IAI America SSEL - Manual (Page 82)

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Part 1 Installation
1.1 Power ON Sequence
x Although separate inputs are provided for the control power and motor power, they should be supplied from
the same power-supply terminal.
x Turn on the PIO power first. You can turn on the PIO power much earlier than the control power and motor
power, as long as it is turned on before the control power/motor power.
* If the PIO power is not turned on before the control power is turned on, an error will be detected.
1.2 Power Cutoff Sequence
x If the PIO power is turned off before the control power and motor power (before the power cutoff processing
is performed), a PIO power error may be logged internally by the controller.
x The PIO power can be turned off much later than the control power and motor power, as long as it is turned
off after the control power/motor power.
Taken from the
same power supply.
Control power
Motor power
Controller status
Must be turned
on first, as a
rule.
PIO power
The PIO power must be turned
on before the control power, in
order to perform checks during
initialization and self-diagnosis
and apply a hardware latch
upon detection of an error.
Must be turned on
simultaneously, as a rule.
Initialization/self-diagnosis Normal operating condition
Control power
Motor power
Controller status
PIO power
After the power is cut off,
the power cutoff processing
will start within approx. 0.5
to 1.5 AC cycles.
Must be turned off
simultaneously, as a rule.
Power cutoff processing
If the PIO power is
turned off during
this period, an error
may be logged
internally by the
controller.
0.5 to 1.5 AC
cycles
Brake power
Brake power must be
supplied before the
controller enters the
normal operation
mode.