Honeywell HVAC232 Series, Applications Manual

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Application manual HVAC232/402 | Document 27-652 | Issue ENG06 | 2019-08-07 125
Stall current
The current can be set to 0.0…2 × I
Nunit
. For a stall stage to occur, the cur-
rent must have exceeded this limit. If parameter P1.7 Motor current limit is
changed, this parameter is automatically calculated to 90% of the current
limit. See figure below:
NOTE:
In order to guarantee desired operation, this limit must be set
below the current limit.
f
I
P12.11
P12.13 0.1 … 320 Hz
0.0 … 2 × I
N
unit
Stall area
Fig. 62. Stall current
Stall time
This time can be set between 0.00 and300.00s.
This is the maximum time allowed for a stall stage. The stall time is counted
by an internal up/down counter.
If the stall time counter value goes above this limit the protection will cause
a trip (see parameter P12.5). See figure below:
Par. 12.12
Trip area
Stall time counter
Trip/warning
Par. 12.5
Time
Stall
No stall
Fig. 63. Stall time calculation