External connections
Manual b maXX
®
BM1000
Document No. 5.07003.04 Baumüller Nürnberg GmbH
60
of 174
6.10
6.10.5 Terminals [+/B1, B2] for connecting chopper unit / braking resistor
Connect a braking resistor and/or chopper unit in applications with frequent decelera-
tion ramps, short deceleration time, too low braking torque or requiring increased brak-
ing torque.
Connect the terminals [+, -] of the brake unit to the b maXX
®
1000 terminals
[+/B1, -]. The length of wiring should be less than 5 m with twisted cable.
When not used, please leave the terminals [+/B1, -] open.
Figure 30: Terminals braking resistor
m Frame 1 (BM1211, BM1212, BM1213, BM1412, BM1413, BM1414):
No built-in chopper unit:
Optional use of chopper unit and braking resistor necessary (refer to ZB.1.1 Select a
chopper unit /braking resistor– from page 120).
Please connect an external chopper unit and braking resistor to the terminal [+, -], see
ZConnecting main terminals– from page 57.
m Frame 2 and 3 (BM1224, BM1225, BM1425, BM1426, BM1437, BM1438, BM1439):
Built-in chopper unit:
Optional connection of a suitable braking resistor possible.
If the motor generates additional regeneration energy a further chopper unit with brak-
ing resistor can be connected (see ZB.1.1 Select a chopper unit /braking resistor–
from page 120).
Please connect the external chopper unit to the terminals [+/B1, B2], see ZConnecting
main terminals– from page 57.
CAUTION
The following may occur, if you do not observe this caution information:
m Short-circuiting [B2] or [-] to [+/B1] can damage the b maXX
®
1000.