Danfoss VLT AutomationDrive FC 301 Programming Manual page 111

Parameter Descriptions
4-53 Warning Speed High
Range: Function:
produce a status signal on
terminals 27 or 29 and on relay
outputs 01 or 02. Refer to
Illustration 3.33.
4-54 Warning Reference Low
Range: Function:
-999999.99 [ -999999.999 Enter the lower reference limit.
9 - par. 4-55 ] When the actual reference drops
*
below this limit, the display
indicates Ref
can be programmed to produce a
status signal on terminal 27 or 29
(FC 302 only) and on relay output
01 or 02 (FC 302 only).
4-55 Warning Reference High
Range: Function:
999999.999 [ par. 4-54 - Enter the upper reference limit.
999999.999 ] When the actual reference exceeds
*
this limit, the display reads Ref
The signal outputs can be
programmed to produce a status
signal on terminal 27 or 29 (FC 302
only) and on relay output 01 or 02
(FC 302 only).
4-56 Warning Feedback Low
Range: Function:
Size [ -999999.999 Enter the lower feedback limit.
related - par. 4-57 When the feedback drops below
*
Reference- this limit, the display reads
FeedbackUnit] 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).
4-57 Warning Feedback High
Range: Function:
Size [ par. 4-56 - Enter the upper feedback limit.
related 999999.999 When the feedback exceeds this
*
Reference- limit, the display reads Feedb
FeedbackUnit] The signal outputs can be
programmed to produce a status
signal on terminal 27 or 29 (FC 302
only) and on relay output 01 or 02
(FC 302 only).
M0013101
Programming Guide
. The signal outputs
LOW
.
high
. The signal outputs can be
Low
.
High
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4-58 Missing Motor Phase Function
Option: Function:
NOTICE
This parameter cannot be
adjusted while the motor is
running.
The function detects missing motor
phase while the motor is running.
Shows alarms 30, 31, 32 in the
event of missing motor phase.
Enable this function to protect the
application and motor from
malfunctioning in the event of a
missing motor phase.
[0] Disabled The frequency converter does not
issue a missing motor phase alarm.
[1] Trip 100 ms The drive performs a scan for
100 ms to detect missing motor
phase. When a missing motor
phase is detected, the drive trips.
This selection is recommended
when the motor is running at a
speed of 10 Hz and above.
[2] Trip 1000 ms The drive performs a scans for
1000 ms to detect missing motor
phase. When a missing motor
phase is detected, the drive trips.
This selection is recommended
when the motor is running at a low
speed ranging from 1 - 10 Hz.
[3] Trip 100ms This option is relevant for
3ph detec. applications where the motor load
and motor currents are very low,
such as lowering a lift. Selecting
this option allows to prevent false
motor phase detection due to low
currents. The drive performs a scan
for 100 ms to detect missing motor
phases.
NOTICE
Only available for FC 302 flux
closed loop.
[5] Motor Check This option allows disconnection of
the motor with a service switch
without issuing an alarm. The drive
coasts and automatically resumes
operation when the motor is
reconnected.
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