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Honeywell HVAC232 Series Applications Manual page 126

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Underload protection:
Field weakening area load
The torque limit can be set between 10.0 - 150.0 % × T
This parameter gives the value for the minimum torque allowed when the
output frequency is above the field weakening point. If you change parame-
ter P1.4 (Motor nominal current) this parameter is automatically restored to
the default value.
Uunderload protection:
time limit
This time can be set between 2.0 and 600.0 s.
This is the maximum time allowed for an underload state to exist. An inter-
nal up/down counter counts the accumulated underload time. If the un-
derload counter value goes above this limit the protection will cause a trip
according to parameter P12.6. If the drive is stopped the underload counter
is reset to zero. See figure below:
Underload time counter
Trip area
Par. 12.16
Underload
No underload
Fig. 64. Underload counter
Application manual HVAC232/402 | Document 27-652 | Issue ENG06 | 2019-08-07
.
n Motor
Trip/warning
Par. 12.6
Time
Input phase fault
0:
No action
1:
Alarm
2:
Fault: Stop function
3:
Fault: Coast
Motor temperature memory mode
0 =
disabled
1 =
constant mode
2 =
last value mode
126

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