American Magnetics 4Q12125PS-430 High Stability Integrated Power Supply System - Manual (Page 40)

22 Rev. 5
Operation
Energizing Power Supply System Components
If this occurs, turn the Model 430 Programmer off, wait 15 seconds
or more, and power the Model 430 Programmer back on.
When powering the system off, first turn off the power supply controlled by
the Model 430 Programmer followed by the Model 430 Programmer. The
controller will then ensure the load sees no abnormal power transients as
the power supply is turning off.
3.1.2 Energizing Power Supply and Components
Warning
Do not change power supply jumpers, dip-switches, or other factory
settings. If not rack-mounted, always position power supplies for
convenience in disconnecting the power cords.
Caution
The master unit must be turned on between 2 to 5 seconds before the
slave, otherwise the units will fault and the power-up sequence will
have to be repeated.
Place the power supply switches in the ON position in sequence
(see Caution Note). No local (front panel) adjustments or
connections are required since the power supply control mode and
other parameters have been factory-configured for control by the
AMI Model 430 Power Supply Programmer.
When powering the system off, turn OFF the power supplies
(master unit last) before powering off the Model 430 Programmer.
3.1.2.1 Zero Flux Current Transducer Power Supply
Caution
Operating the system without power applied to the current
transformer (CT) can will result in loss of control, and will probably
damage the CT.
The current transducer power supply is operational immediately
upon connection to a power receptacle. The supply must be
connected to the Model 430 rear panel POWER connector. The
current transducer receives this power indirectly via the SIGNAL
connection to the rear panel of the Model 430 Programmer.