power automation PA 8000 EL, Installation Instructions Manual, Page: 81 / 108

Personnel: n Skilled electrician
1. Set up inputs according to the schematic.
2. Set up outputs according to the schematic.
3. Set up power supply for outputs.
Ensure that the circuit is protected by a fuse of appropriate
ratings.
Inductive loads
Digital outputs switch very quickly. This fact must be
accounted for when inductive loads, like for example
relays, are connected.
n When connecting inductive loads to outputs, ensure that a
recovery diode is connected in parallel as shown in the sche-
matic (pos. 9).
5.4 Wiring for machine safety
DANGER!
Uncontrolled operation due to improper installa-
tion and configuration!
The control unit's safety relay must be properly inte-
grated into the CNC machine emergency stop chain.
Improper wiring and configuration of the safety relay
may result in uncontrolled operation of the CNC
machine and in consequence may lead to irreversible
personal injuries or death.
n Only operate the CNC machine if the safety relay has been
properly integrated into the machine emergency stop chain.
n Only let qualified personnel (
Ä
Chapter 2.2.1 “Qualifications”
on page 12 ) set up the emergency stop chain.
n For information on safety devices integrated into the machine
see the manual supplied by the machine's manufacturer.
n If in doubt regarding the configuration, contact the manufac-
turers of the control unit and the CNC machine.
For information on the safety connector's specifications
and purpose see Ä Chapter 3.6 “Safety connector”
on page 55 and
Ä
Chapter 2.8 “Machine safety”
on page 17.
Safety
PA 8000 EL CNC control unit
Installation
24.09.2015 | 81