KB Electronics DBM Dynamic Braking Module for Single Phase Input Models User Manual

Page 4

“The Right Control for Your Application.”

12095 NW 39 Street, Coral Springs, FL 33065-2516

Telephone: 954-346-4900; Fax: 954-346-3377

KB Electronics, Inc.

www.KBelectronics.com

Dynamic Brake Module (Part No. 9598) Installation Instructions

(A40148) – Rev. B – 7/18/2006 – Z4181B00

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5.1

DECEL EXTEND ENABLE/DISABLE SELECTION (J2): Jumper J2 is located on the KBBL Series Drive’s lower PC board. Jumper
J2 is factory set to the “X1” position to enable the Decel Extend Feature, which prevents the drive from tripping on Overvoltage
Faults when stopping the drive for high inertial loads. To disable the Decel Extend Feature (4Q Braking Mode), set Jumper J2 to the
“X2” position. See Figure 7.

Figure 7

Decel Extend Enable/Disable Selection

Decel Extend Enabled

(Factory Setting)

(J2 Installed in “X1” Position)

Decel Extend Disabled

(4Q Braking Mode)

(J2 Installed in “X2” Position)

5.2

4Q BRAKING MODE: For 4Q Braking Mode, the drive must be calibrated to the motor, as described below. The % Brake Trimpot
is not operational in the 4Q Braking Mode. Do not operate the drive until completing this calibration procedure. Jumper J2
(X1, X2), on the drive’s lower PC board, must be set to the “X2” position to disable the Decel Extend feature, as described in Section
5.1, above.

4Q Braking Mode Calibration Procedure
1.

Remove any load connected to the motor shaft.

With power disconnected, set Jumper J3 (CAL) to the “ON” position. Set Jumper J7 (MODE) to the “4Q” position. See Figure 8.

Apply power and close Terminals “FWD” and “COM”. The drive will run the motor up to the maximum speed in approximately
20 seconds. If the drive will also be operated in the reverse direction, this calibration must also be performed in the reverse
direction (by closing Terminals “REV” and “COM”).

The CAL status LED (located on the Hall Isolator Board) will flash according to the description below. If the calibration fails,
check the Hall Sensor connections.

CAL Status LED Flash Sequence: Flashes quick yellow while calibrating. Flashes quick green when the calibration has been
successfully completed. Flashes quick red if calibration fails.

Set Jumper J3 to the “OFF” position. The drive is now ready for application testing. See Figure 9.

Figure 8

Calibration Setup in the 4Q Braking Mode

(J3 Installed in “ON” Position)
(J6 Installed in “ON” Position)

(J7 Installed in “4Q” Position)

Figure 9

Dynamic Braking During Deceleration

(4Q Braking Mode)

(J3 Installed in “OFF” Position)

(J6 Installed in “ON” Position)

(J7 Installed in “4Q” Position)