APS-004 Output Frequency Capacity (45~999.9Hz)

Key Features

Wide output frequency range 45 to 999.9Hz
High precision and stability
Low total harmonic distortion (THD)
Programmable digital control interface
Built-in overload and short-circuit protection
Remote control via RS232/RS485
Compact and industrial-grade design
Ideal for testing, R&D, and production environments

The APS-004 Output Frequency Capacity (45~999.9Hz) is an advanced, high-performance frequency output module designed to deliver precision-controlled AC signals across a wide range of applications. Capable of generating output frequencies from 45 Hz to 999.9 Hz with fine resolution and stability, it is ideal for simulating global power conditions, testing frequency-sensitive equipment, and driving variable-speed motors. The unit features a digital control interface with programmable settings for frequency, voltage, and output waveform characteristics, ensuring exceptional accuracy and repeatability. Built with high-efficiency power conversion technology, it offers low total harmonic distortion (THD) and superior load regulation, even under dynamic conditions. Safety and reliability are enhanced through integrated overload protection, thermal shutdown, and short-circuit prevention. The APS-004 supports both manual operation and remote control via standard communication protocols (such as RS232/RS485), making it suitable for both standalone use and automated test environments. Compact and durable, it is housed in an industrial-grade enclosure with efficient heat dissipation, making it ideal for use in R&D labs, production lines, motor and inverter testing, avionics, and power electronics development.

APS-7000 Specifications

The specifications apply when the APS-7000 is powered on for at least 30 minutes under +20°C~+30°

Model		APS-7050	APS-7100	APS-7200	APS-7300
Power Rating		500VA	1000VA	2000VA	3000VA
Output Voltage		0 ~ 155Vrms, 0 ~ 310Vrms
Output Frequency		45.00 ~ 500.0 Hz
Max. Current(rms) *1	0 ~ 155 Vrms	4.2A	8.4A	16.8A	25.2A
	0 ~ 310 Vrms	2.1A	4.2A	8.4A	12.6A
Max. Current (peak)	0 ~ 155 Vrms	16.8A	33.6A	67.2A	100.8A
	0 ~ 310 Vrms	8.4A	16.8A	33.6A	50.4A
OPT. APS-003(rms) *6	0 ~ 600 Vrms	1.05A	2.1A	4.2A	6.3A
OPT. APS-003(peak)	0 ~ 600 Vrms	4.2A	8.4A	16.8A	25.2A
Total Harmonic Distortion (THD) *2		≤ 0.5% at 45 ~ 500.0Hz (Resistive Load)
Crest factor		≤ 4
Line regulation		0.1% (% of full scale)
Load regulation		0.3% (% of full scale)
Response time		< 100µs
Reverse current		30% of Maximum Output RMS Current (Continue) 100% of Maximum Output RMS Current (Within 3 minutes)
Setting
Voltage	Range	0 ~ 155Vrms, 0 ~ 310Vrms, Auto
	Resolution	0.01V at 0.00 ~ 99.99Vrms 0.1V at 100.0 ~ 310.0Vrms
	Accuracy	± (0.5% of setting + 2 counts)

Frequency	Range	45 ~ 500 Hz
	Resolution	0.01Hz at 45.00 ~ 99.99Hz 0.1Hz at 100.0 ~ 500.0Hz
	Accuracy	± 0.02% of Setting
OPT. APS-004	Range	45 ~ 999.9Hz
	Resolution	0.01Hz at 45.00 ~ 99.99Hz 0.1Hz at 100.0 ~ 999.9Hz
	Accuracy	± 0.02% of Setting
Power on/off phase angle	Range	0 ~ 359°
	Resolution	1°
	Accuracy	± 1° (Only 45 ~ 65Hz)
*Measurement 3**
Voltage (rms)	Range	0.20 ~ 38.75Vrms 38.76 ~ 77.50Vrms 77.51 ~ 155.0Vrms 155.1 ~ 310.0Vrms
	Resolution	0.01V at 0.00 ~ 99.99Vrms 0.1V at 100.0 ~ 310.0Vrms
	Accuracy *4	± (0.5% of reading + 2 counts)
Frequency	Range	45 ~ 500Hz
	Resolution	0.01Hz at 45.00 ~ 99.99Hz 0.1Hz at 100.0 ~ 500.0Hz
	Accuracy *5	± 0.1Hz
Current (rms)	Range	2.00 ~ 70.00mA 60.0 ~ 350.0mA 0.300 ~ 3.500A 3.00 ~ 17.50A	0.200 ~ 3.500A 3.00 ~ 35.00A
	Resolution	0.01mA 0.1mA 0.001A 0.01A	0.001A 0.01A
	Accuracy	± (0.6% of reading + 5 counts) , 2.00 ~ 350.0mA ± (0.5% of reading + 5 counts) , 0.300 ~ 3.500A ± (0.5% of reading + 3 counts) , 3.000 ~ 17.50A	± (0.5% of reading + 5 counts) , 0.200 ~ 3.500A ± (0.5% of reading + 3 counts) , 3.00 ~ 35.00A
Current (peak)	Range	0.0 ~ 70.0A	0.0 ~ 140.0A
	Resolution	0.1A	0.1A
	Accuracy	± (1% of reading + 1 count)	± (1% of reading + 1 count)

