Toshiba SX 2000 - Manual (Page 153)

4.6 Wiring of the power supply
Wire the external power supply to the S2T power supply module in the following
manner.
When using expansion units, arrange for power to be supplied simultaneouly to the
basic unit and the expansion units (or to the expansion units before the basic unit).
(1) Power conditions
Rated voltage
Chapt.4 Installation and Wiring
Power consumption
Retentive power interruption
:85 to 264Vac, 50/60Hz(PS692)
:50VAorless (PS692)
:10ms or less
B
(2) Install an electrostatic shielded transformer or a noise filter if the power contains
noise. See the figure at the bottom.
(3) Use twisted-pair cables (1.25mm^) 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 the S2T, observe waveforms of the power
supply; the peak voltage must be more than 130V for the lOOVac range or
260Vac for the 200Vac range.
Basic unit
136
Sequence Controller S2T