Terminals Of The Hydrovar-Smart - Xylem HYDROVAR Smart Manuel Opérateur

4.1

Terminals of the HYDROVAR-Smart

Screen
Actual value signal input 4-20mA
+15 VDC max. 100mA
External on/off
External low Water
Motor thermal switch or PTC
Ground
Analogue output 2; 0-10V
Current signal input 4..20mA
Voltage signal input 0..10V or 2..10V
Digital input
Fault signal
Pump running signal
RS 485
When connecting more variable speed drives (max. 4 pumps) via the interface RS 485, the
terminals X5/1/2/3 or X6/1/2/3 of each Hydrovar-Smart have to be connected together by
using a shielded cable and have to be programmed accordingly.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NC 1
CC
2
NO
3
NC
4
CC
5
NO
6
SIO -
1
SIO +
2
GND
3
+ 5V
4
Display
RS 485
RS 485
14
GND
6
Analogue output 1 (0-10V)
5
to the VFD
4
Error Relay of the VFD
3
2
24V AC/DC+
1 24V AC/DC-
Supply Voltage