WIRING APPLICATIONS (EXAMPLES)

T775A/B/M SERIES 2000 CONTROLLER

B

R 3

W +

B

R

W +

MODULATING OUTPUT TERMINAL (MOD 1)

2

M9184 OR M9185

L1

1

L2

MODUTROL MOTOR

(HOT)

 

R

TR

W

TR

B

M9184 OR M9185

MODUTROL MOTOR

R

TR

W

TR

B

M9184 OR M9185

MODUTROL MOTOR

R

TR

W

TR

B

1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2USE A 1300 OHM RESISTOR FOR TWO MOTORS, 910 OHM RESISTOR FOR THREE MOTORS. THE 407EAU RESISTOR KIT, WHICH IS SHIPPED WITH THE M9184 AND M9185 MOTORS, INCLUDES BOTH RESISTORS.

3 INSERT 340 OHM RESISTOR (INCLUDED) ACROSS TERMINALS R AND W.

M24486

Fig. 19. Wiring for three Series 90 Modutrol Motors.

L1 (HOT)

 

 

 

L2 1

 

 

3

B

9R W +

B

R

W +

+

8 POWER 24 VAC

C +

MODULATING OUTPUT TERMINAL (MOD 1)

6MINIMUM POSITION POTENTIOMETER (Q209/S963)

W

R

B

5 CHANGEOVER CONTROLLER

1 W

2 R

3 B

7

M9184 OR M9185 2 MODUTROL MOTOR

R

TR

W

TR

B

M9184 OR M9185 2 MODUTROL MOTOR

R

TR

W

TR

B

M9184 OR M9185 2 MODUTROL MOTOR

R

TR

W

TR

B

4

1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2 UP TO SIX SIMILAR MOTORS CAN BE CONNECTED IN UNISON.

3 USE RESISTOR BETWEEN R AND B ON THE MOD 1 TERMINAL: 1300 OHMS FOR TWO MOTORS; 910 OHMS FOR THREE MOTORS (4074EAU KIT).

4IF COMMON TRANSFORMER IS USED, ALL MOTORS MUST BE IN PHASE. CONNECT THE SAME TRANSFORMER LEAD TO T1 ON EACH MOTOR, CONNECT THE OTHER TRANSFORMER LEAD TO T2 ON EACH MOTOR.

5USE TEMPERATURE CONTROLLER SUCH AS H205 OR H705, OR T675A FOR CHANGEOVER CONTROL.

6AUTHORITY OF MINIMUM POSITION POTENTIOMETER, IF USED, INCREASES WITH THE NUMBER OF MOTORS IN PARALLEL. WITH ONE MOTOR, 50% STROKE; WITH TWO MOTORS, 100% STROKE; WITH THREE MOTORS, 100% STROKE WITH 1/3 OF FULL POTENTIOMETER ROTATION.

7REVERSING THE B AND W TERMINALS ON ONE OR MORE MOTORS WILL NOT AFFECT CONTROL PERFORMANCE ON THE OTHER MOTORS. THE SYSTEM CAN BE CONFIGURED TO HAVE SOME MOTORS BE REVERSE ACTING AND OTHER MOTORS BE DIRECT ACTING.

8USE SEPARATE TRANSFORMER FOR T775 WHEN POWERING FROM 24 VAC.

9THE SYSTEM IS SHOWN CONNECTED FOR COOLING. FOR HEATING, REVERSE THE W AND B LEADS OF THE MODULATING OUTPUT ON THE T775 CONTROLLER.

M24487

Fig. 20. Wiring for unison control of M9184 or M9185 Modutrol IV Motor using one minimum position

potentiometer for all motors.

9

62-0254–03

Page 17
Image 17
Honeywell AC-140-7, AC-220-7 manual Wiring for three Series 90 Modutrol Motors

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