PROFIBUS-DPV1 functions
139
11/04 MN01219002Z-EN
Circuit-breaker new parameters object
This object is used for accepting new parameters to be used
by the circuit-breaker.
This object is a write only object. It can be accessed by
class 1 and/or a class 2 DPV1 master.
Intended usage
Use this object in order to transfer new parameters with
regard to
• Limitation value and delay time of the overload release,
• Limitation value and delay time of the short-time delayed
short-circuit release,
• Limitation value of the non-delayed short-circuit release,
• Limitation value and delay time of the residual-current
protection module,
• Characteristic curve used for the short-circuit protection
(
I
2
t
)
to the circuit-breaker.
h
The Table 22 to Table 25 can be found in Section “Circuit-
breaker diagnosis data records object 1 to 10”, from
Page 118.
h
The parameters available depend on the type of electronic
control unit used. Settings for non-existent parameters are
not effective.
Caution!
Writing to this object has the immediate effect of
exchanging the parameters used up to this point with the
new parameters which are transferred. This has the effect
of modifying the trip characteristics of the circuit-breaker
to correspond to the new parameter values. Please
proceed carefully with the selection of the new parameter
values and when calling the Write service for this object.
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