Battery Backup Unit - Bray SERIES 70 Installation, Operation And Maintenance Manual

Installation Procedure:
Turn off all power and lockout/tag out service panel
before installing or modifying any electrical wiring.
The local control station is mounted to the S70 against
the conduit openings using 4 pre-drilled and tapped
mounting holes .
1 . Remove the S70 actuator cover and set aside in a
safe location .
2 . Remove all conduit plugs and external connections
on the S70 that may already be in place .
3 . Remove 4 short bolts and washers that were pre-
installed on the exterior of the S70 base, surrounding
the conduit entries .
4 . Adhere the gasket to the control station base .
5 . Slide o-rings onto the long mounting bolts until
flush with bottom of bolt head .
6 . Mount the control station to the actuator using the
4 mounting bolts .
7 . Wire the control station to the actuator in accordance
to the wiring diagram provided .
Power and control wiring should use separate conduit
entries
NOTES:
• The local control station contains no terminal strips
and all wiring is direct to the switches and lights via
2 x ¾" NPT or holes in bottom of housing .
• Ordering the control station with optional pin
connector receptacles will eliminate the necessity
of field wiring . Not all possible options are available
with receptacles . Consult factory .
• Control station will be completely factory wired
and tested .
• Factory will need wiring diagram drawing number
of the existing unit if it is to be retrofit with a local
control station . New wiring diagram will be provided
based upon this information .
• Local control station can be ordered with key lockable
switches .
• Local control station requires a dedicated set of
auxiliary switches . These switches are required for
turning on or off the lights on the control station
to locally indicate actuator position .
NOTICE
Installation, Operation and Maintenance Manual
• Alternative mounting kit can be ordered in case it is
preferred to mount the control station nearby but
not on the S70 actuator .

Battery Backup Unit

Bray offers a factory installable Battery Backup Unit
(BBU) for the 24 V Series 70 electric actuator .
In the event of power failure, the BBU will switch the
actuator to battery power to reach its fail position . After
the actuator has reached its fail position, the BBU goes
to 'Standby Mode' until external power is restored .
Once external power has been restored, the actuator
returns to the position corresponding to the control
signal present .
Figure 18. S70 with Battery Backup Unit.
Battery Backup Unit is available as a factory installable
option . For more information, please refer to the S70
24V Actuator with BBU Manual . This manual is available
on the company website (bray .com) .
Series 70 Electric Actuator
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