Wiring
3 -12
3.3 Main Circuit Wiring
This section shows typical examples of main circuit wiring for
S
-II Series servo products, functions
of main circuit terminals, and the power ON sequence.
Observe the following precautions when wiring.
CAUTION
!
D
Do not bundle or run power and signal lines together in the same duct. Keep power and signal lines
separated by at least 30 cm (11.81 in).
D
Use twisted-pair wires or multi-core shielded-pair wires for signal and encoder (PG) feedback
lines.
The maximum length is 3 m (118.11 in) for reference input lines and is 20 m (787.40 in) for PG feedback
lines.
D
Do not touch the power terminals for 5 minutes after turning power OFF because high voltage may
still remain in the Servopack.
Make sure the charge indicator is out first before starting an inspection.
D
Avoid frequently turning power ON and OFF. Do not turn power ON or OFF more than once per
minute.
Since the Servopack has a capacitor in the power supply, a high charging current flows for 0.2 seconds
when power is turned ON. Frequently turning power ON and OFF causes main power devices like capaci-
tors and fuses to deteriorate, resulting in unexpected problems.
3
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