VARISCO PSDrive 11, Инструкция по установке, эксплуатации и обслуживанию

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9.6. Control parameters
Parameter Default Description 1 2 3 4 5
Control mode
1. Constant value
2. Fix speed
3. Const.value 2set
4. Fix speed 2 val.
5. External speed
Con-
stant
value It is possible to choose between the following control
modes:
1. Constant value:The device varies the pump speed
so as to keep the set value constant regardless of
water consumption.
2. Fix speed:The device powers the pump at the set
frequency.
3. Const.value 2set: Two desired values may be selec-
ted by opening or closing digital input 2.
4. Fix speed 2 val.: Two desired frequency values may
be selected by opening or closing digital input 2.
5. External speed: It is possible to control the motor
frequency through an analog signal connected to
analog input 4.
x x x x x
AUX control mode
XXXXXXXX
Con-
stant
value By acting on digital input 4, it is possible to switch from
the main control mode to the auxiliary control mode and
vice versa. x x x x x
Max alarm value
p = XX.X [bar]
10 Reachable value in the system beyond which, even in
constant frequency operation mode, the pump stops
and an alarm signal is emitted. The pump is only restar-
ted after the measured value has fallen below the maxi-
mum alarm value for longer than 5 seconds. x x x x x
Min alarm value
p = XX.X [bar]
0 Minimum value that may be reached in the system be-
low which, even in constant frequency operation mode,
the pump stops and an alarm signal is emitted. The
pump is only restarted after the measured value has ris-
en above the minimum alarm value for more than 5 sec-
onds. x x x x x
Pipe Fill Ramp
XXX [s]
=
Ramp
up time
Ramp time to follow after a start if the measured value
is below the minimum alarm value. The pipe filling ramp
expires after the set time or if the measured value rea-
ches the set value.
In COMBO mode only one unit is enabled to run as long
as the fill ramp is active.
x x
Ext.set enabling
ON/OFF
OFF Enabling of set value setting via analog input 3. x x
Set value
p = XXX.X [bar]
3 Value you want to keep constant. x
Compensation
p = XXX.X [bar]
0 Compensation at maximum frequency. By pressing the
green button it is possible to invert the sign.
2
(1 bar)
3
(3 bar)
1
4 bar
300 m
4 5
Q
H
1: sensor; 2: Compensation ; 3: Set value ; 4: Min motor
freq.; 5: Max motor freq.
In case of a pump group in COMBO mode, the compen-
sation must be referred to each pump.
x
Set value 2
p = XXX.X [bar]
3 Intended value to keep constant. x
PSDrive
37