Spltrng - Burkert 8630 Operating Instructions Manual

SPLtrng

Splitrange; minimal and maximum values of the input signal (in %) generating the complete displacement of the valve all over the
plug range.
Factory setting:
This additional function enables the set value range of a positioner to be restricted by stipulating a minimum and maximum value.
This makes it possible to divide the used unit signal range (4..20 mA, 0..20 mA, 0..10 V oder 0..5 V) over several positioners
(without or with an overlap). In this way, several valves can be partially used either simultaneously or in sequence as a final
controlling element (Fig. 6.12).
Fig. 6.12: Splitting a unit signal range into
two set value ranges
106
SR = 0 (%); SR = 100 (%)
Plug travel [%]
Entry of the minimal value of the input signal in % (0... 75 (%)
of the measuring range)
Entry of the maximum value of the input signal in %
(25... 100 (%) of the measuring range)
Setpoint range Setpoint range
positioner 1 positioner 2
Setpoint
[mA]
Operating instructions no. 800607