The HSQT2-93A is a high-speed multi-AC transducer designed for power control applications. It allows for the analog output of various electrical quantities, including current (average of each phase), voltage (average of line voltage for 3-phase 3-wire, average of phase voltage for 3-phase 4-wire), active power, reactive power, and frequency, when connected to a single circuit of an electric power system.
Technical Specifications
General:
- Dimensions: 120 × 120 × 130 mm
- Weight: Approximately 800g
- Mounting: DIN rail installation or screw mounting (M4 or M5 screws, not included)
- RoHS Compliance: RoHS instruction conformity product
- CE Marking: Conforms to CE marking for DC24V auxiliary supply specification products only. AC85~253V and DC80~143V auxiliary supply products do not conform.
Input:
- Current Input: 0~5A (50/60Hz) or 0~1A (50/60Hz)
- Voltage Input:
- 3-phase 3-wire: 0~150V (50/60Hz)
- 3-phase 4-wire: 0~150/√3V (50/60Hz)
- Rated voltage for 3-phase 4-wire is 110V (110/√3V).
- Input Consumption VA:
- Voltage: Below 0.25VA
- Current: Below 0.1VA
Output:
- Output Signals: 5 analog outputs for Current, Voltage, Active power, Reactive power, and Frequency.
- Output Types:
- DC0~5V (Over 600Ω)
- DC0~10V (Over 2kΩ)
- DC1~5V (Over 600Ω)
- DC±5V (Over 600Ω)
- DC±10V (Over 2kΩ)
- DC4~20mA (Below 550Ω)
- Non-insulation: Between outputs.
Auxiliary Supply:
- AC: 85~253V (50/60Hz), 13VA (Rated voltage 100/110V, 200/220V)
- DC: 80~143V, Below 10W (Rated voltage 100/110V)
- DC: 24V ±15%, Below 10W
- Usage: For both AC and DC uses.
Measurement Parameters:
- Current (A): 0~5A or 0~1A (Effective-value arithmetic). Measures average value of each phase current (R, S, T).
- Voltage (V):
- 3-phase 3-wire: 0~150V (Fundamental-wave effective-value arithmetic). Measures average value of each line voltage (RS, ST, TR).
- 3-phase 4-wire: 0~150/√3V (Fundamental-wave effective-value arithmetic). Measures average value of each phase voltage (RN, SN, TN).
- Active Power (W):
- Rating 5A: 0~1000W, 0~833.3W, 0~750W, 0~500W, and bi-directional ranges (-1000~+1000W, -833.3~+833.3W, -750~+750W, -500~+500W).
- Rating 1A: 0~200W, 0~166.7W, 0~150W, 0~100W, and bi-directional ranges (-200~+200W, -166.7~+166.7W, -150~+150W, -100~+100W).
- Operation: Time division multiplication. Measuring range can be altered with front DIP switch.
- Reactive Power (var):
- Rating 5A: LEAD 1000~LAG 1000var, LEAD 833.3~LAG 833.3var, LEAD 750~LAG 750var, LEAD 500~LAG 500var.
- Rating 1A: LEAD 200~LAG 200var, LEAD 166.7~LAG 166.7var, LEAD 150~LAG 150var, LEAD 100~LAG 100var.
- Operation: Time division multiplication. Measuring range can be altered with front DIP switch.
- Frequency (Hz): 45~55Hz, 55~65Hz, 45~65Hz (Zero cross cycle arithmetic). Measures voltage V (RS) or V (RN). Measuring range can be altered with front DIP switch.
- Class Index: 0.5 (for Current, Voltage, Power, Reactive Power, Frequency).
- Linearity: Within ±0.3%.
- Critical Value of Measuring Range:
- Current: 0~120% of measuring range.
- Voltage: 0~156V (3-phase 3-wire), 0~156/√3V (3-phase 4-wire). Measures to +30% at 120V (120/√3V) cases of rating.
- Active power (One-side swing): -20~+120% of measuring range.
- Active power (Both swing), Reactive power: -120~+120% of measuring range.
Performance:
- Response Time:
- Current, Voltage, Active power, Reactive power: Less than input one cycle +10ms (99%) with no moving average.
- Frequency: Less than 1 second (99%).
- Update Time of Measured Value: 5ms
- Ripple of Output: Less than 1% peak-to-peak to output span.
- Power-supply Temporary-blackout Allowed Time: 20ms
- Insulation Resistance: Above 50MΩ at DC500V (Between electric circuit and case, between input/output/auxiliary supply, between analog output non-insulates/minus common).
- Withstand Voltage: AC2210V (50/60Hz) for 5 seconds (Between electric circuit and case, between input/output/auxiliary supply, between analog output non-insulates/minus common).
- Impulse Voltage Withstand Voltage: 5kV 1.2/50 μs (Positive and negative polarity, for each 3 times) between electric circuit (analog output excludes) and case, and between input/auxiliary supply (output is earth connection).
- Vibration: 10~55Hz, 0.15mm amplitude (single-sided), 10 sweep cycles (JIS C 60068-2-6: 1999).
- Shock: Peak acceleration 500m/s² (JIS C 60068-2-27: 1995).
Overload Capacity:
- Input Voltage: 2 times for 10 seconds, 1.2 times continuous.
- Input Current: 40 times for 1 second, 20 times for 4 seconds, 10 times for 16 seconds, 1.2 times continuous.
- Auxiliary Supply (AC100/110V, AC200/220V, DC24V): 1.5 times for 10 seconds, 1.2 times continuous.
- Auxiliary Supply (DC110V): 1.5 times for 10 seconds, 1.3 times continuous.
- Voltage Output: 10 times at 10-second intervals (short circuit for 1 second), 1 time at 5-second intervals (70% continuous rated-output load).
