Festo CMMT-ST-SW, Original Instructions Manual

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Parameters Index.Subindex Name Data type
Px. Manufacturer-specific objects: saved basic unit for the object is effective.
10191 0x2140.01 Activate PNP input and output behaviour UINT8
10192 0x2140.02 Inversion of the inputs active BOOL
10193 0x2140.03 Inversion of the outputs active BOOL
11201 0x212F.0A Digital input X1A.7 UINT32
11202 0x212F.0B Digital input X1A.8 UINT32
11203 0x212F.0C Digital output X1A.9 UINT32
11204 0x212F.0D Digital output X1A.10 UINT32
11205 0x212F.0E Digital input X1C.2 UINT32
101200 0x218A.01 Reference switch configuration UINT32
1128054 0x2195.02 Digital outputs CiA402 UINT32
Tab. 156 Objects
3.4 Protective functions
3.4.1 I²t monitoring of the power output stage
The “I²t monitoring of power output stage” protective function is used to protect the power output
stage from thermal damage due to an excessive dissipation of electrical energy.
In the process, the limit values of a certain warning threshold and upper limit are monitored. When the
respective limit value is reached, a diagnostic message is triggered. After the upper limit is reached,
the current is limited to the nominal current. The limitation to the nominal current is automatically res-
cinded when the integrator value of the I²t monitoring is set to 0.
An electrical rotational frequency
£
5 Hz at the output of the power output stage is monitored by a
short I²t time and separate diagnostic messages.
Parameters and diagnostic messages
ID Px. Parameters Description
Specifies the scaling factor for the start value based on the limit
value of the I²t monitoring of the power output stage at stand-
still.
Access read/−
Update effective immediately
637 Scaling factor start
value I²t monitoring
power output stage
Unit −
Product configuration
184 Festo — CMMT-ST-SW — 2019-02