IDEC FL1E SmartRelay - Manual (Page 57)

IDEC SmartRelay installation and wiring
IDEC SmartRelay Manual 43
FL1B-J2B2
Note
Fluctuating analog values are due to screening on the connecting
wire from the analog valuator device to the analog FL1B-J2B2
expansion module (encoder wire) that has either been mounted
incorrectly or not at all.
To avoid fluctuating analog values when using these expansion
modules, proceed as follows:
• Use only shielded encoder wires.
• Shorten the encoder wire as much as possible. The encoder
wire must not be more than 10 meters long.
• Clamp the encoder wire on one side only and clamp it only to
the PE terminal on the FL1B-J2B2 / FL1D-K2B2 / FL1D-K2BM2
expansion module.
• Connect ground on the encoder supply to the PE terminal on the
expansion module.
Internal
Circuit
Analog Input (0-20mA)