Xylem HYDROVAR Smart - Manual (Page 25)

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If MANUAL CONTROL is selected, the parameter REQUIRED VALUE will change to MANUAL
CONTROL in the main menu, where the actual frequency and the actual value is displayed
(according to the JOG-MODE in the submenu).
Now the frequency can be changed with the Ï and Ð buttons, and the speed of the pump
will change with the fasten ramps. After selecting the right frequency, it can be saved with
the standard SAVE.
After a supply failure, the pump will then run with this selected frequency (depending on
the parameter AUTO-START).
The frequency can be changed between the set minimum and maximum frequency.
In the 1
st display, there is shown the actual frequency.
NOTE: CONFIG. FMIN will not work in this mode.
Attention Driving the pump in a not allowed speed range can damage the motor or the
inverter!
Press ¾ on the Hydrovar-Smart to change to
7.16 Control Response
REGULATION MODE
Normal
Normal: Speed is increased with falling actual value
signals. (e.g.: Control at constant output pressure).
Inverse: Speed is reduced with falling actual value
signal, (e.g.: Control at constant suction pressure or at
constant level).
Press ¾ on the Hydrovar-Smart to change to
7.17 Start Value
START VALUE
disabled
This parameter gives you the start value after pump
stop in percentage of the required value (adjustable
between disabled and sensor range).
Example:
required value: 5,0 bar
start value: 2,5 bar
If the pump system have reached the required pressure from 5.0 Bar and there is no more
consumption, the Hydrovar-Smart shuts off the pump. When the consumption increases
and the pressure goes down the pump will normally start. If you have selected the START
VALUE at 2,5 bar the pump will start again at this selected pressure.
Press ¾ on the Hydrovar-Smart to change to