SERIES 61 AND SERIES 62 MODUTROL IV™ MOTORS
9
63-2629—2
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. 12.
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 equip-
ment is to be switched as follows:
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 (counter-
clockwise).
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° differential,
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.
Fig. 12. Auxiliary switch adjustment.
RIGHT/INNER
AUXILIARY
SWITCH
FAST RISE
PORTION
(APPROX.
1 DIFF.)
SLOW RISE
PORTION
(APPROX.
10 DIFF.)
INNER
AUXILIARY
CAM
(BLUE)
NOTE: CAMS ARE OFFSET VERTICALLY TO
PROVIDE BETTER VIEW OF BACK CAM.
FAST RISE
PORTION
(APPROX.
1 DIFF.)
SLOW RISE
PORTION
(APPROX.
10 DIFF.)
MOTOR
OPEN
MOTOR
CLOSE
POWER
END
OUTER
AUXILIARY
CAM
(RED)
LEFT/OUTER
AUXILIARY
SWITCH
M13700
POWER END
OF MOTOR
OUTER AUXILIARY
CAM (RED)
INNER AUXILIARY
CAM (BLUE)
RIGHT/INNER
AUXILIARY SWITCH
LEFT/OUTER
AUXILIARY
SWITCH
MOVE SCREWDRIVER AT
TOP ONLY TO ADJUST CAM.
1/8 INCH
STRAIGHT-BLADE
SCREWDRIVER
