Laird Command Pro SAFE-T-RANGE User Manual
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Contents
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Command Pro Engineered SystemsUser Manual14 142134Multiple Receivers Controlled by Multiple Transmitters Option: One transmitter can control a maximumof six receivers with a rotary selector switch. A rotary switch is often used to select a particular hoist/trolleyA/both/B. It can also be used for crane select, i.e. East/West.5.6 Status Indicators5.6.1 Status LEDThe status LED indicates the transmitter operation. When the transmitter is operating normally, the LEDindicator emits short flashes at a low rate when no commands activate, and at a higher rate when acommand activates. Some transmitters use a red LED only. Others use a multicolored LED that flashes GREENwhen no problems are present and changes to RED when problems are encountered. See Status Chartbelow.Table 1: Transmitter Status ChartLED Indication Possible CauseLED is off. Transmitter is off – switch transmitter ON.Batteries are dead – replace batteries.Transmitter failure – call for service.LED flashes at low rate. Transmitter is operating in a normal mode.LED flashes at high rate. Command Switch is pressed.LED flashes Red/Green (‘A’series only).Batteries getting low. Change batteries at the nextconvenient opportunity.LED flashes on-off at a slowrate (½ second on and ½second off).Batteries getting low. Change batteries at the nextconvenient opportunity.LED remains oncontinuously (LED mightflicker slightly).A switch was activated at the time the transmitter wasswitched on, or a general failure occurred that requiresfactory service. Ensure no other switches are pressedwhile attempting to switch the transmitter on.LED will not light whenON/OFF button is pushed.Replace batteries. If this does not correct the problem, thetransmitter must be repaired.5.6.2 Function Select LEDsTwo LEDs are used on some transmitters to indicate which control functions are active (such as hoist trolley Aor hoist trolley B. These are commonly used with pilot relays). When both are illuminated, both controls areactive. When both LEDs go out, neither control is active. |
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