9 – 84
Settings
Indicators
Testing
In addition, a special test feature of the ZSI module (rotary coding switch in TEST position) makes it possible to check the ZSI wiring and the
operativeness of the ZSI electronics.
9.2.3.3 Digital input module
Function
With the digital input module, up to 6 additional binary signals (DC 24 V) can be connected to the system.
These input signals are transferred to the PROFIBUS-DP / MODBUS via the
c
, and can be evaluated accordingly.
For trip units ETU776, it is possible as an alternative to use an input signal of this type at input 1 to switch between two different sets of pro-
tection parameters (if provided).
Installation
Connection
A maximum of two digital input modules can be operated on the
c
at the same time
- 1 module with the "BUS INPUT" setting
- 1 module with the "PARAMETER SWITCH" setting
Settings ZSI module
OFF
ZSI function deactivated
S
ZSI module effective for short-time delayed short-circuits only
G
ZSI-module effective for ground-fault protection only
S+G
ZSI-module effective for short-time delayed short-circuits and ground-fault
protection
TEST
Test position for checking the ZSI functionality
Summary of Contents for UL 1066
Page 56: ...7 5 7 2 Frame size II fused ...
Page 58: ...7 7 ...
Page 63: ...7 12 8 27 210 0 8 27 210 0 8 27 210 0 3 75 95 2 ...
Page 64: ...7 13 ...
Page 65: ...7 14 7 7 Frame size III fuse carriage ...
Page 66: ...7 15 ...
Page 69: ...7 18 7 9 External sensor for neutral conductor WLNCT2 ...
Page 70: ...7 19 WLNCT3 ...
Page 85: ...9 5 I tripping Ground fault tripping ...
Page 231: ...15 12 Pre assembling the locking module Installing 0767 1 2 3 4 6 5 ...
Page 232: ...15 13 1 Socket head cap screw M5 with washer and nut 7 8 Size 4 5 Nm 45 lb in ...
Page 289: ...23 7 23 3 3 Installing arc chutes 1 2 6 5 PH 2 0043 02 3 4 5 6 For frame size III 3 PH 2 ...
Page 298: ...23 16 6 7 8 9 5 2 1 Size 5 mm ...
Page 333: ......