User Manual

TRANSMITTER OPERATION

1. Make sure the (2) alkaline batteries are installed correctly. Do make sure to use alkaline

type batteries for longer operating time between battery replacements.

2. Turn “on” the power switch located on the top left hand corner of the transmitter unit (see

diagram next page). Immediately after turning “on” the transmitter unit, the status LED

indicator located at the center of the power switch will display a green light for up to 1.5

seconds, do make sure that the red EMS pushbutton is in its elevated position.

If the status LED displays a red blinking light (ON  0.1 second and OFF  2.0 seconds)

or no light at all, then you must replace a set of new batteries before operation. If the red

blinking light is ON  2.0 seconds and OFF  0.1 second, the transmitter unit will

deactivates itself (locked) due to a jammed or defected pushbutton contact. This important

safety feature is designed to prevent unexpected crane movement at system start up caused

by a defected pushbutton contact.

After transmitter self-diagnosing procedure is completed without any problems detected

(within 1 second), all transmitter key functions and the receiver MAIN will be activated.

3. Alpha 540T/560T model  When the transmitter unit is turned “on” to begin work, the

LED-I will light up to indicate only the main hoist and/or trolley is activated. If you want to

activate the auxiliary hoist and/or trolley, press the "Select" pushbutton, and the LED

display will now switched from LED-I to LED-II to indicate that only the auxiliary hoist

and/or trolley is activated. Press "Select" again to have both main and auxiliary hoist

and/or trolley activated at the same time (both LED-I and LED-II lit). To switch back to the

main hoist and/or trolley activation, just press the "Select" pushbutton once again. (please

refer to section 3.3 on page 6)

Every time when the transmitter unit is turned “off” and then “on” again, the "Select "

setting will resets itself to LED-I (back to main hoist and/or trolley active)

4. Alpha 540T/560T model  "Select" setting can not be changed while other command

pushbuttons are in use (command pushbuttons pressed). To insure maximum safety,

"select" settings (I, II, I&II) can only be changed when all command pushbuttons are in

their neutral position (command pushbuttons not pressed).