Seg WIC1 User Manual

4.13 Integrated Backup Phase Overcurrent Protection
The WIC1 has an additional integrated backup phase overcurrent protection (short: backup
protection). It is activated automatically if the WIC1 detects a device-internal (hardware
or software) error that still persists after several automatic restarts. This is not a typical
protection function, that can be activated or deactivated at any time, but it is a special
hardware-based operating mode of the WIC1. It guarantees some minimum protection
functionality in case of a permanent device-internal problem. In this operating mode,
there is only the backup phase overcurrent protection active, all other functionality is
switched o󰊞. The WIC1 indicates this by the “System Error” LED being continuosly lit up.
(See also ╚═▷ “4.13.1 Activation of the Backup Protection”, ╚═▷ “The »System« LED(s) –
“Ready”, “Error””.)
The backup protection operates independent of the 󰊟rmware. Therefore no settings are
available, nor any kind of fault signaling (e.g. via SCADA or LEDs or fault recorder).
• The device variants WIC1‑xxxxxx1 (see ╚═▷ “2.6.1 Order Form of the Device”)•
output a trip pulse as soon as there is su󰊡cient electrical energy for this
(≲ 0.8⋅In,min).
•
For device variants WIC1‑xxxxxx2, the pickup threshold is approx. 20⋅In,max.
•
The trip pulse is given after a delay of approx. 40 ms.
Backup Protection
wiBackupPOC_Y01
20 ⋅ In,max
IL1
IL2
IL3
≥1
40 ms
t
0
Hardware Option /
Device Variant
Directly
Threshold 20 In,max
&
&
≥1
53
Backup Protection . Trip command
4
“Error”
Please Refer To Diagram: wiProtGeneral_Y07
1
System . Prot. Ready
(Device has enough energy for trip pulse)
&
Fig. 64: Integrated Backup Phase Overcurrent Protection
174 WIC1 WIC1-1.0-EN-MAN
4 Protective Elements
4.13 Integrated Backup Phase Overcurrent Protection

Seg WIC1 Specifications

General

Brand	Seg
Model	WIC1
Category	Relays
Language	English