• DOK-DIAX02-DDS02.1*ANA-ANW1-EN-E1,44 • 12.96
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3. Fundamental safety notes
3.3. Safety notes
for commissioning
When commissioning a servo drive problems may arise that increase the
risk of accidents and damage to the drive and machine. These are:
– errors in wiring up the motor, drive controller and feedback
– errors in the NC control
– errors putting monitoring equipment out of action
To reduce the accident risk commissioning must always be
carried out by trained and qualified personnel only.
INDRAMAT drives operate as components in machinery and plant. They
cannot, in themselves, ensure the safety of personnel for each machine/
plant in which they are installed.
INDRAMAT drives must always be included in the global safety concept
for each application.
The drives provide certain functions which may be incorporated into the
safety concept. This Application Manual indicates such possibilities.
Risks to human safety may occur through:
– unintentional start-up of servo axes due to faults and errors in the
machine or drive.
– operation of servo axes in unsecured working areas of a machine.
Unintentional start-up can be prevented by:
– disconnecting the power contactor (E-STOP)
– disconnecting the master switch when operation is interrupted for any
length of time. Appropriate measures must be taken to protect the
master switch against accidental reconnection, e.g. by hanging up a
suitable warning notice or removing the key from lockable master
command equipment. For activation of the starting lockout (drive
interlock open) see Section 7.2.
The following connections may carry dangerous voltage levels:
• on the drive controller: motor power connection X5
(see Fig. 15), terminals
– L+, L- DC link circuit voltage
After power has been switched off wait for the link circuit to discharge
(approx. 5 min.) and check that the voltage level is under 50 V before
beginning to work. If in doubt, short-circuit.
– A1, A2, A3 motor voltage;
Even after power has been disconnected, dangerous voltage levels
may appear on the terminals when the motors rotate (runout). Check
that the drives are at a complete standstill.
• on the power supply module
– L1, L2, L3 mains power connection.
3.4. Notes on protection
of personnel
Risks due
to axis motions
Risks through contact
with electrical parts
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