Power (W)	Resolution	0.01W 0.1W 1W	0.1W 1W
	Accuracy	± (0.6% of reading + 5 counts) , 0.20 ~ 99.99W ± (0.6% of reading + 5 counts) , 100.0 ~ 999.9W ± (0.6% of reading + 2 counts) , 1000 ~ 9999W	± (0.6% of reading + 5counts) , 0.2 ~ 999.9W ± (0.6% of reading + 2counts) , 1000 ~ 9999W
Apparent Power (VA)	Resolution	0.01VA 0.1VA 1VA	0.1VA 1VA
	Accuracy	± (1% of reading + 7 counts) , 0.20 ~ 99.99VA ± (1% of reading + 7 counts) , 100.0 ~ 999.9VA ± (1% of reading + 5 counts) , 1000 ~ 9999VA	± (1% of reading + 7 counts) , 0.2 ~ 999.9VA ± (1% of reading + 5 counts) , 1000 ~ 9999VA
Power Factor	Range	0.000~ 1.000
	Resolution	0.001
	Accuracy	±2% reading + 2 counts
General
Remote output signal		Pass, Fail, Test-in Process, Trigger in, Trigger out, OUT ON/OFF
Sync output signal		Output Signal 10 V, BNC Type
Number of Preset		10 (0~9 numeric keys)
Protection		OCP, OPP, OTP and Alarm
Trigger Out		Maximum low level output = 0.8V Minimum high level output = 2V Maximum source current = 8mA.
Trigger In		Maximum low level input voltage = 0.8V Minimum high level input voltage = 2.0V Maximum sink current = 8mA.
SEQUENCE / SIMULATION FUNCTION
Number of Memories		10 (0~9 numeric keys)
Number of Steps		255 max. (for 1 sequence)
Step Time Setting Range *9		0.01 ~ 999.99 s
Operation within Step		Constant, Keep, Linear Sweep
Parameters		Output Range, Frequency, Waveform (sine wave only), On Phase, Off Phase, Term Jump Count (0 ~255), Jump-to, Branch 1, Branch 2, Trigger Output
Sequence Control		Start, Stop, Hold, Continue, Branch 1, Branch 2
AC Input

Phase		Single Phase
Input Voltage		115/230Vac ± 15%		230Vac ± 15%
Input Frequency		50/60Hz
Max. Current		16A/8A	32A/16A	32A	50A
Power Factor		0.7 Typ.
Environmental Conditions
Operating temperature range		0 ~ +40 °C
Storage temperature range		-10 ~ +70 °C
Operating humidity range		20 ~ 80% RH (no condensation)
Storage humidity range		80% RH or less (no condensation)
Interface
Standard		USB Host, LAN		USB Host, USB CDC, LAN
Optional		GPIB (APS-001) RS232 / USB CDC (APS-002)		GPIB (APS-001) RS232 (APS-007)
Dimensions & Weight
Dimensions (mm)	W	430	430	430	430
	H	88	88	312	400
	D	400	560	650	650
Weight		24kg	38kg	90kg	128kg

Product specifications are subject to change without notice.

The Specifications are not suit for ARB mode.

*1 Maximum output current at working voltage 120Vrms, 240Vrms

*2 45 to 500Hz, 10% or higher of the rated output voltage, the maximum current or lower

*3 All of measurement accuracy is at 23±5℃

*4 In the case of 15 to 155V, 30 to 310V, sine wave, no load

*5 For an output voltage of 75 V to 155 V / 150 V to 310 V, sine wave, no load

*6 Maximum output current at working voltage 480Vrms

*9 Step Time does not guarantee specification.

Test & Measurement, AC Power Supply, AC Power Source

APS-9000 Series

Condition	New

Test & Measurement, AC Power Supply, AC Power Source

APS-7000E Series

Condition	New

AC Power Supply, AC Power Source

Regenerative AC Power Supply | Cabinet Type | Grid Simulator （Source & Load）AGL-50-4508

Accessories

CD ROM(User Manual, Programming Manual for APS-7000) x 1,

Power Cord(Region Dependent), GTL-123 Test Lead

Optional Accessories

APS-001 GPIB interface card
APS-002 RS-232 / USB interface (APS-7050, APS-7100)
APS-007 RS-232 interface card(APS-7200, APS-7300)
APS-003 Output Voltage Capacity (0~600Vrms)
APS-004 Output Frequency Capacity (45~999.9Hz)

GRA-423 APS-7050, APS-7100 rack mount kit
GRA-429 APS-7200 rack mount kit
GRA-430 APS-7300 rack mount kit

APS-004 Output Frequency Capacity (45~999.9Hz)