Xylem HYDROVAR Smart - Manual (Page 27)

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7.19 Configuration of 1 st relay
RELAY CONFIG.
Simple Multicontr.
Selection possible with buttons Ï and Ð.
Run Motor ⇒ motor run indication (over the relay)
Simple Multicontr. ⇒ allows to start/stop a constant speed pump
Enable Seq.Ctl. – this will be the start frequency of the slave pump
Synchron. Limit – this will be the stop value of the slave pump
Stop Delay fmin. – this will be the delay time before starting the slave pump.
e.g. if the speed controlled pump reaches the start level, the relay will be switched on,
and will be switched off, when the output frequency falls below the stop level.
Press ¾ on the Hydrovar-Smart to change to
7.20 Submenu Offset
S U B M E N U
Offset
Press ¾ for about 3 seconds to enter the submenu
and the display changes to
7.20.1 Source of the Offset input
OFFSET INPUT
Off
The second additional input can be used as required
value 2 and also for an Offset of
the 1 st required value.
(Example:)
OFF : Offset deactivated
EXT ADC-I : Offset will be calculated according to the current input (4-20mA) at
the
terminals X1/12 (X1/10=Ground).
Note: If the incoming current signal is below 4mA, there will be an error message on
the display, but no failure is shown (failure relay is not closed). In this case the
OFFSET INPUT works like external signal=0.
EXT ADC-U 0-10V: Offset will be calculated according to the voltage input of 0-
10VDC
at terminals X1/13 (X1/10=Ground)
EXT ADC-U 2-10V: Offset will be calculated according to the voltage input of 2-
10VDC
at terminals X1/13 (X1/10=Ground)
Press ¾ on the Hydrovar-Smart to change to