Auxiliary Switches - Honeywell Modutrol IV M6284A1089-S Product Data

Auxiliary Switches

Adjustable cams actuate the auxiliary switches. These cams
can be set to actuate the switches at any angle within the
motor stroke. Select switch differential of 1° or 10°.
Motors with factory-added auxiliary switches are shipped in
the closed position (fully counterclockwise, as viewed from the
power end). Auxiliary cam default actuates the switches 30°
from fully open with a 1° differential. With the motor in the
closed (fully counterclockwise) position, the auxiliary switch
breaks contacts R-B. See Fig. 11 (or the auxiliary switch
Installation Instructions) for auxiliary switch wiring.
NOTE: Series 2 Motors are shipped with auxiliary switch
cams that permit acceptance of 220736A,B Inter-
nal Auxiliary Switch Kits. Refer to Form no. 63-
2228 for 220736A,B Installation Instructions.
Auxiliary Switch Adjustment
IMPORTANT
When adjusting the auxiliary switch cams use the
following procedure:
1.Insert 1/8 in. screwdriver blade into a slot on cam
and move the screwdriver top as far as possible in
the required direction. See Fig. 14.
2.Repeat step 1 in successive cam slots until the
cam is in the required position.
Use the following procedure to obtain the desired auxiliary
switch settings:
1. Remove the top cover from the motor to gain access to
the motor terminals and auxiliary cams.
2. Disconnect the controller from the motor.
3. Drive the motor to the position where the auxiliary
equipment is to be switched as follows:
SERIES 61 AND SERIES 62 MODUTROL IV™ MOTORS
a. For Non-Spring Return models without a transformer,
connect 24 Vac to terminals 2 and 3 to drive motor
open (clockwise as viewed from the power end), or to
terminals 1 and 3 to drive motor closed
(counterclockwise).
b. For Non-Spring Return models with a transformer,
jumper across terminals R and 2 to drive motor
open (clockwise as viewed from the power end), or
across terminals R and 1 to drive motor closed
(counterclockwise).
c. For Spring Return models, connect a jumper across
terminals 2 and 4 to drive the motor open, or across
terminals 1 and 4 to drive the motor closed.
4. Once motor reaches correct position, disconnect the
jumper.
5. For a switch differential of 1°, check continuity of auxiliary
switch contacts R-B and rotate the cam as follows:
a. If the contacts are open, rotate the cam clockwise
until the R-B contacts close.
b. If the contacts are closed, rotate the cam
counterclockwise until the R-B contacts open.
6. For a switch differential of 10°:
a. For Spring Return models, rotate the cam
approximately 180° so the slow-rise portion of the
cam actuates the switch. Then check continuity of
the auxiliary switch contacts R-B.
b. For Non-Spring Return models, check continuity of
the auxiliary switch contacts R-B.
7. Rotate the cam as follows:
a. If the contacts are open, rotate the cam
counterclockwise until the R-B contacts close.
b. If the contacts are closed, rotate the cam clockwise
until the R-B contacts open.
8. Check for the proper differential and switching of the
auxiliary equipment by driving the motor though the full
stroke in both directions.
9. Disconnect the jumper, reconnect the controller, and
replace the top cover on the motor.
NOTE: Changing the differential from 1° to 10° reverses
the switching action. For example, with a 10° dif-
ferential, switch contacts R-B make and R-W
break on a
counterclockwise (closed) rotation. With a 1°
differential, switch contacts R-W make and R-B
break on a counterclockwise (closed) rotation.
11 63-2629EF—01