Delta VFD300C43S-HS User Manual page 441

 When the speed controller signal is abnormal, if time exceeds the detection time for the encoder
feedback fault (Pr. 10-09), the feedback fault occurs. Refer to Pr. 10-08 for the encoder
feedback fault treatment.
Encoder / Speed Observer Stall Level

Settings
 This parameter determines the maximum encoder feedback signal allowed before a fault occurs.
The maximum operation frequency for Pr.01-00 = 100%
Detection Time of Encoder / Speed Observer Stall

Settings
Encoder / Speed Observer Stall Action

Settings
 When the drive output frequency exceeds the encoder/ speed observer stall level (Pr. 10-10),
the drive start to count the time. When the error time exceeds the encoder/ speed observer stall
detection time (Pr. 10-11), the drive implements the encoder stall treatment.
Encoder / Speed Observer Slip Range

Settings
 Detection Time of Encoder/ Speed Observer Slip
Settings
Encoder / Speed Observer Stall and Slip Error Action

Settings
 This parameter acts on the settings for Pr. 10-13–Pr. 10-15:
When the value of (rotation speed – motor frequency) exceeds the Pr.10-13 setting, and the
detection time exceeds Pr.10-14; the drive starts to count the time. If the detection time exceeds
Pr.10-14, the encoder feedback signal error occurs. Refer to Pr.10-15 for the encoder stall and
slip error treatment.
0–120%
0: No function
0.0–2.0 sec.
0: Warn and continue operation
1: Warn and ramp to stop
2: Warn and coast to stop
0–50%
0: Disable
0.0–10.0 sec.
0: Warn and continue operation
1: Warn and ramp to stop
2: Warn and coast to stop
Chapter 12 Description of Parameter SettingsC2000-HS
12.1-10-4
Default: 115
Default: 0.1
Default: 2
Default: 50
Default: 0.5
Default: 2