Enrange Pre-Engineered MLTX Transmitter Instruction Manual
February 2011
Page 11 of 20
Sections 2-1. through 2-8. Describe the functional operation of the MLTX. Please refer to Figure 1 for
typical Pre-engineered MLTX Control Layouts.
2.2: “ON-OFF” PUSH-BUTTON (TURNS TRANSMITTER AND RECEIVER ON OR OFF)
Pressing the ON/OFF push-button switch turns the transmitter and the receiver on. If the transmitter is on,
the BATTERY light is on or flashing. Pushing the ON/OFF pushbutton again will turn the transmitter and
receiver off. If the transmitter is out of range of the receiver, the receiver will not turn off until it times out
(for those units with receiver time-out-timer set active).
2.3: “E-STOP” (FOR EMERGENCY STOPPING ONLY)
When depressed, all equipment movement is immediately stopped. Under normal operating conditions, the
E-STOP must be in the raised position. The transmitter must be turned off and on again to restore normal
operation. The E-Stop is to be used for emergency stopping only, not for normal system shut down. The E-
STOP will not function with the optional key switch turned off.
2.4: “BATTERY ” TRANSMITTER LED INDICATOR
The transmitter LED (red) indicates on, transmitting and low battery voltage. A slow flash rate indicates the
unit is on. A rapid flash rate indicates a unit is transmitting (when a function or control is activated). If the
battery goes below a safe level the, the LED will not light. Replace the battery immediately.
2.5: LEVERS
To activate motor functions, press and hold the push-button or lever that corresponds to the desired motion.
To activate higher speed functions, for those models so equipped, press the motion switch or lever further.
2.6: “A, B, OR BOTH” ROTARY SELECTOR SWITCH
(Only for systems with one lever for Main and Aux Hoist or Trolley)
This rotary selector switch is used with the main and auxiliary hoist/trolley. Position “A” activates the
hoist/trolley lever to control only the main hoist/trolley. Position “B” activates the hoist/trolley lever to
control only the auxiliary hoist/trolley. Position “BOTH” activates the hoist/trolley lever to control both the
main and auxiliary hoist/trolley at the same time, in tandem.
2.7: “IND OR TANDEM” ROTARY SELECTOR SWITCH
(Only for systems with two separate levers, Main and AUX, for Hoist and/or Trolley)
This rotary selector switch is used with the main and auxiliary hoist. In the “IND” (Independent) position,
the main hoist/trolley and aux hoist/trolley are controlled by their respective levers only. In the
“TANDEM” position, the main hoist/trolley lever controls both the main and auxiliary hoist/trolley at the
same time in tandem.
2.8: “AUX 1, AUX 2, AUX 3 AND AUX 4” AUXILIARY SWITCHES
These switches activate special function relays that control items such as alarms or lights depending on
how the receiver is wired. The switches are momentary and activate the function as long as the switch is
depressed.
