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SPYDER® BACNET® PROGRAMMABLE CONTROLLERS
15 63-2689—05
Fig. 18. Controller wiring diagram (model PUB6438S shown) for typical PWM reheat and PWM peripheral heat valve
actuator. (For note 2, refer to Fig. 14.)
NOTE: Make sure to set the Configuration DIP Switch as
shown in Fig. 18. Switches 1 through 3 set the tim-
ing of the ML7984B valve actuator to match the
controller outputs (0.1 second minimum with a
maximum time of 25.6 seconds). Switch 4 deter-
mines the action of the actuator (Off = Direct Act-
ing, On = Reverse Acting).
1234
2
ON
OFF
ML7984B
CONFIGURATION
DIP SWITCHES
(LOCATED ADJACENT
TO THE INPUT
TERMINAL BLOCK)
1
1
2
TO ASSURE PROPER ELECTRICAL CONTACT, WIRES MUST BE TWISTED TOGETHER BEFORE INSERTION INTO THE TERMINAL BLOCK.
TURN POWER OFF BEFORE SETTING THE DIP SWITCHES.
MAKE SURE ALL TRANSFORMER/POWER WIRING IS AS SHOWN: REVERSING TERMINATIONS WILL RESULT IN EQUIPMENT
MALFUNCTION.
M29335C
24 VAC
24 VAC
COM
+
-
DO-1
DO-2
DO-3
3
3
24 VAC COM
1
1
24 (H)
24 (N)
PWM
(H 24 VAC)
PWM OUTPUT
FROM CNTRL
PWM VALVE ACTUATOR
ML7984B
T6 T5 C B W R
REHEAT
VALVE ACTUATOR
24 (H)
24 (N)
PWM
(H 24 VAC)
PWM OUTPUT
FROM CNTRL
PWM VALVE ACTUATOR
T6 T5 C B W R
PERIPHERAL HEAT
VALVE ACTUATOR
24 VAC
3
3
AO-1
COM
AO-2
AO-3
COM
UI-1
COM
UI-2
UI-3
COM
UI-4
UI-5
COM
UI-6
DI-1
DI-2
COM
DI-3
20V DC
DI-4
BAC–
BAC+
SHLD
EGND
24 VAC
24VAC COM
DO-1
COM
DO-2
DO-3
DO-4
DO-5
COM
DO-6
COM
1
2
3456
78
109 2345678 09
11 1111111 21
1
2
34
5
6
78
0
9
22 2222222 33
1
2
34
5
6
78
0
9
333333334
DO-7
DO-8
COM
SBUS1
SBUS2