Xylem hydrovar Instruction Manual

33
RS-485 – Internal interface RS-485 - User interface
The internal RS-485 Interface is used for communicating between up to 8 HYDROVARs in a multi-pump
application. This connection uses terminals X4/4-6 on the control card, or terminals X2/1-3 on the power unit.
(Example: using one master and three basic drives.)
Using the RS-485 – User interface on the control card, one or more HYDROVAR can communicate by stan-
dard Modbus-protocol with an external control device (e.g. PLC). This interface can be used for controlling the
HYDROVAR with external devices. Also available on HYDROVAR Single drives.
Do not use the internal interface for communicating with Modbus!
X4 X4
6 GND
5 SIO +
4 SIO -
3 GND
2 SIO +
1 SIO -
GND
SIO +
SIO -
GND
SIO +
SIO -
GND
SIO +
SIO -
GND
SIO +
SIO -
6
5
4
X4
X2 X2 X2
HYDROVAR Master Inverter
Control Card
HYDROVAR Basic Inverter
Power Unit
HYDROVAR Basic Inverter
Power Unit
HYDROVAR Basic Inverter
Power Unit
GND
SIO +
SIO -
3
2
1
X4
HYDROVAR User Interface
GND
SIO +
SIO -
PLC
ELECTRICAL INSTALLATION AND WIRING

Xylem hydrovar Specifications

General

Frequency	50/60 Hz
Control type	Variable speed drive
Protection class	IP55
Communication protocols	Modbus
Relative Humidity	5% - 95% (non-condensing)
Altitude	Up to 1000 m without derating
Input voltage	200-690 V AC
Storage Temperature	-25°C to +70°C (-13°F to 158°F)