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248 Actual signals and parameters
4409
OUTLET PROT
CTRL
NOT SEL
Enables, and selects the mode of, the primary supervision of pump/fan outlet pressure.
Note:
Outlet protection is active only when the active reference is PID.
0 = NOT SEL – Primary outlet pressure supervision not used.
1 = ALARM – Detection of high outlet pressure produces an alarm on the control panel
display.
2 = PROTECT –
Detection of high
outlet pressure
produces an alarm
on the control panel
display. The output of
the PI controller is
ramped down
(according to
parameter
) to
the forced reference
(set by parameter
). The
drive will revert to the
original reference if
the pressure
subsequently falls
below the supervision level.
The following diagram describes the outlet pressure supervision function.
3 = FAULT – Detection of high outlet pressure trips the drive on a fault.
4410
AI MEAS OUTLET
NOT SEL
Selects the analog input for pump/fan outlet pressure supervision.
0 = NOT SEL – No analog input selected.
1 = AI1 – Pump/fan outlet pressure monitored through analog input AI1.
2 = AI2 – See selection AI1.
4411
AI OUT HI LEVEL
0.00 … 100.00%
1 = 0.01%
100.00%
Sets the supervision limit for the primary outlet pressure measurement. If the value of
the selected analog input exceeds this limit, the action defined by parameter
is taken after a delay set with parameter
expires. Supervision level
4412
VERY HIGH CTRL
NOT SEL
Enables, and selects the mode of, the secondary outlet pressure supervision function.
The function uses the analog input selected by parameter
.
0 = NOT SEL – Secondary outlet pressure monitoring not used.
1 = STOP – Detection of very high outlet pressure stops the drive. The drive will start
again if the pressure falls below the supervision level.
2 = FAULT – Detection of very high outlet pressure trips the drive on a fault.
4413
AI OUT VERY HIGH
0.00 … 100.00%
1 = 0.01%
100.00%
Supervision level for secondary outlet pressure monitoring function. See parameter
. Supervision level
Group 44: Pump protection
Code
Description
Range
Resolution
Default
S
Measured outlet
pressure
EXT2 reference
(from PID1OUT)
t
t
Summary of Contents for ACS320 series
Page 1: ...ABB drives User s manual ACS320 drives 0 5 to 30 hp ...
Page 4: ......
Page 18: ...18 Safety ...
Page 28: ...28 Operation principle and hardware description ...
Page 56: ...56 Electrical installation ...
Page 142: ...142 Program features Connection diagram example ACS320 xx xxxx x ...
Page 282: ...282 Actual signals and parameters ...
Page 358: ...358 Fieldbus control ...
Page 376: ...376 Fault tracing ...
Page 382: ...382 Maintenance and hardware diagnostics ...
Page 407: ...Dimension drawings 407 Frame size R2 NEMA 1 Frame size R2 IP20 NEMA 1 3AUA0000051097 A ...
Page 409: ...Dimension drawings 409 Frame size R3 NEMA 1 Frame size R3 IP20 NEMA 1 3AUA0000051118 A ...
Page 411: ...Dimension drawings 411 Frame size R4 NEMA 1 Frame size R4 IP20 NEMA 1 3AUA0000051133 A ...
Page 412: ...412 Dimension drawings ...
Page 413: ...Index Numerics A B C D E F G H I K L M N O P R S T ...