Flex EX2 Receiver Select Instruction Manual
August 2018
Page 31 of 39
5 Receiver Installation
5.1 Output Relay Contact Diagrams
5.1.1
Flex 4EX2
• For 9-36VDC power supply, wire #1 corresponds to the negative charge (-) and wire #3 corresponds to
the positive charge (+). Wire #2 is for GROUND.
• Due to the possibility of voltage spikes on the contactors, suppressors are required on contactors being
driven by Flex relays.
• FUNC1 (K25) is set to Normal by default. It will become a normal momentary output after the initial
START command.
• FUNC 2 (K26) is set to RS by default. It will become a latched output on any and all receivers that are
selected by the transmitter.
5.2 Pre-installation Precautions
1. Make sure the transmitter and receiver have the same serial numbers and are set to the
same channel.
2. Make sure the receiver is not set to the same channel as any other systems in use in the
surrounding area.
3. Make sure the crane or equipment is working properly prior to installation.
4. Make sure the power source to the receiver is set correctly.
5. Switch off the main power source to the crane or equipment prior to installation.
