Quick Start Guide; Setup - Bray BBU Installation & Maintenance Manual

Battery Backup Unit (BBU) —

Quick Start Guide

1 1
Remove
Battery Cover
2 2

Setup

To gain access to the BBU electronics module, the BBU
battery cover must be removed by loosening the 4 screws
which hold the battery cover in-place as shown in Figure 1.
Carefully lift the battery cover and then let the cover hang
to the side of the mounting base. The BBU electronics mod-
ule is now accessible as shown in Figure 2. With the BBU
cover removed, the unit can be commissioned with the
appropriate field wiring and fail position settings.
The BBU supports both Modulating and On/Off services.
The operating mode is determined by the field wiring
connection to both the BBU and Servo NXT & On/Off
Controller. The following sections describe how to config-
ure the BBU for the available operating modes.
Activate Batteries
See page 7
Installation & Maintenance Manual Continued
3 3
Power & Command Signal
Connect Power and Command Signal
per the respective wiring diagrams
found on pages 18 to 20 of this
document or on the lid of the actuator.
Replace Battery
Cover & tighten
down screws
Figure 1 - Battery housing removal
6