Samson 611 Mounting And Operating Instructions page 40

Malfunctions
Malfunction
i/p converter constantly
vents off air loudly
i/p converter does not
reach 100 % output
e.g. 20 mA input:
output only 70 %
instead of 100 %
Note
Contact SAMSON's After-sales Service for malfunctions not listed in the table.
40
Possible reasons
Connections for supply
air and output at the i/p
converter mixed up
Supply pressure too low.
Input signal faulty
Consumption of air
capacity too high.
Corrective action to be
taken
Check pneumatic
connections (see
section 7.2 and
section 5.4).
Supply air must be
0.4 bar higher than the
max. output signal
(supply air = 0.4 bar)
Check whether the input
signal at the terminals
reaches 100 % (100 % is
e.g. 20 mA in standard
version and 12 mA for
split-range operation)
Adapt consumption of
the air capacity
according to the
technical data (see
section 3.2).
Comments
–
Read nameplate: output
0.2 to 1 bar → Supply
air at least 1.4 bar
NOTICE The i/p
converters have a load
of max. 6 V (standard
version) or max. 7 V
(Ex ia version).
Check specification
concerning permissible
load at the source of the
input signal.
–
EB 6116 EN