• DOK-DIAX02-DDS02.1*ANA-ANW1-EN-E1,44 • 12.96
57
The servo axis can be operated independently of an NC control using a
battery power source (see Section 4.2).
This may be useful in the following cases:
– the control system is not yet installed,
– the control system has failed,
– optimization work is being carried out on the axis to match up the
machine mechanics and the servo drive.
Risk of injury to persons and damage to machines through
uncontrolled drive motions.
Operating an AC servo drive in anything other than a second-
ary control loop is beyond its prescribed use. If this is still
required, special safety precautions must be taken.
These are:
1. Persons must never stand within the range of servo axis
motions.
2. Set the maximum operating velocity such that the operator
can always safely bring the servo axis to a halt by cancelling
the "RF" signal (controller enable).
3. Set an adequate safety distance between the E-STOP limit
switch and the mechanical machine stop.
Procedure:
– Connect up the batter power source terminals according to Section 4.2,
Fig. 30.
– Apply the controller enable signal.
– De-activate the "drive halt" function (see Section 7.12).
– Apply a small command signal.
A positive voltage signal at the differential input E1 against E2 will
cause the motor to rotate clockwise (looking at the motor shaft).
A negative voltage signal at the differential input E1 against E2 will
cause the motor to rotate counter clockwise.
– The drive velocity must follow the command signal. This can be
checked in the "DRIVE STATUS" menu under the items Velocity
Command Value and the Velocity Feedback Value. If this is not the
case, check for faults according to Section 9.
DO NOT attempt to change the direction of rotation of the servo
motor by switching two cores in the motor power cable, as this
may destroy the motor.
– Cancel the torque limitation and velocity limitation if these have been
activated during commissioning.
The commissioning procedure up to initial start-up is now completed.
6. Commissioning procedure up to initial start-up of the AC servo drive
6.6. Initial start-up of the
drive with a battery power
source
