Honeywell SmartVFD HVAC MR4 User Manual page 131

Honeywell • 59
3.5.14.6 Pressure loss compensation
Code Parameter
M3.12.6.1 Enable setpoint 1
Setpoint 1 max com-
M3.12.6.2
pensation
M3.12.6.3 Enable setpoint 2
Setpoint 2 max com-
M3.12.6.4
pensation
3.5.14.7 PID1 Soft Fill
The Soft Fill function is used, for example, to avoid pressure pikes, the so-called "water ham-
mers" in pipes when the drive starts to regulate. If not controlled, these pikes might lead to dam-
aged pipes. See more information on page 81.
Code Parameter
M3.12.7.1 Enable soft fill
M3.12.7.2 Soft fill frequency
M3.12.7.3 Soft fill level
M3.12.7.4 Soft fill timeout
Min Max
0 1
Varies Varies Varies
0 1
Varies Varies Varies
Table 44.
Min Max
0 1
M3.3.1 M3.3.2
0 Varies Varies
0 30000
Table 45. PID1 Soft fill parameters
Unit Default ID
Enables pressure loss com-
pensation for setpoint 1.
0 1189
0 = Disabled
1 = Enabled
Value added proportionally to
the frequency.
Setpoint compensation =
Varies 1190
Max compensation *
(FreqOut-MinFreq)/(Max-
Freq-MinFreq)
0 1191 See M3.12.6.1.
Varies 1192 See M3.12.6.2.
Unit Default ID
0=Disable
0 1094
1=Enable
The drive accelerates to this
Hz 0.00 1055 frequency before starting to
control.
The drive runs at the Soft Fill
frequency until the feedback
0.0000 1095 reaches this value. When
reached, the controller starts
to regulate.
If the desired value is not
reached within this time, fault
s 0 1096 or alarm is triggered (leaking
pipe alarm).
0=No timeout used
HVAC A
PPLICATION
Description
Description