• DOK-DIAX02-DDS02.1*ANA-ANW1-EN-E1,44 • 12.96
66
7. Commissioning the functions of the digital AC servo drive
In cases where the controller enable signal cannot be set and it is
necessary to move the servo axis by hand, the holding brake can be
released as described below.
Danger of injury to persons and damage to machinery.
Secure vertical axes against accidental movement!
Procedure: (see Fig. 64)
1. Disconnect the conductors that power the holding brake (X6/4 and X6/
5).
2. Apply an ex24V DC signal to the core marked "7" or coloured
red.
3. Apply a 0 V signal to the core marked "8" or coloured black.
4. The brake will open.
5. Move the axis to the desired position.
6. Disconnect the external DC power supply.
7. Reconnect the cores to X6 as shown in Fig. 64.
When the holding brake opens, this produces an audible sound in the
servo motor. Activate the holding brake briefly several times and listen
for a synchronous knocking sound in the motor!
During commissioning, measure the mass moment of inertia of the axis
acting on the motor (see Section 8.3)
The figure given in the motor specification sheet for the brake’s holding
moment must be greater than the mass moment of inertia of the axis.
Vibrations liable to occur when the machine is in operation require an
oversizing factor of 30% on account of dynamic moment combinations.
Error in the holding brake and its control signals (see Section 9.3)
Holding brake,
manual release
Verifying the brake
has opened
Check that the holding
brake is correctly dimen-
sioned
Error
diagnosis
