NORD Drivesystems B1000 - Manual (Page 732)

www.nord.com G730
General
Information
BRAKES
G1000 – Subject to Change Without Notice
Brake Torque Selection
Each NORD motor size has a number of brake torque
sizes available. The bold value in the table below is
the standard brake torque size for each motor.
Example for ordering: SK 32 - 80S/4 BRE 10
(BRE 10 indicates the unit has a brake torque size of 10 Nm)
CAUTIONS
BRE800 and BRE1200 brakes may only be controlled with a
fast reaction rectifi er (overexcitation), the maximimum per-
missible nominal currents of the rectifi er must be considered!
Motor
Frame
Units
Brake Size
BRE5 BRE10 BRE20 BRE40 BRE60 BRE100 BRE150 BRE250 BRE400 BRE800 BRE1200
63S/L
Nm 5 10 * 1)
lb-ft 3.7 7.4 * 1)
71S/L
Nm 5 10 *
lb-ft 3.7 7.4
80S
Nm 5 10 20 *
lb-ft 3.7 7.4 15 *
80L
Nm 5 10 20 *
lb-ft 3.7 7.4 15 *
90S
Nm 10 20 40 *
lb-ft 7.4 15 30 *
90L
Nm 10 20 40 *
lb-ft 7.4 15 30
100L
Nm 20 40 60 * 1)
lb-ft 15 30 44
100LA/4
Nm 20 40 60 * 1)
lb-ft 15 30 44 * 1)
112M
Nm 20 40 60
lb-ft 15 30 44
132S
Nm 60 100 150
lb-ft 44 74 110
132M
Nm 60 100 150
lb-ft 44 74 110
132SM
Nm 60 100 150
lb-ft 44 74 110
160M
Nm 100 150 250
lb-ft 74 110 185
160L
Nm 100 150 250
lb-ft 74 110 185
180MX/LX
Nm 150 250
lb-ft 110 185
200L
Nm 250 400
lb-ft 185 295
225S
Nm 400 800 * 2)
lb-ft 295 590 * 2)
250M
Nm 800 * 2)
lb-ft 590 * 2)
280 S/M
Nm 800 * 2) 1200 * 3)
lb-ft 590 * 2) 885 * 3)
+ weight
kg 2 3 5.5 7 10 16 22 32 50 80 100
lb 4.4 6.6 12.1 15.4 22 35 49 71 110 176 220
+ inertia
kgm 2 x 10 -3 0.015 0.045 0.153 0.45 0.86 1.22 2.85 6.65 19.5 39 39
lb-ft 2 x 10 -3 0.356 1.07 3.63 10.7 20.4 29.0 67.7 158 463 926 926
* IP66 – IP66 brake not possible.
1) Brake release lever “HL” and “FHL” not possible.
2) When used as a stopping brake, evaluation of brake work is essential.
3) Designed as holding brake or emergency stop brake only.
1 Nm = 0.738 lb-ft
1 lb-ft = 1.36 Nm
General Selection Considerations
NORD relies on the equipment builder to specify ap-
propriate brake sizing for their application, while
giving consideration to the following:
• For most applications, we advise sizing the brake to
1.5 - 2 times the motor rated torque.
• For vertical applications, it may be advisable to size
the brake size up to 3 times the motor rated torque.
• For some applications, it may be necessary to specify
a reduced brake torque setting to prevent, excessive
peak load conditions developed at the reducer output.
• On travel drive applications, excessive brake torque
may lead to wheel skid, & excess hoist-cable swing.