Mov-A-Load Corporation PJCKM1T 사용자 설명서

 

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TRANSMITTER, RECEIVER, ON & OFF PUSHBUTTONS, LEDs, & WIRING HARNESS 
THEORY OF OPERATION 
 

 
The PROJACK M1 unit is controlled by a remotely operated handheld transmitter.  The transmitter has 
eight (8) pushbuttons and one (1) LED.  There are six (6) pushbuttons that control the three (3) gearmotors 
on the main unit.  There is a pushbutton that controls the illumination LEDs and there is a pushbutton that 
will turn off the power on the main unit.  The LED on the face of the transmitter should illuminate green 
when any button is pressed.  This indicates that a signal is being sent to the receiver in the main unit.   
 
A readily available CR2450 coin battery, located beneath the battery cover, powers the transmitter. 
 

 
When any button on the transmitter is pressed, an electronic signal is sent to a receiver inside the unit.  The 
receiver interprets the signal and then commands the appropriate relays/switches to open or close. These 
relays/switches control current to the three (3) gearmotors and illumination LEDs.  The receiver, 
relays/switches, and other related electronic components are mounted on a printed circuit board (PCB).  
This receiver PCB is located under the PCB cover at the top of the unit. 
 
There are two pushbuttons mounted on the front of the PCB cover (one with a black protective cover and 
one with a red cover).  The pushbutton with the black cover is used to turn ON the receiver.  The 
pushbutton with the red cover is used to turn OFF the receiver.  These pushbuttons are wired to the receiver 
PCB with a detachable connector. 
 
The receiver PCB has an automatic time delayed OFF feature.  If the receiver doesn’t detect a signal from 
the transmitter for 1½ minutes, the unit will automatically turn itself OFF. 
 
There are seven (7) LEDs located of the front of the PCB cover.  The six (6) upper LEDs combine to form 
an illumination light and are controlled by the LIGHTS pushbutton on the transmitter.  The seventh LED, 
located just above the ON & OFF pushbuttons, is an operating condition indicator.  This LED should 
illuminate green after the ON pushbutton has been pressed.  Whenever the receiver is detecting a signal 
from the transmitter, the operating condition LED should flash green.  If a problem (such as an overload on 
the lift motor) is detected by the electronic components on the receiver PCB, the operating condition LED 
should illuminate red.  All seven (7) LEDs are mounted to a PCB.  The LED PCB is wired to the receiver 
PCB with a detachable connector.