ABB REG650 ANSI, Technical Manual

Page: 325 / 728

11.2.4 Signals
Table 204: 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 205: TCSSCBR Output signals
Name Type Description
ALARM BOOLEAN Trip circuit fault indication
11.2.5 Settings
Table 206: 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 162: 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 502 048-UEN A
Section 11
Secondary system supervision
319
Technical manual