FCU 8000 series
Electrical connection of the FCU
HYDAC FILTER SYSTEMS GMBH
en(us)
Page 25/112
BEWA FCU8000 3109776d en-us 2011-06-10.doc
2011-06-10
Relay Functions
The following tables show the switched position of the relays in the various
operating modes in keeping with the operating condition or measurement result.
Relay 1
Relay 2
6
7
8
6
7
8
13
14
15
13
14
15
M1
Measurement
currently in
progress
Measurement
stopped
After the first
measured
value is
available: Flow
error
Flow rate
within set
range
M2
Exceed
Measured
value
≥
upper
limit
After switch-on
or start of a
measurement.
Goes out again
when
measured
value
≤
lower
limit
Measured
value
≥
upper
limit
After switch-on
or start of a
measurement.
Goes out
again when
measured
value
≤
lower
limit
Fall below
≤
lower limit
After switch-on
or start of a
measurement.
Goes out again
when
measured
value
≥
upper
limit
≤
lower limit
After switch-on
or start of a
measurement.
Goes out
again when
measured
value
≥
upper
limit