Overview
The brookfield NB-1000 Main/Sub Swinging Door Operator has been designed,
tested and is manufactured by brookfield industries, inc. in accordance with UL
325 and ANSI 156.10 for linear accelerator swing doors weighing up to 12,000
lbs and 75” wide. The NB-1000 can be expected to safely operate doors at the
maximum weight and width for at least 500,000 cycles, providing the door is set
within the ANSI 156.10 speed criteria and the rated operating torque of 2250 lb-in
(reflected to the operator) has not been exceeded. If any one of the following:
torque, weight, width or cycles exceeds the rated value, please contact the
Engineering Department for further evaluation.
The Main/Sub operator is intended for use on double doors with an astragal and
is designed to open the Lead Door first and close it last, while the Follow Door
opens last and closes first. The Lead Door and Follow Door can be setup as
either the left hand or right hand operator. The Main Operator is designated as
the right hand operator, while the Sub is always the left hand. The Master
Operator houses a common CPU (Central Processing Unit), Analog/Digital
Converter and Class (2) 24 VDC Power Supply as well as a common Terminal
Strip for hookup of input commands. All other components such as the Motor
Control, Drive Train and Rotary Position Transducer are independent to each
operator.
The CPU has been uniquely programmed to assure the doors remain in
sequence during the closing cycle if one or both doors are in the Entrapment
mode. The CPU program has been modified to automatically close the doors.
The time the doors stay open can range from 0-300 seconds. This setting is
titled Closing Time on the Data Access Unit (DAU). If you do not want the
automatic closing time feature, simply type in the value 301 or higher and the
automatic closing time will be disabled.
This power open/power close electro-mechanical operator with its state of the art
components, make it the strongest and most compact in the industry today.
Refer to the Wiring Legend for Terminal Strip Hookup for all open, close, stop
and safety device inputs, which are all Class (2) 24VDC momentary contact
(except terminal 9 which must be a maintained contact). Power supply hookups
for both Class (2) 24VDC and 110VAC are also indicated. The PLC then
processes all this information, in addition to many other features for proper
control of these heavy lead doors. This door operator is patented under US
Patent No. 6,177,771 B1.
We are Authorized to Mark the NB-1000 with the ETL (US and Canada), and CE
markings from Intertek Testing Services to assure compliance with UL
325(Control No. 3011624), FCC Part 15 (Emissions) and the following
International Standards: EN 60335-1 and -2 (Safety), EN 61000-6-2 (Immunity),
EN 61000-6-4 (Emissions), CAN/CSA-C22.2 and ICES-003. The “listing”
reports specifically refer to the heavy commercial/industrial doors associated with
linear accelerator rooms.
