12-17-2
Chapter 12
Inverter Functions
12.17.2
Switching to a Commercial Power
Supply (Commercial Switching)
• How to start the motor with the inverter and drive it
with a commercial power supply.
• How to switch between the drive with a commercial
power supply and drive with the inverter.
• This function can be used to drive the
acceleration/deceleration with the inverter and
drive in a constant speed with a commercial power
supply for a system where the load inertia moment
is large.
• If the 035[CS] terminal is turned from on to off with
the status where an operation command is sent,
the inverter starts with the frequency matched with
the motor rotation speed in free-running after the
retry waiting time [bb-26]. (Starting the frequency
matching.)
• The operation at the [CS] terminal is similar to the
case when starting the frequency matching is
selected. Starting at 0 Hz may occur when:
1. The output frequency is equal to or less than
one-half of the base frequency.
2. The induced voltage of the induction motor
decays early
3. The lower limit frequency for the frequency
matching [bb-42] is set and a speed not more
than the set speed is detected.
• For the frequency matching, extend the retry
waiting time [bb-26] when the overcurrent trip
occurs.
• The operation can be also restarted automatically
when the power is turned on. In this case, the reset
restart function is used. For more information, refer
to "12.14 Changing the Start Mode".
Q
A
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Summary of Contents for SJ Series
Page 39: ...5 4 Chapter 5 Included Items Memo ...
Page 55: ...6 16 Chapter 6 Installation Memo ...
Page 91: ...7 36 Chapter 7 Wire Connection and Optional Devices Memo ...
Page 135: ...9 40 Chapter 9 Operating Instructions Memo ...
Page 145: ...10 10 Chapter 10 Test Run Memo ...
Page 159: ...12 2 6 Chapter 12 Inverter Functions Memo ...
Page 169: ...12 3 10 Chapter 12 Inverter Functions Memo ...
Page 195: ...12 5 8 Chapter 12 Inverter Functions Memo ...
Page 217: ...12 8 12 Chapter 12 Inverter Function Memo ...
Page 287: ...12 10 32 Chapter 12 Inverter Functions Memo ...
Page 303: ...12 11 16 Chapter 12 Inverter Functions Memo ...
Page 349: ...12 15 8 Chapter 12 Inverter Function Memo ...
Page 395: ...12 17 34 Chapter 12 Inverter Functions Memo ...
Page 397: ...12 18 2 Chapter 12 Inverter Functions Memo ...
Page 415: ...12 19 18 Chapter 12 Inverter Function Memo ...
Page 581: ...15 10 Chapter 15 Optional Cassettes Memo ...
Page 591: ...16 10 Chapter 16 ProDriveNext EzSQ Memo ...
Page 642: ...18 49 Chapter 18 Tips FAQ Troubleshooting Memo ...
Page 650: ...19 8 Chapter 19 Maintenance and Inspection Memo ...
Page 781: ...Appendix 1 70 Appendix 1 List of Parameters Memo ...