Commissioning and operation
Kendrion INTORQ | BA 14.0217 | 07/2021
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8.2
Function checks before initial commissioning
DANGER
Danger: rotating parts!
¾
The brake must be free of residual torque.
¾
The drive must not be running when checking the brake.
DANGER
There is a risk of injury by electrical shock!
The live connections must not be touched.
8.2.1
Function check of the brake
If a fault or malfunction arises during the function check, you can find important information for trou-
bleshooting in the chapter Troubleshooting and fault elimination, Page 79. If the fault cannot be fixed or
eliminated, please contact the customer service department.
8.2.2
Release / voltage control
1. Switch off the supply to the motor and brake securely.
2. When switching on the brake supply, make sure that the motor DOES NOT start up (e.g. remove the
two bridges on the motor terminals).
–
Do not
disconnect the supply connections to the brake.
– If the rectifier for the brake supply is connected to the neutral point of the motor,
also
connect the
neutral conductor to this connection.
DANGER
Danger: rotating parts!
Your system should be mechanically immobilized in the event that it could start moving
when the brake is released.
3. Switch the power on.
4. Measure the DC voltage at the brake.
– Compare the measured voltage to the voltage specified on the name plate. A deviation of up to
10% is permitted.
– When using bridge/half-wave rectifiers: After switching to one-way voltage, the measured DC volt-
age may drop to 45% of the voltage specified on the name plate.
5. Check the air gap s
L
. The air gap must be zero and the rotor must rotate freely.
6. Switch off the supply to the motor and brake securely.
7. Connect the bridges to the motor terminals. Remove any extra neutral conductor.
