Parameters 273
81.04 Very low ctrl Enables the secondary supervision of pump inlet pressure,
and selects the action taken after very low inlet pressure is
detected. The selected action is taken only after the
measured pressure has remained below the pressure limit
(81.05 AI in very low) for longer than the value of parameter
81.07 Inlet ctrl dly. See the diagram at parameter 81.01 Inlet
prot ctrl.
Note: With a pressure switch, this parameter has no effect.
Not sel Secondary inlet pressure supervision not used. 0
Fault Detection of very low inlet pressure trips the drive. 1
Stop Detection of very low inlet pressure stops the drive. The
drive will restart if the pressure rises above the limit.
2
81.05 AI in very low Pressure limit for secondary inlet pressure supervision. See
parameter 81.04 Very low ctrl.
0.00 … 32767.00
bar
Pressure limit. 100 = 1 bar
81.06 DI status inlet Selects the digital input for connection of a pressure switch
at the pump inlet. The “normal” state is 1. If the selected
input switches to 0, the action defined by parameter 81.01
Inlet prot ctrl is taken after the delay set by parameter 81.07
Inlet ctrl dly expires.
Not used No pressure switch connected. 1
DI1 Digital input DI1 (as indicated by 02.01 DI status, bit 0). 1073742337
DI2 Digital input DI2 (as indicated by 02.01 DI status, bit 1). 1073807873
DI3 Digital input DI3 (as indicated by 02.01 DI status, bit 2). 1073873409
DI4 Digital input DI4 (as indicated by 02.01 DI status, bit 3). 1073938945
DI5 Digital input DI5 (as indicated by 02.01 DI status, bit 4). 1074004481
Const Bit pointer setting (see Terms and abbreviations on page
109).
-
Pointer
81.07 Inlet ctrl dly Delay for primary and secondary supervision of pump inlet
pressure. See parameter 81.01 Inlet prot ctrl.
0…600 s Delay. 1 = 1 s
81.08 Inlet forced ref Pump speed reference for parameter 81.01 Inlet prot ctrl,
selection Protect.
0.0 … 32767.0 rpm Speed reference. 10 = 1 rpm
81.09 Outlet prot ctrl Enables the primary supervision of pump outlet pressure
and selects the action taken when high outlet pressure is
detected. The selected action is taken only after the
measured pressure has remained above the pressure limit
(81.11 AI out hi level) for longer than the value of parameter
81.15 Outlet ctr dly.
The pressure can be measured using an analog pressure
sensor or a pressure switch.
The input for an analog sensor is defined by parameter
81.10 AI meas outlet. With an analog sensor, a separate
action for “very high outlet pressure” can be defined using
parameter 81.13 AI out very high.
The input for a pressure switch is defined by parameter
81.14 DI status outlet.
Not used Primary outlet pressure supervision not used. 0
No. Name/Value Description FbEq
To Next Page
Loading...
