Table 6-10.--XY Universal Switch Test Set Operation Procedures

7. Supply of 24-volt test battery to the magnets for

5. Spring assembly tests in the normal and

adjustment purposes

operated positions

Table 6-10 explains what the switch and

6. Release tests from the X- and Y-overflow

indicators do on the XY test set. The information in

positions

Table 6-10.--XY Universal Switch Test Set Operation Procedures

FUNCTION

LEVER SWITCH

Used in conjunction with PULSING X-XY-Y switch to test step-

PULSING HIGH-LOW

ping action of XY Universal Switch (in the X, or Y, or the X

and Y directions) under low or high percent make conditions.

In LOW position -- supplies 12 pulses per second at 34-

percent make (low pulse ratio).

In HIGH position -- supplies 12 pulses per second at 84-

percent make (high pulse ratio).

In center position -- disconnects pulsing generator (XY

Universal Switch in test cell will not step).

Used in conjunction with PULSING HIGH-LOW switch to select

PULSING X-XY-Y

stepping direction of XY Universal Switch (X, or Y, or X and

Y directions) when XY Universal Switch is being tested for

Operation under low or high percent make conditions.

In Y position -- causes XY Universal Switch in test cell to

step in Y direction and recycle.

In XY position -- causes XY Universal Switch in test cell

to step in X then Y direction and recycle.

In X position -- causes XY Universal Switch in test cell to

step in X direction and recycle.

Used in conjunction with AUTO STEP X-XY-Y switch to test

AUTO STEP STEP-SPEED

automatic stepping feature (self-interrupted stepping) of XY

Universal Switch under test.

In STEP position -- tests automatic stepping feature of

XY Universal Switch in X, or Y, or X and Y direction

(recycles).

In SPEED position -- tests hunting speed of XY Universal

Switch in X or Y direction (does not recycle).

In center position -- disconnects automatic stepping

source from XY Universal Switch.

Used in conjunction with AUTO STEP STEP-SPEED switch to

AUTO STEP X-XY-Y

select stepping direction of XY Universal Switch (in X, or Y,

or X and Y directions) when XY Universal Switch is being

tested for operation under automatic stepping conditions or

hunt-speed conditions.

In Y position -- causes XY Universal Switch in test cell to

step to Y overflow and recycle.

In XY position -- causes XY Universal Switch in test cell

to step in X then Y direction and recycle.

6-53