Danfoss OVR Override Box Installation guide

Identification

General Information

INSTRUCTIONS

OVR Override Box

The OVR board is designed for 3” snap track mounting. It

can be mounted (1) inside of a Danfoss I/O enclosure, or

(2) in control panels where codes and good electrical

practice permit.

The OVR enclosure door is hinged on the left side. Install

the box so there is no interference with the door opening.

Each OVR connected to an AKC 55 must have a unique

address starting with 01. Each address switch has an

arrow pointer which is also a screwdriver slot for setting

the address.

4/99 Danfoss Inc. BOVR.499 [OVRInstall]

Up to 95 I/O nodes (OI8, RO8, SI8, AKC 16x Smart Case

Controllers, etc) can be connected to one AKC 55.

A maximum of 5 cable runs (1 shown) can be used to

connect any combination of nodes to the AKC 55.

The total length of all I/O cable runs (including stubs) is

limited to 5000 feet. Use point-to-point (“daisy-chain”

connections between boards.

The last I/O board on each cable run must be terminated.

Terminations are supplied with the AKC 55 controller as

shown.

When necessary, individual I/O boards can be placed on

individual stubs up to a maximum of 25 feet long off a main

cable run.

I/O Network Configuration