IAI America PSEL - Manual (Page 64)

54
Part 1 Installation
1.1 Power ON Sequence
 Although separate inputs are provided for the control power and motor power, they should be supplied
from the same power-supply terminal.
 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
 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.
 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
Once the control power
drops to approx. 19 V or
below, the power cutoff
processing is started.
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.