11.2.4
Signals
Table 174:
TCSSCBR Input signals
Name
Type
Default
Description
TCS_STATE
BOOLEAN
0
Trip circuit fail indication from I/O-card
BLOCK
BOOLEAN
0
Block of function
Table 175:
TCSSCBR Output signals
Name
Type
Description
ALARM
BOOLEAN
Trip circuit fault indication
11.2.5
Settings
Table 176:
TCSSCBR Non group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Off
On
-
-
On
Operation Off/On
tDelay
0.020 - 300.000
s
0.001
3.000
Operate time delay
11.2.6
Operation principle
The function can be enabled and disabled with the
Operation
setting. The
corresponding parameter values are "On" and "Off".
The operation of trip circuit supervision can be described by using a module diagram.
All the modules in the diagram are explained in the next sections.
GUID-9D3B79CB-7E06-4260-B55F-B7FA004CB2AC V1 EN
Figure 116:
Functional module diagram
Trip circuit supervision generates a current of approximately 1.0 mA
through the supervised circuit. It must be ensured that this current will
not cause a latch up of the controlled object.
1MRK 504 135-UEN A
Section 11
Secondary system supervision
255
Technical manual
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