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Connecting Your 1394 SERCOS Interface System
Publication 1394-5.20 — July 2001
Input Power Conditioning
You can directly connect the 1394 to a three-phase, AC power line.
However, if certain power line conditions exist, the input power
component can malfunction. If either of the following is true, you can
use a line reactor or isolation-type transformer to reduce the
possibility of this type of malfunction:
•
The AC line supplying the drive has power factor correction
capacitors.
•
The AC line frequently experiences transient power interruptions
or significant voltage spikes.
Line conditioning is not typically required. If you
IMPORTANT
have experienced power problems in the past on a
power distribution line, you may need to consider
input power conditioning.
The 1394 does not supply line fuses or a circuit
ATTENTION
breaker. They are customer-supplied items.
Branch circuit breakers or disconnect switches
!
cannot provide the level of protection required
by drive components. Refer to Appendix A for
size and type recommendations.
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