Yaskawa Varispeed 626M5 - Manual (Page 111)

6.2 Trial Operation Procedure
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6.2 Trial Operation Procedure
This section explains in detail the procedure shown in the flowchart on the preceding page for the trial operation.
6.2.1 Checking the Power Supply Voltage
Turn OFF the MCCB on the Converter power supply, and check the power supply input voltage supplied
to the Converter on the primary side of the MCCB. Use a voltmeter or rotation tester that can measure input
voltage for the measurement. The input voltage tolerance range is shown in the following table.
Table 6.1 Power Supply Voltage Tolerance Range
Converter Nominal Voltage/Frequency Voltage Fluctuation Toleration
Range
200 V Series 200 V/50 to 60 Hz 170 to 242 V
220 V/50 to 60 Hz
230 V/60 Hz 170 to 253 V
400 V Series 380 V 340 to 484 V
400 V/50 to 60 Hz
440 V/50 to 60 Hz
460 V/60 Hz 340 to 506 V
Note: The Inverter can operate within the voltage fluctuation range shown in the table above, but
make the following settings for optimum characteristics. 200-V series: 200 to 240 V, and
400-V series: 400 to 480 V. If the voltage falls below 200 V or 400 V, lower outputs may
not be possible in the high-speed range as specified. Therefore, if the input voltage can be
converted to within these ranges using transformer tap conversion or other method,opti-
mum operation according to the characteristics can be achieved.
6.2.2 Setting the YENET1200 Node Address
Before turning ON the control power supply, set the YENET1200 node address using rotary switch SW1
on the Inverter Unit. The node address must agree with the NC Unit node address parameter settings.
6.2.3 Turning ON the Control Power Supply
When the control power supply is turned ON, “ ” will be displayed on the 7-segment LED display on
the Converter, and “ ” will be displayed on the 7-segment LED display on the Inverter. If the display
differs from this, refer to Chapter 12 Troubleshooting for details.
Turn ON the control power supply before (or at the same time as) turning ON the main control circuit power
supply. Also, turn OFF the main power supply before (or at the same time as) turning OFF the control power
supply. Failure to observe this precaution can result in the Converter and Inverter malfunctioning.
6.2.4 Turning ON the Main Circuit Power Supply
When the main circuit power supply is turned ON, the 7-segment LED display on the Converter will
change to “
”. At the same time, the CHARGE indicators on both the Inverter and Converter will light
red. At this time, if an error is displayed and the above display does not appear, refer to 12.3 Inverter Fault
Table for details.
If the 7-segment LED display continues to display “ ”, the main circuit input voltage is too low or the
phase has been interrupted. Check the input power supply voltage.
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IMPORTANT