Danfoss VLT AutomationDrive FC 301 Programming Manual page 166

VLT AutomationDrive FC 301/302
Programming Guide
Parameter 4-56 Warning Feedback Low
Table 296: Parameter 4-56 Warning Feedback Low
4-56 Warning Feedback Low
Default value: Size related
Conversion index: -3
Enter the lower feedback limit. When the feedback drops below this limit, the display reads Feedb
programmed to produce a status signal on terminal 27 or 29 (FC 302 only) and on relay output 01 or 02 (FC 302 only).
Parameter 4-57 Warning Feedback High
Table 297: Parameter 4-57 Warning Feedback High
4-57 Warning Feedback High
Default value: Size related
Conversion index: -3
Enter the upper feedback limit. When the feedback exceeds this limit, the display reads Feedb
grammed to produce a status signal on terminal 27 or 29 (FC 302 only) and on relay output 01 or 02 (FC 302 only).
Parameter 4-58 Missing Motor Phase Function
Table 298: Parameter 4-58 Missing Motor Phase Function
4-58 Missing Motor Phase Function
Default value: Size related
Conversion index: –
The function detects missing motor phase while the motor is running. Shows alarms 30, 31, 32 if a motor phase is missing. Enable
this function to protect the application and motor from malfunctioning if a motor phase is missing.
Op- Name Description
tion
[0] Disabled The drive does not issue a missing motor phase alarm.
[1] Trip 100 The drive performs a scan for 100 ms to detect missing motor phase. When a missing motor phase is de-
ms tected, the drive trips. This selection is recommended when the motor is running at a speed of 10 Hz and
above.
[2] Trip 1000 The drive performs a scan for 1000 ms to detect missing motor phase. When a missing motor phase is
ms detected, the drive trips. This selection is recommended when the motor is running at a low speed of 1 Hz
and above.
[3] Trip 100
ms 3ph de-
tec.
Only available in FC 302 in flux closed loop. To activate for U/f and VVC+. set parameter 4-59 Motor Check
at Start to [0] On.
166 | Danfoss A/S © 2022.12
Parameter type: Range, setting in par. 4-57 - -999999.999 Referen-
ceFeedbackUnit
Data type: Int32
Parameter type: Range, par 4-56 - 999999.999 ReferenceFeedback-
Unit
Data type: Int32
Parameter type: Option
Data type: Uint8
High
Setup: All setups
Change during operation: True
N O T I C E
Parameter Descriptions
Setup: All setups
Change during operation: True
. The signal outputs can be
Low
Setup: All setups
Change during operation: True
. The signal outputs can be pro-
AU275636650261en-000101 / 130R0334