This is a large-capacity programmable AC power supply that has been simplified while retaining the basic concept.
Features
Comparison of Synthetic AC Power Supplies
The "QA Series" has been updated to broadly cover the specifications and performance of the equivalent previous product, the "6300/6500 Series."
Eight points that consider ease of use and safety
Front Panel
ⒶFrequency , voltage , current, and power factor (or power) can be measured simultaneously like a power meter.
Ⓑ In addition to the Up/Down buttons for the setting value, a button for changing digits has been added. This makes setting easier than with previous models.
Ⓒ In addition to the conventional function for measuring each phase and line voltage, a new LINE/PHASE switching function has been added so that the phase voltage and line voltage can be set separately. Any voltage can be set directly.
Ⓓ An illuminated output switch is used so that the input status can be seen at a glance.
Ⓔ By connecting a USB memory to the dedicated USB port, you can save and recall program settings to the USB memory. Firmware updates can also be performed using this port.
Voltage soft start function is standard
A soft start time setting is provided when the output is turned on, allowing the voltage to be increased without starting current during motor starting operation.
Reproduce power supply voltages from around the world
This option allows you to output up to 606V line voltage by expanding the phase voltage up to 350V. This makes it possible to simulate a power supply voltage of 480V ±20% (384V to 576V) without using a separate transformer, making it possible to reproduce power supply voltages around the world, including fluctuation tests.
A wide range of interfaces
LAN/USB/RS-232C are standard equipment. GB-IB/RS-232C converter is also available as an option.
External Control Interface
In addition to PC-based communication control, it supports external analog control (optional) of 0 to 10 Vdc. The voltage and frequency can be controlled from a PLC (Programmable Logic Controller) using the standard equipped PLC input and DI/DO.
PLC Input and DI/DO
External Analog Input Control
Rear panel interface section
Analog Control Movement
Voltage remote sense is standard
This compensates for the voltage drop that occurs when a large current flows, allowing for more accurate voltage setting at the sense point. This is effective when the AC power supply body and the load are far apart.
Timed current limit function is standard
Motors and compressors have a large temporary starting current. If this starting current activates the protection circuit of the AC power supply, testing will not be possible. The timed current limit function was developed to avoid this, so you can use it safely to test motors, compressors, etc.
Instantaneous overload response (optional) available
It is possible to supply instantaneous overloads of three times the rated capacity for one second or less (voltage droop drops to 110% if the time limit exceeds one second).When testing motors or compressors with large inrush currents or starting currents, it is possible to start (rotate) them without voltage droop.
Input voltage/input wiring can be changed (factory option)
By specifying the factory shipping option (charged), you can change the input voltage and wiring as follows. It is possible to support the system input voltage of any country.
*The standard without specification is three-phase three-wire 200V.
Resistant to inrush current
It can supply three to four times the inrush current of conventional models, and can withstand repeated crest factors up to four times the specified value.
Reverse current protection (optional) is available, ideal for protecting motors during testing.
A reverse current protection function can be installed as an option. When an input current (reverse current) is detected from the output terminal of the AC power supply, an alarm is displayed to protect the AC power supply itself, and the output is quickly turned off. The unit is protected from reverse currents such as reverse currents that occur when electric motors such as motors and compressors stop, and instantaneous reverse current power generated by the PCS when combined in parallel with a resistive load as a system simulation power supply, allowing you to use it with peace of mind.