PA-3000-H3 series (Three-phase)

ModelControl system30A50A75A100ARated current150A200A250APhase control,PA-3030-VH3 PA-3050-VH3 PA-3075-VH3 PA-3100-VH3 PA-3150-VH3 PA-3200-VH3 PA-3250-VH3Voltage feedbackPhase control,PA-3030-AH3 PA-3050-AH3 PA-3075-AH3 PA-3100-AH3 PA-3150-AH3 PA-3200-AH3 PA-3250-AH3Current feedbackPhase control,PA-3030-PH3 PA-3050-PH3 PA-3075-PH3 PA-3100-PH3 PA-3150-PH3 PA-3200-PH3 PA-3250-PH3Power feedbackPhase control,PA-3030-H3 PA-3050-H3 PA-3075-H3 PA-3100-H3 PA-3150-H3 PA-3200-H3 PA-3250-H3No feedbackFor a feedback type, 3 pieces of CT (Current transformer) are required for detection of load current and over-current.

300A400A500APA-3300-VH3PA-3400-VH3 PA-3500-VH3PA-3300-AH3PA-3400-AH3 PA-3500-AH3PA-3300-PH3PA-3400-PH3 PA-3500-PH3PA-3300-H3PA-3400-H3PA-3500-H3SpecificationsPhasesRated voltageRated currentRated frequencyAllowable voltage fluctuationAllowable frequency fluctuationControl systemArmsFeedback typeControl input signalRemote setting inputRemote contact inputRemote CT inputSlopeElevationSoft start timeCurrent limitImbalance rate adjustmentOutput rangeOutput accuracyApplied loadMinimum load currentAlarm typesAlarm output pointsAlarm outputElectrical lifeContact protection element3 phases200V AC (Selection with the 200V/220V/240V switch)400V AC (Selection with the 380V/400V/440V switch), to be specified* With the standard specifications, the power supply to the main circuit and control circuit is common.
A special type using separate power supplies for the circuits can also be manufactured as an option.
30A, 50A, 75A, 100A, 150A, 200A, 250A, 300A, 400A, 500A to be specified50/60 Hz (Automatic switching)±10% of the rated voltage±2 Hz of the rated frequencyPhase angle control, zero-cross control6-armVoltage, current, power4 to 20mA DC (input resistance approx. 100 Ω, max. allowable current 25mA DC)1 to 5V DC(input resistance approx. 50 kΩ, max. allowable voltage 10V DC)Trimmer signal (10 kΩ recommended, 2 to 20 kΩ allowable)Non-voltage contact signal or open-collector signal (External contact capacity 1mA, 5V DC or more)0 to 5A AC of the rated current0% to 100% of the output range0% to 100% of the output rangeApprox. 1 to 20 sec.
0% to 100% of the output rangeOutput balance adjustment in the range of approx. 40% is enabled.
0 to 98% of the supply voltageWithout feedback: ±10% of the rated voltageWith voltage feedback: ±3% of the rated voltage(when rated voltage fluctuation is within ±10% and the load resistance fluctuation is within 1 to 10 times)With current feedback: ±3% of the rated current(when rated voltage fluctuation is within ±10% and the load resistance fluctuation is within 1 to 10 times)With power feedback: ±3% of the rated power(when rated voltage fluctuation is within ±10% and the load resistance fluctuation is within 1 to 3 times)The accuracy is under the reference operating condition and in the range of 10% to 90% of the ratings and is not specifiedunder other conditions. The error of the CT is not included.
Resistive load, inductive loadThe inductive load is applicable only in the control of the primary side of a transformer in the phase angle control method. Theflux density recommended for the transformer is 1.2 T or less.
0.5A or more (at 98% output at the rated voltage)Over-current alarm(Alarm output: AL1)Rapid-break fuse meltdown alarm(Alarm output: AL1)Radiation fin over-heat alarm(Alarm output: AL1)Heater disconnection alarm(Alarm output: AL2)Thyristor element abnormality alarm(Alarm output: AL2)Imbalance alarm(Alarm output: AL2)Running abnormality alarmPhase-sequence abnormality alarm(Alarm output: AL3)Open-phase abnormality alarm(Alarm output: AL3)Frequency abnormality alarm(Alarm output: AL3)3 points (AL1, AL2, AL3)Alarm output AL1, AL2 … When the alarm is activated, the output is turned on.
Alarm output AL3 … When the alarm is activated, the output is turned off.
Mechanical relay, Form A contactMax. load 240V AC/1A, 30V DC/1A, min. load 5V DC/10mA or more100,000 cycles or moreNot built inOver-current protection deviceRemote setting typesRemote contact typesCooling systemRapid-break fuse is melted down when the load is short-circuited.
Output 0% (gate OFF) at approx. 120% of the rated currentThe current limit function can set the upper current limit arbitrarily.
On the condition that a CT matching the rated current should be connectedSlope (AI1), Elevation (AI2), Current limit (AI3)Running status (DI1: Run/Stop)Control system (DI2: Phase angle control/zero-cross control)Setting method (DI3: Front panel/Remote setting)Rated current 75 A or less: Natural air coolingRated current 100 A or more: Forced air cooling-10C to 55CThe following derating characteristic is applicable at 40C or more.
Allowable loadcurrent (%)

