Flex 8EX / 12EX EU System Instruction Manual
March 2018
Page 56 of 66
1. For best reception, the location of the receiver should be visible to the operator at all
times.
2. The location selected should not be exposed to high levels of electric noise. Mounting the
receiver next to an unshielded variable-frequency drive may cause minor interference.
Always locate the receiver as far away from a variable-frequency drive as possible.
3. Ensure the selected location has adequate space to accommodate the receiver. If an
external antenna is used, always locate the receiver where the antenna is free from any
obstacles from all directions to avoid the possibility of antenna damage (
see Fig. 28
).
Fig. 28
4. When installing an external antenna, you must connect the SMA jack located inside the
receiver and make sure to set the jumper to “EXT” position (
see Fig. 29
).
Fig. 29
5. For better reception, make sure the receiver is in an upright position.
6. Drill two holes (10 mm in diameter) on the control panel or location where the receiver is to
be installed (
see Fig. 27
).
7. Make sure the two bolts are tightened after installation.
8. Install suppressors on all contactors being driven by Flex relays. This is due to the
possibility of voltage spikes on the contactors.
9. For system wiring,
see Section 6.1 on page 53
.
432 mm
Control
Panel
