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2.5 Wiring of the power supply
6E8C1111
17
2.5 Wiring of the power supply
Wire the external power supply to model 2000 power supply module in the following
manner.
When using expansion units, arrange for power to be supplied simultaneously to the
basic unit and the expansion units (or to the expansion units before the basic unit).
(1) Power conditions
Rated voltage : 85 to 264VAC, 50/60Hz (PS694)
Power consumption : 150VA or less (PS694)
Retentive power interruption : 20ms or less
(2) Install an electrostatic shielded transformer or a noise filter if the power contains
noise. See figurer at the bottom.
(3) Use twisted-pair cables (1.25mm
2
) as the power supply cable. Keep the cable as
far as possible from I/O cables.
(4) If the expansion unit with a power supply module is used, the power of the basic
and expansion units should be supplied from the same source. Apply power at the
same time or in the order of the expansion unit then the basic unit.
(5) If a CVCF or UPS supplies power to model 2000, observe waveforms of the power
supply; the peak voltage must be more than 130V for the 100VAC range or 260V
for the 200VAC range.
Expansion unit
Basic unit
Noise filter
Power
100/240VAC
(
(
Shielded
transformer