Working temperatureAmbient temperature (°C)

Working humidityInsulation resistance30% to 90%RH, No condensation.
Between power supply terminal and protective conductor (GND) terminals: 500V DC/50MΩ or moreBetween power supply terminal and protective conductor (GND) terminals: 2000V AC/1 min. (200V type)Between power supply terminal and protective conductor (GND) terminals: 2500V AC/1 min. (400V type)With the instrument with the cooling fan(s) (i.e. rated current 100A or more), the fan power cord should be unplugged (the cooling fan has awithstanding voltage of 2000V AC and should be eliminated).

Withstanding voltageRated current 30A, 50A, 75ARated current 100ARated current 150A, 300ARated current 200A, 250A, 400A, 500APower consumptionRated current30A50A75A100AGenerated heatExternal DimensionsWeightCase assembly materialColorInstallation instructionReference operation conditionNormal operation conditionStorage condition200V supply type15VA40VA65VA90VA400V supply type20VA55VA90VA125VARated current250A300A400A500AMax. heat generation920W1100W1530W1980WMax. heat generation140W180W260W380W325 (H) x 200 (W) x 200 (D) (Rated current 30A/50A types)325 (H) x 288 (W) x 220 (D) (Rated current 75A/100A types)Excluding projectionsApprox. 8 kg (Rated current 30A/50A types)Approx. 13 kg (Rated current 75A/100A types)Ordinary steel sheetsGrayPanel installationAmbient temperature : 23C ± 2COperating humidity: 55% ± 5%RH (No condensation)Power voltage: Rated voltage ± 1%Power frequency: Rated frequencyInstallation posture: 0° Front, rear, left and right.
Ambient temperature : -10 to 55COperating humidity: 30% to 90%RH (No condensation)Power voltage: Rated voltage ± 10%Power frequency: Rated frequency ± 2 HzInstallation posture: 5Front, rear, left and rightVibration/impact: None.
Altitude: 2000 m or lessAmbient temperature : -20 to 60COperating humidity: 5% to 90%RH (No condensation)Under the shipment packing from factory325 (H) x 420 (W) x 240 (D) (Rated current 150A to 250A types495 (H) x 420 (W) x 240 (D) (Rated current 300A to 500A types)Approx. 22 kg (Rated current 150A to 250A types)Approx. 36 kg (Rated current 300A to 500A types)External dimensions (Scale: mm)Rated current: 75 A/100 A

ø18210ø9123030

ø912Rated current: 30 A/50 AU1 U2V1 V2W1 W2200Main circuit terminals M594.51328 33 28 33 2820028 56 28 56 28288Main circuit terminals M6131515U1 U2 V1 V2 W1 W2325Setting terminalsM3ProtectiveConductorTerminal M4300280ProtectiveConductorTerminal M4300280Settingterminals M3325ø1819110.5220

Rated current: 300 A/400 A/500 A

ø9260

ø93026012Rated current:150 A/200 A/250 A3012

ø18706770*13170240420Main circuit terminalsM10495V2 W1 W2257067132525W2*M1267 3337 671070420Protective conductorterminal M465Main circuitterminalsU1 U2 V1470325270300W1V2V1Setting terminals M3Protective conductorterminal M413U2U1440ø18SettingterminalsM350154240*141 for 250A type only* M16 for 500A type onlyConnection of Setting Terminals·To prevent accidents, be sure to turn this instrument off before proceeding to the following operations.
·The connection should be performed by Shinko or other qualified service personnel.
Control input signal onlyCurrent signal (4-20mA DC)1-5VDC4-20mADCControllerContact input signal(High-limit/low-limit setting units are connected.)Voltage signal (1-5V DC)16161717Controller18HC
L1819192020

