Operating Instructions

Fault Codes
Digital Keypad
332 | 443
Fault treatment parameter
Pr.09-02
0: Warn and continue operation
1: Fault and ramp to stop
2: Fault and coast to stop
3: No warning, no fault, and continue operation
Reset method
Manual reset
Reset condition
Immediately reset
Record
Yes
Cause
Corrective Actions
The upper unit does not transmit the
communication command within Pr.09-03
setting time.
Check if the upper unit transmits the communication command within the setting time for Pr.09-03.
Malfunction caused by interference
Verify the wiring and grounding of the communication circuit. Separate the communication circuit
from the main circuit, or wire in 90 degree for effective anti-interference performance.
Different communication setting from the
upper unit
Check if the setting for Pr.09-02 is the same as the setting for the upper unit.
Disconnection or bad connection of the
cable
Check the cable and replace it if necessary.
ID*
Display on LCD Keypad
Fault Name
Fault Descriptions
61
Y-connection /
Δ-connection switch error
(ydc)
An error occurs when Y-Δ switches
Action and Reset
Action level
ydc occurs when the confirmation signals of Y-connection and Δ-connection are conducted at the
same time.
If any of confirmation signals is not conducted within Pr.05-25, ydc occurs.
Action time
Pr.05-25
Fault treatment parameter
N/A
Reset method
Manual reset
Reset condition
Can be reset only when the confirmation signal of Y-connection is conducted if it is Y-connection,
or when the confirmation signal of Δ-connection is conducted if it is Δ-connection.
Record
Yes
Cause
Corrective Actions
The electromagnetic valve operates
incorrectly during Y-Δ switch.
● Check if the electromagnetic valve works normally.
● If not, replace it.
Incorrect parameter setting
Check if related parameters are all set up and set correctly.
The wiring of Y-Δ switch function is
incorrect
Check the wiring.