Yaskawa Matrix Converter User Manual Page 86

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Test Run Procedures
4-3
Test Run Procedures
This section describes the procedure for performing a test run after the MxC is fully connected.
Switching the Power On
Confirm all of the following items first, and then turn on the power supply.
Make sure the power supply voltage is correct.
200 V class: 3-phase 200 to 220 VDC, 50/60 Hz
400 V class: 3-phase 380 to 480 VDC, 50/60 Hz
If connecting an MxC to a power supply with high impedance, such as a Slidax, the power-supply voltage
may rise during regeneration. Contact your Yaskawa representative for details.
Use a power supply with a capacity that is the same or greater than the MxC capacity.
Make sure that the motor output terminals (U, V, W) and the motor are properly connected.
Make sure that the MxC control circuit terminal and the control device are wired correctly.
Set all MxC control circuit terminals to off.
When using a PG Speed Control Card, make sure that it is wired correctly.
Make sure that the motor is not connected to the mechanical system (no-load status)
Checking the Display Status
Assuming there are no problems, the digital operator will display the following message when the power is
switched on:
When a fault has occurred, information concerning the fault will be displayed instead of the message shown
above. The user should refer to Chapter 7 Troubleshooting for information on how to remedy a fault situation.
Below is and example of the digital operator display when a fault occurs.
Display during normal
operation when the unit is
first powered up.
The output frequency reference appears
on the digital operator screen.
Operator display when a fault
has occurred.
The display will differ depending on the
type of fault.
A example on the left shows a low voltage
alarm.
-DRIVE-
Frequency Ref
U1-01= 0 0 0.0 0Hz
-DRIVE-
Rdy
Frequency Ref
U1- 01= 60.0 0Hz
U1-03=10.05A
U1-02=60.00Hz
01
01
Frequency Ref
-DRIVE-
UV
PS Undervolt
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