Form 1288
Brake Pak
Installation/Setup
Instructions
44810 Vic Wertz Drive,
Clinton Township, MI 48036
888-621-6221
www.ambitechbrakes.com
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Ambi-Tech
Brake Pak – Installation/Setup Instructions
APPLICATION
The BRAKE-PAK Electronic Motor Control is designed for use with switch controlled single
phase AC induction motors. (Use SHORT-STOP for motors with magnetic starters). It will
operate with virtually all single phase motors that do not have brushes.
Since braking action is achieved by the use of direct current, it will not brake a DC or universal
motor.
Electronic braking does not affect the normal performance, operation, or life of a motor.
LIMITATIONS
Motors may run hotter when used in conjunction with an electronic brake. If the thermal or
overload protector trips, wait for the motor to cool, reset the protector, and restrict the number
of start/stop cycles. Or, reduce the TORQUE setting.
INSTALLATION
A. Enclosed Unit
1. Turn power OFF before proceeding with any wiring.
2. Turn the existing machine operating switch to the OFF position.
3. Mount the unit securely in any position.
4. Plug the BRAKE-PAK line cord into a suitable power outlet.
5. Plug the machine line cord into the BRAKE-PAK receptacle.
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B. Chassis Unit
1. Turn power OFF before proceeding with any wiring.
2. Turn the existing machine operating switch to the OFF position.
3. Mount the unit securely in any position.
4. Refer to Figure B.1
5. Connect the black wire from the BRAKE-PAK to the + power wire from line in.
6. Connect the red wire from the BRAKE-PAK to the + power wire from motor line (line out).
7. Connect the white wire from the BRAKE-PAK to the white (common) wires from each of
the power lines.
8. Connect an on-off toggle switch (single pole, single throw switch) to the terminals of
Terminal Block TB2 on the circuit board.
9. Attach ground wires from both lines to ground lug, as shown.
Customer
Supplied
Mechanical
Switch
Ground
ABK Wiring
Line In
Green
Black
White
Green
Red
Black
Line Out
Black
White
White
Figure B.1
*NOTE - Power wire colors may vary: Black refers to positive, white refers to common and green refers to ground.
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UNIT OPERATION
The BRAKE-PAK ON-OFF control switch is located on the right side of the enclosure. Set the
switch to the “ON” (closed) position to start the machine. Set the switch to the “OFF” (open)
position to initiate the automatic brake cycle. Closing the switch while an automatic brake
cycle is in progress will terminate the brake and start the machine. Note: Once the BRAKEPAK is installed, the existing machine operating switch must be placed and remain in the
“ON” position in order for the BRAKE-PAK to control the motor.
ANTI-RESTART FEATURE
If input power to the BRAKE-PAK is interrupted for more than a few seconds while the
BRAKE-PAK is “ON”, it should not re-start when input power is restored. Green LED D7 will
blink to indicate this condition. Turn the BRAKE-PAK switch “OFF” and “ON” again to start
normally.
ADJUSTMENTS
Controls for setting the braking TORQUE and braking TIME (duration of automatic braking
cycle) are clearly marked on the top of the circuit board.
BRAKE-PAK units are shipped with the TIME and TORQUE controls set for minimum (CCW).
To adjust for your application:
1. Advance the TIME control to mid range.
2. Make sure the BRAKE-PAK control switch is in the “OFF” position.
3. Apply power to the BRAKE-PAK.
4. Turn you machine power switch to the “ON” position.
5. Turn the BRAKE-PAK switch “ON” to start the machine. Allow the machine to come to full
speed, and then turn the BRAKE-PAK switch “OFF”.
6. Increase the TORQUE setting in increments of 1/8 turn.
7. Repeat steps 5 and 6 as needed to obtain satisfactory braking.
8. Adjust the TIME control so that the TORQUE is applied for slightly longer than it takes the
machine to reach a full stop. (When cold, a machine will stop slightly faster than when it is
hot).
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