Settings Menu - Siemens 7SR51 Device Manual

Supervision Functions
6.4 74CC Close-Circuit Supervision
Scheme 2 (Intermediate)
[dw_7SR5_function74TCSettingExample2, 1, en_US]
Figure 6-9
Scheme 2 provides continuous trip‑circuit supervision of the trip coil with the circuit‑breaker Open or Closed.
It does not provide pre-closing supervision of the connections and links between the tripping contacts and the
circuit‑breaker and may not therefore be suitable for some circuits which include an isolating link.
Scheme 3 (Comprehensive)
[dw_7SR5_function74TCSettingExample3, 1, en_US]
Figure 6-10
Scheme 3 provides full trip supervision with the circuit‑breaker Open or Closed.
6.4.5

Settings Menu

Functions > Function Config
Parameter
74CC Close‑Circuit
386
Trip‑Circuit Supervision Scheme 2 (H6)
Trip‑Circuit Supervision Scheme 3 (H7)
Range
Enabled
Disabled
Settings
Default Gn1 Gn2
Disabled
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019
Gn3 Gn4