 Error Codes

MS300
(High Speed Model)
14-7
ID No.
Display Descriptions
77
S2~DCM internal hardware detect error.
Corrective Actions

Check wiring of S2 terminal.
 Reset emergency switch (ON: activated) and re-power.
 Check the input voltage to maintain at least 11 V.
 Check the wiring of S2 and +24V terminal.
 After make sure the wiring is correct, if STL2 fault still exists after
re-power, please contact Delta.
78
S1~DCM & S2~DCM internal hardware detect error.
Corrective Actions
 After make sure the wiring is correct, if STL3 fault still exists after
re-power, please contact Delta.
79 U-phase short circuit
80 V-phase short circuit
81 W-phase short circuit
82
Output phase loss 1 (Phase U)
Output phase loss 2 (Phase V)
Output phase loss 3 (Phase W)
Corrective Actions
 Check the motor internal wiring, change the motor if there is still error.
 Check the cable status.
 Choose three phases motor, and make sure the capacity of drive and
motor match.
 Check the cable of control board.

Check three phases current is balanced or not. If it is balanced and OPHL
fault still exists, please return to the factory.
83
84
87 Over load protection at low frequency
101
CANopen guarding error.
Corrective Actions
 Increase guarding time (Index 100C).

Check the communication wiring and grounding. 90 degrees wiring layout
or separation from main circuit is suggested to prevent interference.
 Make sure the communication wiring is serial.
 Use dedicated CANopen cable and install terminating resistor.
 Check the status of communication cable or change new cable.