8.7. Arc protection module (option)
Figure. 8.7. - 183. Arc protection module for four light sensors, two high speed outputs and one binary input.
Table. 8.7. - 239. Arc protection module connections
Connector
Description
S1
Light sensor channels 1…4 with plus, sensor and ground connectors.
S2
S3
S4
SlotX 1
HSO1 + NO
SlotX 2
Common b for HSO
SlotX 3
HSO2 + NO
SlotX 4
Arc BI1 + pole
SlotX 5
Arc BI1 - pole
Arc protection module is an add-on module with four (4) light sensor channels. This module also has
two (2) high speed outputs and one (1) binary input. This module can be ordered directly as factory
installed option or it can be eld upgraded if needed after the rst installation of the IED.
In case any of the sensor channels S1…S4 is connected incorrectly it won’t work. Each channel can
have up to three light sensors connected in series. User can choose how many channels are used.
High speed outputs HSO1 and HSO2 operate only with DC supply. Battery plus (+) has to be wired
according the drawing and output 1 or 2 NO side is wired trough trip coil to battery minus (-). High
speed output voltage withstand is up to 250VDC. For further information see the technical data
chapter of the manual. High speed output operation time is less than 1ms.
Binary input rated voltage is 24 VDC. Threshold picks up at
≥
16 VDC. Binary input can be used for
external light information or similar applications and can be used as a part of various ARC –schemes.
Notice that the delay of binary input lies between 5…10ms.
BI and HSO1…2 are not visible in
Device IO
→
Binary Inputs
or
Binary Outputs
-menus. Binary input
and high speed outputs are programmable only in Arc Matrix menu.
AQ-T257
Instruction manual
Version: 2.00
© Arcteq Relays Ltd
318
