Pump Protection - ABB ACS310 User Manual

All parameters
No. Name/Value
44 PUMP
PROTECTION
4401 INLET PROT
CTRL
NOT SEL
ALARM
PROTECT
FAULT
4402 AI MEASURE
INLET
NOT SEL
AI1
AI2
4403 AI IN LOW
LEVEL
0.00...100.00% The range corresponds to 0...10 V or 0...20 mA on the
4404 VERY LOW
CTRL
NOT SEL
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Description
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.
Detection of low inlet pressure generates an alarm on the
control panel display. The output of the PI controller is
ramped down (according to parameter
TIME) to the forced reference (set by parameter
INLET FORCED REF). The drive reverts to the original
reference if the pressure subsequently exceeds the
supervision level.
The following diagram describes the inlet pressure
supervision function.
Measured inlet
pressure
4403
4405
EXT2 reference
(from PID1OUT)
4408
Detection of low inlet pressure trips the drive on a fault.
Selects the analog input for pump/fan inlet pressure
supervision.
No analog input selected
Pump/fan inlet pressure monitored through analog input AI1 1
See selection AI1.
Sets the supervision limit for the primary inlet pressure
measurement. If the value of the selected input falls below
this limit, the action defined by parameter
PROT CTRL is taken after the delay set by parameter
INLET CTRL DLY expires.
analog input. With a bipolar input, the absolute input value is
considered.
Enables, and selects the mode of, the secondary inlet
pressure supervision function. The function uses the analog
input selected by parameter
Secondary inlet pressure supervision not used
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Actual signals and parameters 251
4417 PID OUT DEC
4407
4417
4401 INLET
4402 AI MEASURE
Industry Automation
Def/FbEq
NOT SEL
0
1
2
4408
t
t
3
NOT SEL
0
2
0.00%
4407
1 = 0.01%
NOT SEL
INLET.
0
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