User's Manual

Flex 4ES/EX Instruction Manual
September 2016
Page 32 of 37
6. Operating Procedures
6.1. General Operation
a. Reset the STOP button located on the top left hand corner of the transmitter by
rotating it clockwise or counter clockwise, the button will pop up. Turn on the
transmitter power by inserting the power switch key and rotate to ON ( I ) position.
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b. After turning on the transmitter power, check the Status LED on the transmitter for
any sign of system irregularities (refer to section 6.6.1 Transmitter Status
Indications). If the transmitter is in good working order the Status LED will display
constant green for up to 2 seconds at power on (no faults detected).
c. Rotate the power switch key further to the START position and hold it there for up
to 2 seconds (Status LED constant green). When the receiver MAIN relays are
activated the Status LED will change from constant green to constant orange
(system on). The power switch key will retract back to the ON ( I ) position when let
go. The same START position becomes an auxiliary function thereafter (refer to
section 4.2.2.3 START + AUX Function). Pressing any pushbutton prior to
executing the START command at system startup will result in no signals
transmitted (Status LED blinks orange).
d. Now press any pushbutton on the transmitter to begin operation. During
transmitter inactivity (pushbuttons not pressed), the transmitter will automatically
switch to standby mode, with an orange blink on the Status LED every 4-second
interval. Always turn off the transmitter power when not in use to save battery
power.
e. In case of an emergency, press down the STOP button to disconnect the receiver
MAIN relays (Status LED blinks 3 reds and then shuts off). To resume operation,
rotate the STOP button clockwise or counter clockwise, the button will pop up.
Then execute the START command to reconnect the receiver MAIN relays. For
safety, executing the START command is strictly required every time when the
transmitter is turned on or after every STOP button reset.