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CHAPTER 3 OPERATION AND CHECKOUT
3.1
General Description
This chapter describes the operation of switches and indicators on the operator
panel, the DC power supply unit, display panel and logic PCB as well as cabling
information and installation procedures.
These switches and indicators are
needed not only to operate the drive in a system, but also to display the
information necessary for trouble-shooting in the event of drive failure.
3.2
DC Power Supply Unit
3.2.1
Introduction
The DC power supply unit has a fan for cooling.
It is also cooled by the
airflow from the line blower which cools the entire drive.
When the main line
switch is turned on, DC power is supplied to this line blower.
The main line
switch is automatically turned off when it detects an over-current in the AC
input.
The power supply can be set for different input voltages by changing the
connection on the control panel of the unit.
(Refer to Figure 3.2.1.)
3.2.2
Control panel
The control panel of the DC power supply is shown in Figure 3.2.1.
(1)
MAIN LINE SWITCH (Non-Fuse Breaker)
Supplies AC power to the unit.
If an over current flows in the AC input,
it goes off.
(2)
POWER ALARM (LED)
If one of following failures occurs, this LED lights.
- Over current or over voltage in the DC output
- Fan alarm
- Over temperature of the DC power supply unit
(3)
BLOWER ALARM (LED)
Indicates a failure of the line-blower.
B03P-482S-0002A ••• Ol
3 - 1
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Table of Contents
Troubleshooting