- Current Output: Open continuous, 130% continuous rated-output load.
Noise Capacity:
- Oscillatory Surge Voltage: Within ±10% of errors when a vibration damping waveform (1~1.5MHz, peak voltage: 2.5~3kV) is applied for 30 seconds.
- Square Wave Impulse Noise: Within ±10% of errors when a noise (1μs, 100ns width) is applied for 5 minutes.
- Auxiliary supply, Voltage circuit (Normal/Common): Over 1.5kV
- Current circuit (Common): Over 1.5kV
- Analog output (Induction): Over 1.0kV
- Electromagnetic Wave Noise: Within ±10% of errors when electromagnetic waves (5W, 1m) of 150MHz, 430MHz, 900MHz, and 2GHz (cellular phone, 0.5m) are irradiated.
- Electrostatic Noise: Within ±10% of errors at 8kV electrostatic noise during energization. No damage at 10kV when not energized.
Environmental Conditions:
- Operation Temperature and Humidity Range: -10~+55°C, 20~95% RH (Non-condensing).
- Storage Temperature Range: -25~+70°C.
- Altitude: 2000m or less.
- Corrosive Gas: Avoid places where corrosive gas (SO2, H2S, etc.) is generated. An optional hydrogen-sulfide (H2S) gas countermeasure is available.
- Dust: Avoid dusty places.
- Vibration and Shock: Avoid places with much vibration and shock.
- External Magnetic Field: Avoid places with influence of external magnetic fields (large current bus, saturable reactor).
- Contamination Degree: 2 (Usually, non-conductivity contamination, but temporary conductivity from dew condensation can occur).
- Use Group: I (For indoors, in places where equipment is handled carefully under laboratory or factory conditions).
Usage Features
Installation:
- Mounting: Can be installed on a 35mm width DIN rail or by screw mounting (M4 or M5 screws).
- Spacing:
- Side-by-side: Detach an interval lining of at least 10mm for radiation.
- Vertical: Prepare at least 90mm for radiation and wiring space.
- Terminal to metal panel: Secure at least 10mm distance.
- Rail Installation: Insert the upside nail of the slot into the DIN rail, then push the lower side to fix it with the lower slider.
- Rail Removal: Insert a minus screwdriver into the square socket of the slider, pull up the BOX to the front, and lower the screwdriver in the direction of an arrow. Avoid pulling up the BOX without fully lowering the slider to prevent damage.
Connection:
- Wiring: Connect wiring correctly according to the provided diagrams for 3-phase 3-wire or 3-phase 4-wire circuits.
- DC Power Supply: S1 (+) and S2 (-) terminals.
- Earthing: Secondary side earthing of VT and CT is unnecessary for low-voltage circuits. VT is unnecessary when using direct 110V.
- Output Protection: The product has a built-in protection network against indirect-stroke surge. For additional protection of a receiver, install a 500V arrester between the surge protector, transmission lines, and ground.
- Grounding Resistance: Set the grounding resistance of the earth terminal (E) to 100Ω or less.
- Noise Source: Keep noise sources away from wiring.
- Inrush Current: Be aware of inrush current during power-up and use over-current protection for the power supply.
Front Switch Settings:
- DIP Switches (S1-S12): Used to alter measurement ranges for active power (W), reactive power (var), and frequency (Hz). Also used to set the count of moving average for current, voltage, power, and reactive power.
- W Measurement Range: Selectable from 8 ranges for 5A and 1A ratings, including uni-directional and bi-directional options.
- var Measurement Range: Selectable from 4 ranges for 5A and 1A ratings.
- Hz Measurement Range: Selectable from 45~55Hz, 55~65Hz, or 45~65Hz.
- Moving Average Count: Selectable for "With no average," "2 times," or "3 times."
- Slide Switch (MAX./OFF/BIAS): Used for output adjustment.
- Rotary Switch (OUTPUT NO.): Sets the factor number for output adjustment (Current, Voltage, Active Power, Reactive Power, Frequency).
- Push Switches (UP/DOWN): Used for fine or coarse adjustment of the selected output for BIAS or MAX.
Maintenance Features
Calibration:
- The product is factory-adjusted, so calibration is generally not required.
- If output shifts over long-term use, adjust as follows:
- Connect and adjust the output load to the specified resistance value.
- Apply auxiliary supply, rated voltage, and rated current. Warm up for 30 minutes.
- Set the rotary switch to the desired factor number.
- Set the slide switch to BIAS. Apply minimum input and adjust with the UP/DOWN switch to the minimum output value.
- Set the slide switch to MAX. Apply rated input and adjust with the UP/DOWN switch to the rated-output value.
- Set the slide switch to OFF after adjustment.
General Maintenance:
- Wiring Changes: Do not change input or auxiliary supply wiring while energized.
- Output Checks: When checking output while energized, avoid touching output wiring and human body to input and auxiliary supply terminals. Do not short-circuit voltage output. Current output may result in 15V terminal voltage if open.
- Terminal Cover: An optional terminal cover is available to prevent accidental contact. Ensure it is securely attached after any wiring changes.
- Cleaning: Wipe dirt off the surface with a dry cloth. Avoid strong rubbing of the nameplate to prevent character disappearance. Do not use organic solvents.
- Disposal: Dispose of as industrial waste (Non-inflammable).
Storage:
- Avoid storage in low/high temperature, high humidity, or sunny places.
- The product uses aluminum electrolytic capacitors. Energize the power supply within one year after shipment.
Troubleshooting:
- In case of product failure, contact Daiichi Electronics or a sales agent for repair or specification changes.
- The warranty does not cover failures due to disassembly, remodeling, false operation by the customer, or use outside of designated environmental conditions.
Guarantee:
- The guarantee period is one year after product delivery.
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