Pump Protection - ABB ACS310 User Manual

All parameters
No. Name/Value
TIMED FUNC 3 See selection TIMED FUNC 1.
TIMED FUNC 4 See selection TIMED FUNC 1.
DI1(INV)
DI2(INV)
DI3(INV)
DI4(INV)
DI5(INV)
4229 OFFSET
0.0...100.0%
4230 TRIM MODE
NOT SEL
PROPORTION
AL
DIRECT
4231 TRIM SCALE
-100.0...100.0% Multiplier
4232 CORRECTION
SRC
PID2REF
PID2OUTPUT
44 PUMP
PROTECTION
4401 INLET PROT
CTRL
NOT SEL
ALARM
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Description
Inverted digital input DI1. 0 = active, 1 = inactive.
See selection DI1(INV).
See selection DI1(INV).
See selection DI1(INV).
See selection DI1(INV).
Defines the offset for the external PID controller output.
When PID controller is activated, controller output starts
from the offset value. When PID controller is deactivated,
controller output is reset to the offset value.
Parameter TRIM MODE must be set to NOT SEL.
4230
Value in percent
Activates the trim function and selects between the direct
and proportional trimming. With trimming it is possible to
combine a corrective factor to the drive reference. See
section
Reference trimming
No trim function selected
Active. The trimming factor is proportional to the rpm/Hz
reference before trimming (REF1).
Active. The trimming factor is relative to a fixed maximum
limit used in the reference control loop (maximum speed,
frequency or torque).
Defines the multiplier for the trimming function. See section
on page 119.
Reference trimming
Selects the trim reference. See section
on page 119.
PID2 reference selected by parameter
PID 2 SETPNT value)
PID2 output, ie signal
Set-up of pump protection.
Enables, and selects the mode of, the primary supervision
of pump/fan inlet pressure.
Note: Inlet protection is active only when the active
reference is PID.
Primary inlet pressure supervision not used
Detection of low inlet pressure generates an alarm on the
control panel display.
Actual signals and parameters 229
on page 119.
Reference trimming
4210
PID 2 OUTPUT value
0127
Def/FbEq
11
12
-1
-2
-3
-4
-5
0.0%
1 = 0.1%
NOT SEL
0
1
2
0.0%
1 = 0.1%
PID2REF
(ie signal 1
0129
2
NOT SEL
0
1