ProMinent DULCOMETER Compact - Power Relay P-REL as Limit Value Relay

10.8 Power relay "P-REL" as
limit value relay
The power relay ‘P-REL’ can be config‐
ured as a limit value relay. It always act
only on the measurement variable,
whereby the limits are set in ‘LIMITS’ .
The relay is activated upon infringement
of either the top or lower limit values.
Constant checking is carried out to deter‐
mine whether a limit has been infringed
and if this is interrupted with the power
relay configured
‘P-REL= limit’ for at least
‘DELAY ON’ seconds, then the relay is
activated. If the limit value transgression
disappears for at least ‘DELAY OFF’ sec‐
onds, then the limit value relay is again
deactivated.
The limit value relay is deactivated imme‐
diately upon:
‘STOP’ , user calibration,
‘PAUSE’ and ‘HOLD’ .
Control parameters and functions
85