Instruction/ maintenance manual of the product VF-AS1 Toshiba
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E6581364 ② T OSVER T VF-AS1/PS1 Commercial Power Supply Backup and Commercial Power Supply/Inverter Switching Instruction Manual T echnical information described in this document is used to e xplain.
E6581364 1 - Contents - 1. Commercial Power Supply Ba ckup ..................................................................................... 2 1.1. S t andard connection diagram......................................................................
E6581364 2 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. S t andard connection diagram *1: The control power supply backup option (Mod el: CPS002Z) is needed.
E6581364 3 1.1.1. Switching circuit connection diagram, T i me chart, Parameter settings T itle Function Adjustment range Setting value Output signal selection of commercia l power/inverter switching 0 to 3 1 (Automatic switching in case of trip) *3 Inverter side switching w ait ing time 0.
E6581364 4 1.2. S t andard connection diagram (S tar-delt a switching st art) This is the circuit to switch the motor to commercial power supply S tar Delt a (star-delta) connection startup when the inverter ’ s protective function is activated.
E6581364 5 1.2.1. Switching circuit connection diagram, T i me chart, Parameter settings ON Setting frequency S p eed detection time Inverte r trip occurs Frequency after speed is detected P24-OUT1(RY.
E6581364 6 Ti tl e Function Adjustment range Setting value Output signal selection of com mercial power/inverter switching 0 to 3 1 (Automatic switchi ng when tripped) *3 Inverter side switching w ait ing time 0.1 to 10.
E6581364 7 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 .
E6581364 8 2.1.1. Switching circuit connection diagram, T i me chart, Parameter settings T itle Function Adjustment range Setting value Output signal selection of com mercial power/inv.
E6581364 9 2.2. Precautions 1. Make sure to interlock the magne tic cont actor (MC3) on the inverter output side with th e 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 .
An important point after buying a device Toshiba VF-AS1 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Toshiba VF-AS1 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Toshiba VF-AS1 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Toshiba VF-AS1 you will learn all the available features of the product, as well as information on its operation. The information that you get Toshiba VF-AS1 will certainly help you make a decision on the purchase.
If you already are a holder of Toshiba VF-AS1, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Toshiba VF-AS1.
However, one of the most important roles played by the user manual is to help in solving problems with Toshiba VF-AS1. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Toshiba VF-AS1 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
