Instruction Manual

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E6581364②

TOSVERT VF-AS1/PS1

Commercial Power Supply Backup and

Commercial Power Supply/Inverter Switching

Instruction Manual

Technical information described in this document is used to explain typical operations and

applications of products, and this is not intended to grant warranty or licensing right on its

use regarding TOSHIBA group or a third party intellectual property and other right.

Summary of content (10 pages)

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E6581364② TOSVERT VF-AS1/PS1 Commercial Power Supply Backup and Commercial Power Supply/Inverter Switching Instruction Manual Technical information described in this document is used to explain typical operations and applications of products, and this is not intended to grant warranty or licensing right on its use regarding TOSHIBA group or a third party intellectual property and other right.
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E6581364 - Contents 1. Commercial Power Supply Backup..................................................................................... 2 1.1. Standard connection diagram...................................................................................................... 2 1.1.1. Switching circuit connection diagram, Time chart, Parameter settings .................................... 3 1.2. Standard connection diagram (Star-delta switching start) ........................................................
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E6581364 1. Commercial Power Supply Backup When the inverter’s protective function is activated, switching power to commercial power supply makes the motor run immediately. 1.1.
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E6581364 1.1.1.
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E6581364 1.2. Standard connection diagram (Star-delta switching start) This is the circuit to switch the motor to commercial power supply Star Delta (star-delta) connection startup when the inverter’s protective function is activated.
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E6581364 1.2.1.
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E6581364 Title Adjustment range Setting value 0 to 3 1 (Automatic switching when tripped) *3 Inverter side switching waiting time 0.1 to 10.0 seconds Different for each model Commercial power side switching waiting *3 time 0.37 to 10.0 seconds 0.
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E6581364 2. Commercial Power Supply/Inverter Switching The motor runs on commercial power supply under rated operating conditions and when the motor runs in energy saving mode with its input power frequency lowered, this circuit switches the motor to the inverter power without stopping the motor. 2.1.
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E6581364 2.1.1.
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E6581364 2.2. Precautions 1. Make sure to interlock the magnetic contactor (MC3) on the inverter output side with the commercial power supply magnetic contactor (MC1). 2. Magnetic contactor (MC2) can be omitted for normal operation but this is needed to isolate the inverter circuit in case a short-circuit fault occurs inside the inverter. Examine whether it should be installed or not considering the importance of the system concerned. 3.