Honeywell HVAC232 Series Applications Manual page 63

Code Parameter
P1.24 I/f start enable
P1.25 I/f start frequency
reference limit
P1.26 I/f start current reference
P1.27 Voltage limiter enable
NOTE:
These parameters are shown, when P16.2 = 0.
Application manual HVAC232/402 | Document 27-652 | Issue ENG06 | 2019-08-07
Table 22. Motor settings
Min Max Unit
0 1
1 100 %
0 100.0 %
0 1
Default ID Note
0 534 The I/f Start function is typically used with perma-
nent magnet motors (PM) to start the motor with
constant current control. This is useful with high
power motors in which the resistance is low and
the tuning of the U/f curve difficult.
Applying the I/f Start function may also prove
useful in providing sufficient torque for the motor
at startup.
0 = Disabled
1 = Enable
10 535 Output frequency limit below which the defined I/f
start current is fed to motor.
80.0 536 The current fed to the motor when the I/f start
function is activated.
1 1079 Voltage limiter function addresses problem with
very high DC-link voltage ripple with 1-phase
drives when fully loaded. Very high ripple in DC link
voltage will transform to high current and torque
ripple, which can disturb some users.
Voltage limiter function limits maximum output
voltage to bottom of DC-voltage ripple. This reduc-
es current and torque ripple, but decreases max-
imum output power since voltage is limited and
more current is needed.
0 = Disabled
1 = Enable
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