321

321Low-limit setting unitVariable resistor (10kΩ)2201High-limit setting unitVariable resistor (10kΩ)* Setting units: low-limit value<high-limit valueManual setting unit and with auto/man switchingCurrent signal (4-20mA DC)4-20mADC

1617Controller18Manualsetting unit2AUTO

3Manual setting unit onlyManual setting unit only19Manual setting unit3

2220

1120

2MAN1

1Variable resistor (10kΩ)Variable resistor (10kΩ)With slope setting unit (Slope using control input signal)Current signal (4-20mA DC)With slope setting unit (Slope using remote setting input)Current signal (4-20mA DC)4-20mADC4-20mADC16161717ControlleSlope setting unit1831922011Controlle1819Voltage output unit *10-2.5V correspondsto 0-100%.

2023
1Variable resistor (10kΩ)(PLC, etc.)* Use the two short-circuit plates, which are provided for the connections between (16) and (17) (or (17) and (18)), and between (19) and (20), as required. Be sure to check theterminal numbers when connecting them.
*1: When voltage output units are used for the remote setting inputs (AI1 to AI3),It is necessary to isolate each output from the voltage output units when plural PA-3000-H3 are connected. In addition, the output from 1 set of the voltage output unitcannot be connected to plural PA-3000-H3 in parallel.With elevation setting unit (Elevation using remote setting input )Manual setting unit, slope setting unit & Auto/Man SWCurrent signal (4-20mA DC)4-20mADCCurrent signal (4-20mA DC)4-20mADC161617

17ControllerControllerSlope setting unit

1819332

24

1119220Elevation18AUTO120MANVariable resistor (10kΩ)Manual setting unit11
2Variable resistor (10kΩ)3

2Variable resistor (10kΩ)Operation of multiple instrumentsCurrent signal (4-20mA DC)Voltage signal (1-5V DC)4-20mADCController1-5VDC161616161616171717171717181818181818191919191919202020202020Controller* Connectable quantity of the PA-3000-H3 series in case of plural-unit operation is limited by the output capacity of a controller.
(1) After completing connections, be sure to reattach the setting terminal cover.
(2) The internal circuitry may be destroyed if an over-current or over-voltage is applied to the control input signal terminal.
Be careful when applying a signal to this terminal.

GlossaryControl Systems• Phase angle controlThe phase angle control system controls the output by varying the conducting angle θ (ON timing) within 210° (3-arm operation) or 150° (6-armoperation) of the power frequency. Most thyristor regulators employ this system.
This control is continuous compared to the zero-cross control and can be used in the primary side control of the transformer.
• Zero-cross control0.75 sec.

0.75 sec.

OutputThe zero-cross control system controls the output by defining ON/OFF for each power waveform cycle.
It generates less noise than the phase angle control. However, as the maximum current flows during the ONperiod and it is intermittent, the flickering phenomena (Example: Lighting flicker) may be generated.
The zero-cross control can use only a Nichrome heater. Do not use it for the purposes other than theprimary side control of the transformer and Nichrome heater, otherwise, the over-current alarm will activate orthe rapid-break fuse will be melted down.
The pulse interval corresponds to the output updating interval. For example, when the pulse interval is 1.5 sec.
(default value) and the output is 50%, the ON/OFF waveform becomes as shown on the right.

Pulse interval• 6-arm and 3-arm typesThe “6-arm” type performs ON/OFF control of both the 1-side (positive) and 2-side (negative) gates of 1-power phase at the thyristor gate control.
The “3-arm” type leaves the 2-side (negative) gate permanently ON. This instrument adopts the “6-arm”.
U V W1 side (Positive)2 side (Negative)6-arm: ON/OFF3-arm: ON/OFF[6-arm control waveform]6-arm: ON/OFF3-arms: Always ONVoltage[3-arm control waveform]VoltageLoadCurrentCurrentNichrome heaterResistanceFeedback Type・Voltage feedback typeThis is a type to control with the feedback of the voltage of the load, and is optimum for a heater with a low resistance-temperaturecharacteristic as shown on the right (Nichrome heater, etc.).
Such a heater can be controlled stably by maintaining the output voltage from the thyristor regulator to a constant level.
This feedback can be used only with the phase angle control type.
Note) The voltage feedback type controls the average value of three-phase load voltage values. This type cannot control each phaseindividually.

