Lenze SF Series dynamic brake with internal resistors User Manual
Sc & tc series dynamic braking option
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DF01C
13360067
(13360067)
SCL & SCM SERIES DRIVES
PROGRAMMING
1. Set Parameter 12 (TB-13E FUNCTION) to DYNAMIC BRAKING (20).
2. Set Parameter 10 (TB-13A FUNCTION) to INVERSE EXT. FAULT (09), or set Parameter 11
(TB-13B FUNCTION) to INVERSE EXT. FAULT (10).
WIRING
The diagram to the right illustrates how the DB module is wired to the SCL and SCM Series drive. In
this diagram, TB-13A is programmed for INVERSE EXTERNAL FAULT, but TB-13B could be used
instead if TB-13A is required for another function.
See important wiring NOTES below.
SCL / SCM
DRIVE
42
46
47
43
DB OPTION MODULE
13A
13E 11
GND
B -
B + R +
R -
B -
B +
2
SC & TC SERIES DYNAMIC BRAKING OPTION
(FOR MODELS RATED 0.25 - 10 HP)
INSTALLATION AND OPERATION INSTRUCTIONS
Manual Number: DF01C
The SC & TC Series Dynamic Braking option can be used with all SCD, SCL, SCM, SCN and TCF models, and SCF models with parameter version 306 or higher. The
parameter version is displayed momentarily when power is applied, and also appears on a label on the heatsink (For example: PV312).
WARNING!
Remove power from the drive and wait three minutes before wiring the DB module. Incorrect wiring of the B+ and B- terminals
will result in equipment damage! The B+ terminal on the DB module must be connected to the B+ terminal on the drive, and
the B- terminal on the DB module must be connected to the B- terminal on the drive.
DO NOT make connections to R+ and R- without consulting AC Tech. Damage to the Dynamic Braking module and/or drive
may result.
NOTE 1: Use 18 AWG wire for control connections. Tighten DB module and drive control terminals to a torque of 2 lb-in (0.2 Nm). Overtorque of terminals can result
in damage.
NOTE 2: Use minimum 14 AWG wire for connections to B+ and B-. Tighten the DB module terminals to a torque of 2 lb-in (0.2 Nm), and tighten the drive terminals
to 4.5 lb-in (0.5 Nm). The B+ and B- wires MUST be twisted together and must be less than 12 inches long.
SCD & SCF SERIES DRIVES
PROGRAMMING
1. Set Parameter 09 (TB-31 OUTPUT) to DYNAMIC BRAKING (04).
2. Set Parameter 10 (TB-13A FUNCTION) to DB FAULT (09), or set Parameter 12 (TB-13C
FUNCTION) to DB FAULT (08).
WIRING
The diagram to the right illustrates how the DB module is wired to the SCD & SCF Series drive. In
this diagram, TB-13A is used as the DB FAULT input, but TB-13C could be used instead if TB-13A
is required for another function.
See important wiring NOTES below.
SCD / SCF
DRIVE
42
46
47
43
DB OPTION MODULE
13A
2 31
GND
B -
B + R +
R -
B -
B +