ABB ret650 - Signals; Settings; Operation Principle

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
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Technical manual