Xylem IM098 AQUAVAR Model 56 Controller - Manual (Page 13)

Step 3 – Wiring the AQUAVAR Model 56 Controller to the motor
(Parts in the electrical fittings package will be
required for this procedure). Refer to diagrams 6 and
7 before proceeding.
1) Remove the 3 screws holding the top of the
AQUAVAR Model 56 Controller. Carefully lift
off the top, disconnect the groundwire and set
aside.
2) Motor Lead Connections: Locate the
terminals U, V, W and GRD #1 inside the
AQUAVAR Model 56 Controller. Connect
wires to the terminals and route the cable as
shown on diagram 7.
3) Connections in Conduit Box: The free end of
the motor cable should now be routed
through the strain relief on the conduit box.
Connect the motor leads using the motor
nameplate as reference.
Place the thermistor terminal in the conduit
box and fasten so that the sensor will contact
the motor shell. Connect the thermistor with
2 wires routed to locations X2 #9 and X2 #8.
4) Pressure Transducer Installation and
Wiring: Locate the pressure transducer and
cable. The threaded end of the transducer is
a
1 ⁄
4
" NPT. Install the transducer in the
discharge pipe on the downstream side of
the check valve and connect the cable.
Now select one of the remaining holes in
the plate on the AQUAVAR Model 56
Controller heat sink. Route the cable through
the o-ring and fasten. Cut to length and
connect to locations X2 #1, X2 #2, X2 #3.
See diagram 6 for reference.
Installation Procedures
Diagram 6
Diagram 7
8
12
11
10
9
8
7
6
5
4
3
2
1
4
3
2
1
+ 5V
GND
SIO +
SIO -
RS-485
X3
motor thermistor
low water
external on/off R, 10 kohm, 5 volt DC
+5 V ub (red)
shield (black)
actual value signal 0.5-4.5 VDC, 50 ohm load resistance (white)
NO
CC
NC
X2
slave pump
CONTROL TERMINALS
MAIN SUPPLY
TERMINALS
FOR RS485
MOTOR CONNECTIONS
GRD #2 #1
U V W
L
2
L 1