System information

6. Interlocking Pushbuttons _ For both F & D models, the top 3 sets of motions are interlocked to its

self so no conflicting commands can take place for safety purpose. For example, pressing the hoist

“UP” and “DOWN” pushbutton simultaneously will result in no command being sent (depending on

JP3 setting on page 17).

7. Initial Start-up Code_ Please note that, if JP1 is shorted (without START function), the receiver unit

hence must received an “Initial Startup Code” from the transmitter in order for it’s MAIN relay to

be energized. What this means is that the transmitter can only activate the receiver MAIN relay as

long as the operator is within the receiving range. For example, if the operator turned “on” the

transmitter in a different area of the facility (beyond 300 feet from the receiver location), then he will

not be able to control the crane when he approached within 300 feet. If this happens, the operator

would have to resent the initial startup code by reenact the Startup Procedure.

8. Shutting Off the Transmitter _ To disconnect the transmitter power, just pull out the transmitter

power key. It is also recommended that prior to disconnecting the transmitter power, also activate the

emergency stop by pressing down the red EMS button, this will deactivate the receiver MAIN relay.

After the red EMS button is depressed, then pull out the transmitter power key. Please note that if the

power key is not pulled out after EMS activation, then the transmitter will continued to send the

“Stop” command to the receiver until the transmitter power is completely drained. Also, if the red

EMS button is not depressed prior to disconnecting the transmitter power, the receiver MAIN relay

will still drop (open) after 5 minutes (depending on JP2 setting on page 17).

9. Battery Replacement _ The transmitter Status LED will display a blinking red light that is “on” 0.1

second and off “2.0 seconds when the transmitter battery power falls below the safety operating

voltage, please refer to the table on page 25 for transmitter status LED display information. For

battery replacement, just unscrew the battery cover located on the backside of the transmitter handset

with a (+) head screwdriver (refer to the diagram below). When changing batteries, do make sure that

the batteries are installed correctly. The marking inside the battery holder will tell you which side is

positive (+) and which side is negative (-). The battery holder will also tell you which side of the

holder is facing up and which side is down.