Honeywell M9481, M9491, M9494 manual Cam, LOCATIONa

AUXILIARY SWITCH CONNECTIONS

supplies to de-energize the

The M9484E has 1 internal auxiliary switch. The switch wires are color-coded as follows: solid yellow-normally closed (N.C.); solid red-common (COM.); solid blue-normally open (N.O.).

SWITCH/CAM COLOR-CODING:

The M9484F has 2 internal auxiliary switches which may be used to prove low fire and high fire positions.

1.To prove low fire use red (common) and yellow wires connected to outer (left) switch. This switch makes red to yellow and breaks red to blue as motor closes.

2.Wires connected to the inner (right) switch are black with colored tracers. To prove high fire, use red tracer (common) and blue tracer wires. The right switch makes red tracer to blue tracer and breaks red tracer to yellow tracer as motor opens.

Color coding and switching action are tabulated below to aid the installer.

TABLE 1

		CAM						SWITCH WIRESb
	SWITCH	ASSEMBLY		CAM
	LOCATlON’	LOCATIONa		COLOR CODE			COLOR		DESIGNATION
	Left	Outer		Red		Solid Yellow			Normally Closed (N.C.)
						Solid Red			Common (COM.)
						Solid Blue			Normally Open (N.O.)
	Right	Inner		Blue		Yellow Tracer			Normally Closed (N.C.)
						Red Tracer			Common (COM.)
						Blue Tracer			Normally Open (N.O.)
	aViewed from power end of motor.
	bSee Fig. 6.
SWITCHING ACTION:
				TABLE 2
	SWITCH	NORMAL						CAM		MOTOR
	LOCATIONa	FUNCTION	MAKES		BREAKES			POSITIONb		POSITION
	Left	Proves		Red	Red			High portion of cam		Closing
		Low Fire		to	to			not in Contact
		Position		Yellow	Blue			with Cam follower.
	Right	Proves	Red Tracer		Red Tracer			High portion of cam		Opening
		High Fire		to	to			in Contact
		Position	Blue Tracer		Yellow Tracer			with Cam follower.

aViewed from power end of motor. bSee Fig. 9

STROKE SEl-lING

On M94XXD,E,F motors, stroke is field adjustable and can be set from 90” to 160”. Motors are shipped in 90” position. In order to set stroke, both mechanical and elec- trical adjustments are required. The mechanical adjust- ments (cams) establish the full open (clockwise, n as viewed from the power end) and full closed (counterclock- wise 0 ) positions of the motor shaft. The electrical adjustment (trim pot) provides sufficient total stroke angle to ensure that cams will actuate both limit switches.

STROKE SETTING PROCEDURE

See Fig. 8.

Detach linkage from motor before adjusting stroke.

BEFORE SETTING STROKE:

1.Remove top cover from motor.

2.Disconnect controller from motor.

3.Connect R,B,W terminals on 135 ohm potentiome- ter (Q209 or S963) to matching terminals on motor.

SETTING 160” STROKE (Fig. 8):

1.Turn stroke pot fully clockwise f7 .

2.Drive motor to mid-position using 135 ohm pot (Q209 or S963), or by jumpering B-R-W.

3.Insert l/8 in. screwdriver blade into slot on inner yellow cam and MOVE TOP OF SCREWDRIVER as far as possible counterclockwise n (viewed from power end). Repeat in successive cam slots until inner cam is against counterclockwise 0 stop.

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