Xylem IM043 AQUAVAR Variable Speed Pump Control - Manual (Page 20)

19
electrical Connections continued
13. Route cable through strain relief and connect to the appropriate terminal block.
Tighten strain relief.
14. For multi-pump systems: Use a three core shielded cable to connect terminals 1, 2, and 3
on X5 between the AQUAVAR controller units. These are the RS-485 interface connections.
(See Diagram 8 and 10). Note: either RS485 port can be used.
• Connect pump one to pump two, two to three, and three to four.
15. External pressure switch or float switch- if used to check incoming pressure and low/no
suction. Connect to terminal block X1 at the 6 and 7 location. Refer to Diagram 8.
When using a suction pressure switch, set the cut off at the maximum NPSH required by the pump.
16. External on/off
If used to turn the AQUAVAR controller on or off from an external panel or controller, connect
to terminal block X1 at the 4 and 5 location (refer to Diagram 8).
Installation Procedures
gOuLDS PuMPS STRONgLY RECOMMENDS THE uSE OF AN INPuT LINE REACTOR TO SAFE-
guARD YOuR AQUAVAR FROM DAMAgE CAuSED BY HIgH vOLTAgE SPIkES. THESE LINE
REACTORS ARE AvAILABLE FROM YOuR DISTRIBuTOR AND SHOuLD BE INSTALLED WHER-
EvER uNEvEN POWER SuPPLY IS SuSPECTED. DAMAgE FROM HIgH vOLTAgE SPIkES IN
SYSTEMS WITHOuT AN INPuT LINE REACTOR MAY NOT BE COvERED uNDER WARRANTY.
WARNINg
AQUAVAR
®
RS485 Interface
Control Terminals
Power Supply Motor Connection
1x230 VAC 3 Phase Out
L=L
1
, N=L
2
U, V, W
AQUAVAR
®
RS485 Interface
Control Terminals
Power Supply Motor Connection
1x230 VAC 3 Phase Out
L=L
1
, N=L
2
U, V, W
AQUAVAR
®
RS485 Interface
Control Terminals
Power Supply Motor Connection
1x230 VAC 3 Phase Out
L=L
1
, N=L
2
U, V, W
Diagram 10
If an external switch is NOT used, install a jumper wire between X1 Locations 4 and 5.
Note