Temp.8060604040202020604080Control input (%)

Control output (%)

80Slope setting (%)

10080Control output (%)

100100Silicon carbide (SiC) heaterDeteriorationTemp.

Settings• Slope0Temp.

Resistance• Power feedback typeThis is a type to control with the feedback of the power of the load and is optimum for a heater, the resistance of which varies according tothe generated heat temperature and varies by nearly 4 times the initial resistance value across the ages (silicon carbide heater, etc.).
Such a heater can be controlled stably by detecting both the voltage and current applied to the load and by feeding back the powermultiplying them.
This feedback can be used only with the phase angle control type.
Note)  A CT is needed for using the power feedback type. Connect a CT matching the rated current.
 The power feedback type controls the power consumption of a load (whole power of three phases).
[ 3 x Average of three-phase load voltage values x Average of three-phase load voltage values]This type cannot control each phase individuallyMolybdenum disilicide heaterResistance• Current feedback typeThis is a type to control with the feedback of the current of the load, and is optimum for a heater with a high resistance-temperaturecharacteristic as shown on the right (Molybdenum disilicide heater, etc.).
Such a heater can be controlled stably by setting the maximum output of the thyristor regulator to the maximum rated current of the heaterbecause this makes it possible to output the current in proportion to the control input signal regardless of changes in the resistance value.
This feedback can be used only with the phase angle control type.
Note)  A CT is needed for using the current feedback type. Connect a CT matching the rated current.
The current feedback type controls the average value of three-phase load current values. This type cannot control each phaseindividually10080%60%40%60The slope setting provides the output (actually the internal SV used for processing) with a slope(inclination). It is effective for example in a electric furnace with 3-zone control which 3 sets of the thyristorregulator is operated by one set of controller.

The elevation setting provides the output (actually the internal SV used for processing) with a bias. Forexample, even when the controller output becomes minimum, a constant base power can be applied toan electric furnace, etc.

20%0%40200204060Control input (%)

80100• Soft startThis function varies the output (actually the internal SV used for processing) gradually in order to prevent sudden change in the control output when this instrument is turned onor when the control input changes drastically. For example, a rush current can be suppressed in case of the primary side control of transformer. With this instrument, thereaching time of the SV from 0% to 100% can be set arbitrarily from about 1 to 20 seconds.
In the models without feedback, the change of output (reaching time of the SV 0% to 100%) by the soft start becomes faster slightly since the actual change of output includesthe operation time of the feedback control, etc. added.
• Current limitThis function sets the maximum limit to the control current. For example, when the voltage feedback is used, the current flows according to the resistance of the load and therated current of the power controller may be exceeded if only the voltage control it used. The current limit function is used in such cases. The judgment value is the averagevalue of three-phase load current values. This function cannot control each phase individuallyThe following chart shows an example of current limit.
100Control current (%)

807060Current Limit 70%(Note) A CT is needed for using the current limit.
Connect a CT matching the rated current.

4020020406080100Input (%)• Imbalance adjustmentFor the 3-phase control, although it is desirable that the voltage and current values of the three phases are the same values (balanced status), they areactually not the same values due to the reliability of the power supply and the imbalanced load (imbalanced status). When the imbalanced status isserious, the controllability is deteriorated as well as the overall reliability of the system.
The PA-3000-H3 Series incorporates the imbalance adjustment function adjusting the output value of each phase in certain range in case of theimbalanced status. This function solves the imbalanced status in a simulated manner and enables stable control. The imbalance adjustment isperformed based on either the voltage or current.

・This catalog is as of April 2021, and specifications are subject to change without notice.
・If you have any inquires, please consult us or our agency.

SHINKO TECHNOS CO., LTD.
OVERSEAS DIVISIONHead Office:2-5-1, Senbahigashi, Minoo, Osaka, 562-0035, JapanTel:+81-72-727-6100Fax:+81-72-727-7006URL:https://shinko-technos.co.jp/e/E-mail:overseas@shinko-technos.co.jp202104 E02