Toshiba SX 2000 - Manual (Page 160)

4.9 Power up/down sequence
4.9 Power up/down sequence
Turn on power or turn off power of the S2T according to the following sequence so
that the S2T is used safely and securely.
(Power up sequence)
(1) Turn on power of the S2T at first. When using expansion units, arrange for
power to be supplied simultaneously to the basic unit and the expansion units.
Use the same power lines for them.
If it is difficult, turn on power of the expansion units before turing on that of the
basic unit.
(2) Turn on power for I/O modules and loads simultaneously.
Use the same power lines for them.
If it is difficult, turn on the external power for I/O modules before turing on the
power for the loads.
(Power down sequence)
(1) Turn off the external power for I/O modules and loads simultaneously.
Or turn off power for loads and turn off power for I/O modules in turn.
(2) Turn off power of the S2T.
When using expansion units, turn off power of the basic unit and the expansion
units simulataneously.
Or turn off power of the expansion units after turning off power of the basic unit.
B
1. Configure the external circuit so that the external power required for output modules and
power to the loads are switched off simultaneously.
Also, turn off to the loads before turning off power to the S2T.
6F8C0926
143