brookfield NB-4000 Door Operator Installation Instructions
Although each Door Operator has been fully inspected and tested prior to shipment, assure that no
physical damage has occurred during shipping and handling.
Premature failure
of the ball screw/nut
assembly
may occur if it’s not installed properly.
1. Drill and tap mounting holes for the beam and carriage per layout on drawing
NB-4000-AA
.
Position
NB-4000 Door Operator
on top of beam per drawings
NB-4000-BB
or on side of beam
per
NB-4000-CC
.
2. Install (8) 1/8” slotted and tabbed shims at each beam mounting bolt. This will allow for 1/8” minus
adjustment, if necessary. Properly tighten the (8) 3/8” x 16 mounting bolts and lock washers.
3. Mount
Ball Nut Attachment Bar
(1” x 4” aluminum) to the carriage with (8) 3/8” x 16 socket head
cap screws and assure they are properly tightened.
4. Measure the height from the
Rigid End Blocks
to the machined surface of the linear motion
system. This dimension is shown as DIM. B on drawing
NB-4000-BB
or
NB-4000-CC
at each end
of the ball screw. Now measure DIM. A, the distance from the
Ball Nut Mounting Block
to the
machined surface. The difference between DIM A and DIM B, shall not exceed 1/8”. If required,
adjust the height of the
Rigid End Blocks
with the shim pack included.
5. Measure the height from of the
Ball Nut Attachment Bar
at (2) locations, DIM C and DIM D (see
NB-4000-BB and NB-4000-CC
). The difference between DIM C and DIM D shall not exceed 1/16”
(shim as required).
6. Check lateral alignment of ball screw centerline with the centerline of the linear motion system.
Over the 116.25” distance, the maximum deviation shall not exceed 1/8” off the linear motion
centerline (see
NB-4000-AA
).
7. Check lateral alignment of ball nut attachment bar (1” x 4”) to the centerline of the linear motion
system by employing the same techniques as previously mentioned for the ball screw. The
maximum deviation across the attachment bar length shall not exceed 1/16” for bars 28” long and
less (see
NB-4000-AA
).
8. Install
Emergency Hand wheel
NEMA 1 box and flex shaft as indicated on
NB-4000-21
.
9.
Caution:
To prevent risk of serious injury, assure source voltage has been disconnected and all
“Lock-Out” Safety Procedures have been strictly adhered to.
10.
Caution:
Hookup 115 VAC supply voltage (230VAC supply voltage for European installations) and
grounding per
Terminal Strip Hookup
the applicable
Wiring Diagram
and
/
or
local codes.
11. Connect DC motor leads to Class (2) 24VDC positive battery post.
12. Connect all Class (2) (24) VDC inputs per the
Terminal Strip Hookup
and the
Wiring diagram
including required
External Safety Devices
(not included with operator)
that
comply with the
Entrapment Protection
of
UL 325 Section 30.2 (Fail Safe/Self-Monitoring)
.
13. These devices are door mounted,
4-wire reversing edge contact type sensors
that reverse the
door while closing.
Note:
The door will not be allowed to close unless these sensors are
correctly wired per this manual
. When installing contact type sensors, assure that they are
properly secured to the leading edge of the door and that a sufficient quantity of sensors are
properly spaced and are of adequate length to assure safe operation.
14. Attach the limit switch provided for battery backup end of travel mode. This should be between 1-2”
past the fully open position, when properly adjusted. Assure adequate clearance exists between
the door carriage and the door operator mounting plates, once the limit switch has been activated.
15. Connect the (2) unattached leads to the positive terminal of the battery.
16. Disconnect “Lock-Outs” and turn on power supply breakers.
17. All PLC and motor control settings have been preset by brookfield industries, inc.; however, we
recommend these values be double-checked with the
Parameter for NB-4000
sheet supplied.
18. Assure external speed “Pots” are set to the 10-20% range activating the operator.
