Operation and maintenance instructions
Series PME CANopen proportional pressure
regulator
5000054187
Ver. 01
55
•
Bit 7, warning window control;
•
Bit 8, warning switch control;
•
Bit 9, warning no activation valve;
•
Bit 10, warning valve diagnostic;
•
Bit 11, warning under-voltage.
•
Bit 12, warning target out of range
11.5.1.11.
200Eh Dead band
This parameter sets the dead band value for the regulated pressure. When this parameter is set to
a value higher than 0, the regulator will not make any adjustment as long as the absolute error of
the regulated pressure (difference between the regulated pressure and the target pressure) remains
lower than the set dead band value (red line).
On the other hand, when the absolute error of the regulated pressure exceeds the value of the set
dead band, the regulator returns to carry out normal regulation (green line).
This operating mode makes it possible to avoid continuous adjustments by the regulator, increasing
its life cycle. On the other hand, the achievement of the target pressure according to the declared
performance is not guaranteed: the adjusted pressure error will depend directly on the dead band
value set.
The unit of measurement of the parameter depends on objects 200Bh and 200Ch; the default unit
of measurement is the mBar.
11.5.1.12.
200Fh Enable pressure switch control
This object enables the "Pressure Switch" control on the pressure reading, it can be 0 = Disable or 1
= Enable. With this operating mode it is possible to set two fixed pressure thresholds, lower one and
an upper one: if the regulated pressure is outside the range delimited by the two thresholds set, the
Controller will signal the event with a warning, but will not interrupt the regulation. In this case the
diagnostic led will not change its status.
D
ead
band
D
ead
band
Regulation
Target pressione
No Regulation
Regulation
