Honeywell Modutrol IV Series 61 Manual page 10

SERIES 61 AND SERIES 62 MODUTROL IV™ MOTORS
POWER END
OF MOTOR
NO. OF CAM
1
TORQUE
CAMS COLOR
HIGH 2
YELLOW
LOW 1
BROWN
2
OUTER STROKE ADJUST CAM IS ONLY
PRESENT ON HIGH TORQUE MOTORS.
Fig. 10. Stroke adjustment setup for
non-spring return models.
Feedback Potentiometer Configuration
(Series 62 TRADELINE
Select and install one of four shunt resistors to obtain the
appropriate feedback characteristic for your application. See
the Specifications section for details on feedback resistance
without a shunt resistor.
• Linear feedback provides linear indication of shaft position
with no shunt resistor. With no shunt resistor, full stroke
feedback resistance is 600 ohms for 160° stroke motors
and 355 ohms for 90° stroke motors.
• W902 Control requires full stroke feedback resistance of
115 ohms. Select and attach the proper shunt resistor
across terminals Y and G (see Table 5 and Fig. 11).
• Slaving a Series 90 Motor requires full-stroke feedback
resistance of 142 ohms. Select and attach the proper shunt
resistor across terminals Y and G (see Table 5 and Fig. 11).
63-2188—4
INNER STROKE
1
ADJUST CAM
OUTER STROKE
2
ADJUST CAM
AUXILIARY
SWITCH CAMS
MOVE SCREWDRIVER AT
TOP ONLY TO ADJUST CAM.
1/8 INCH
STRAIGHT-BLADE
SCREWDRIVER
CAM
M17100
®
Motors Only)
Table 5. Shunt Resistor Selections.
Linear
Stroke Feedback
90° None
160° None
a
Note that the W902 Control is obsolete, replaced by the
W964F, which does not require a feedback signal.
Fig. 11. Attaching a shunt resistor to TRADELINE motors.
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. 9 (or the auxiliary switch
Installation Instructions) for auxiliary switch wiring.
TRADELINE Motors are shipped with auxiliary switch cams
that permit acceptance of 220736A,B Internal Auxiliary Switch
Kits. Refer to form 63-2228 for 220736A,B Installation
Instructions.
10
Slaving Series 90
a
W902 Control
Green (174 ohms) Purple (274 ohms)
White (143 ohms) Red (187 ohms)
Motor
M652