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Series 90
Modutrol IV Motors
PRODUCT DATA
FEATURES
Directly replaces M934A,D, M941, M944A,C,D,
M945A,D,F, M954, M965, and M975 motors.
Oil-immersed motor and gear train for reliable
performance and long life.
Integral junction box provides NEMA 3 weather
protection.
Motor and circuitry operate from 24 Vac. Models
available with factory installed transformer, or a
field-added internal transformer.
Quick-connect terminals standardscrew terminal
adapter available.
Adapter brack
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SERIES 90 MODUTROL IV MOTORS SPECIFICATIONS TRADELINE Models: Selected and packaged to provide NOTE: Auxiliary switches can only be added to motors that ease of stocking, ease of handling and maximum include auxiliary switch cams. (These cams cannot replacement value. Specifications are the same as those of be field-added.) standard models unless specified otherwise. Modutrol IV Order Number Guide: See Table 1. TRADELINE models have auxiliary switch cams. Table 1. Modutrol IV Order Number Gui
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SERIES 90 MODUTROL IV MOTORS Dimensions: See Fig. 1. 221508A Resistor Board plugs onto Series 90 Motor quick- connect wire terminals. Provides same functionality as Electrical Ratings: See Table 3. 4074BYK, 4074EAU, 4074EDC, or 4074EED Resistor Kits. 4074BYK Series 90 Resistor Kit provides for unison control of Control Inputs: Proportional, Series 90. up to six Series 90 Motors. 4074EAU W973 Resister Kit provides for control of two or NOTE: Motor Series 90 control can be either Electronic, o
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SERIES 90 MODUTROL IV MOTORS TOP VIEW TOP VIEW OF BRACKET 4-7/8 4-1/4 (124) (107) 4-5/8 5-13/16 (116) (148) 5-1/2 2-5/16 (140) (58) 11/16 (17) POWER END 13/16 1/4 (20) (7) 3 1/4 (7) 4-1/16 (103) 1-1/2 (37) 4 4-7/8 (124) 4-1/16 (103) 5-9/16 (141) 5 4-1/16 (103) 1-1/2 (37) WIRING BOX 3/4 (19) MOTOR 1 6-7/16 (164) SPRING RETURN MODEL SHOWN AUXILARY POWER 5-3/8 1 SOME MODELS DO NOT HAVE AN AUXILIARY (137) END END SHAFT. ALL OTHER DIMENSIONS ARE THE SAME. 2-9/16 2 FOR HIGH TORQUE (60 LB-IN.) SPRI
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SERIES 90 MODUTROL IV MOTORS Table 5. Series 90 Modutrol Motor Timing and Torque Ratings. b Rated Torque in lb-in. (Nm) a c Nominal Timing in sec Normal Running Torque Breakaway Torque 90° 160° Spring Return Non-Spring Return Spring Return Non-Spring Return 30 60 25 (2.8) 35 (4) 50 (5.7) 70 (8) d d 60 (6.8) 75 (8.5) 120 (13.6) 150 (17) 15 /30 30 /60 30 60 150 (17) 300 (34) 60 120 300 (34) 600 (68) a Timings apply to all TRADELINE models. Some OEM models are available with non-standard
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45 90 SERIES 90 MODUTROL IV MOTORS Adapter Bracket Damper Linkages The 220738A Adapter Bracket, positioned between the motor The motor does not include a crank arm. Order the crank arm, and the equipment, raises motor shaft height by 0.75 in. included in the Q605 Linkage, separately (see Accessories in ® (19 mm) to match that of the former Modutrol Motor. the Specifications section). For detailed instructions on the assembly of specific linkages, refer to the instruction sheet The followi
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SERIES 90 MODUTROL IV MOTORS STANDARD BOLTS (4) BOLTS 1 PROVIDED (4) WIRING BOX MOTOR ADAPTER BRACKET EQUIPMENT BASE 1 #12 OR 1/4" ZINC PLATED MACHINE SCREWS OR BOLTS M452E SPRING RETURN NON-SPRING RETURN Fig. 3. Mounting the motor with an adapter bracket. WIRING BOX POWER MOTOR END OF MOTOR Q5001 VALVE LINKAGE 1/4-20 UNC 1 in. LONG MOUNTING BOLTS VALVE M17092 Fig. 4. Mounting the motor on a Q5001 Valve Linkage. 7 63-21903 POWER END POWER END POWER END
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SERIES 90 MODUTROL IV MOTORS SETTINGS AND ADJUSTMENTS a. For 160° stroke: Before Setting Stroke (1) Insert 1/8 in. screwdriver blade into an inner cam 1. Remove the top cover from the motor. slot and move screwdriver top as far as possible 2. Disconnect the controller from the motor. counterclockwise (viewed from power end). 3. Connect a potentiometer to the motor as shown in Fig. 7. See Fig. 9. Repeat in successive cam slots until inner cam is against the counterclockwise stop. IMPORTANT (
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SERIES 90 MODUTROL IV MOTORS SERIES 90 MOTOR CONTROLLER R R T1 W W T2 B B TRANSFORMER L1 (HOT) 1 L2 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. INNER STROKE 2 TRANSFORMER MAY BE INTERNAL OR EXTERNAL M770A ADJUST CAM 1 OUTER STROKE 2 ADJUST CAM Fig. 6. Typical Series 90 wiring. AUXILIARY SWITCH CAMS POWER END 135 Ohm OF MOTOR MOTOR Potentiometer MOVE SCREWDRIVER AT TOP ONLY TO ADJUST CAM. R R T1 W W NO. OF CAM 1 TORQUE CAMS COLOR T2 B B 1/8 INCH HIGH 2 Y
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W B R T2 T1 SERIES 90 MODUTROL IV MOTORS Table 6. Modutrol IV Motor Operation. Auxiliary Switch Adjustment 1. Remove the top cover from the motor to gain access to Motor Type Signal Resulting Action the motor terminals and auxiliary cams. Non-Spring Return Open W and short drives open 2. Disconnect the controller from the motor. or Spring Return R to B 3. Connect a potentiometer to the motor as shown in Fig. 7. 4. Using the potentiometer, drive the motor to the position Open B and short drives
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SERIES 90 MODUTROL IV MOTORS 2 2 1/8 INCH RIGHT/INNER 1/8 INCH STRAIGHT-BLADE RIGHT/INNER AUXILIARY STRAIGHT-BLADE SCREWDRIVER AUXILIARY SWITCH SCREWDRIVER SWITCH SLOW RISE SLOW RISE PORTION PORTION INNER (APPROX. INNER (APPROX. AUXILIARY 10 DIFF.) AUXILIARY FAST RISE PORTION FAST RISEPORTION 10 DIFF.) CAM CAM (APPROX. 1 DIFF.) (APPROX. 1 DIFF.) (RED) (RED) LEFT/OUTER LEFT/OUTER AUXILIARY AUXILIARY SWITCH SWITCH SLOW RISE SLOW RISE PORTION PORTION (APPROX. (APPROX. OUTER 10 DIFF.) 10
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SERIES 90 MODUTROL IV MOTORS CHECKOUT REPLACEMENT After the installation and linkage adjustment, check the entire Damper Application motor and control hookup. Proper checkout ensures that: The motor operates the load (damper or valve) properly. 1. Turn off power and remove wiring from the old motor. The motor responds properly to the controller as the input 2. Remove the crank arm from shaft of old motor and varies. See Table 6. remove the old motor. The auxiliary switch, if used, opera
