Delta Electronics MVF2000 Series, Product Manual

Page: 53 / 136

49

Speed setting analog loss is not detected before running. If the sampling value of the
analog given by the speed is less than the lower threshold or over than the upper
threshold
，
speed setting analog loss fault is generated
Table 4-41 Encoder abnormal
ID Parameter Min Max Unit Default Description
P1121
Fault action
configuration: SVC
Encoder Abnormal
0 8 2
P1144
Fault action
configuration: SLVC
Encoder Abnormal
0 8 0
P1271
Fault duration time:
Encoder Abnormal
0 65535 ms 200
P0398
Speed error
threshold for
encoder fault
0 100 % 5
P1083
Loss ratio threshold
of encoder fault
0 100 % 10
P1084
SVC switch SLVC
enable for encoder
fault
0 1 0
0-Disable
1-Enable

When the consecutive lost signal of encoder is higher than speed error threshold for
encoder fault(P0398), or the error between encoder speed and estimated speed is
higher than P398, or the encoder signal loss rate per cycle is higher than loss ratio
threshold of encoder fault(P1083), encoder abnormal fault is generated.
Table 4-42 External fault
ID Parameter Min Max Unit Default Description
P1124
Fault action
configuration:
External Fault
0 8 2
P1274
Fault duration time:
External Fault
0 65535 ms 0

Connect external fault signal wiring to DI of PLC. The switching node should be normal
open. While the switching node is closed, external fault is generated.
Table 4-43 Current sensor power fault
ID Parameter Min Max Unit Default Description
P1125
Fault action
configuration:
Current Sensor
Power Fault
0 8 6
P1275
Fault duration time:
Current Sensor
Power Fault
0 65535 ms 0

If LEM power board is not energized, current sensor power fault is generated.