Images are representations only.
WQ2A/WQ2V Free Range Type Pulse to Analog Converter
Brand: Yokogawa Electric Corporation
The WQ2A/WQ2V is a compact, front terminal connection type pulse-to-Analog converter that receives pulse-train signals and converts them into DC voltage or DC current signals proportional to the frequency.
Features- With built-in 12 V or 24 V power supply for pulse transmitter inputs
- Input pulse types include current pulse, voltage pulse, non-voltage contact, and open collector contact
- I/O range, input pulse width, and low cut point setting, zero/span adjustment and I/O monitoring can be made on-site, using the optional parameter setting tool (VJ77) or handy terminal (JHT200)
- Internal filter can be set to eliminate chattering (In cases where the input frequency range is up to 100 Hz, the pulse width is 3 Milliseconds or more)
- Dual output and 2,000 Vac withstand voltage specifications are available
Specifications
Accuracy
- ± 0.1 % of Span
- Relative Error within ± 0.2 % between Output 1 & 2 - Dual Output
Consumption
- 6 VA at 100 Vac - Power Consumption (WQ2V)
- 60 mA at 24 Vdc - Current Consumption (WQ2V)
- 8 VA at 100 Vac - Power Consumption (WQ2A)
- 90 mA at 24 Vdc - Current Consumption (WQ2A)
Electrical Connectors
- M4 Screw Terminal
Enclosure, Body Material
- ABS Resin
Frequency
- 0 to 10,000 Hz - Input Frequency
Humidity
- 5 to 90 % RH, Non-Condensing - Operating Humidity Range
Input Signal
- -1 to 8 Vdc - Low Level
- 12 Vdc ± 10 % - Transmitter Power Supply
- 2-24 V - High Level
- 24 Vdc ± 10 % - Transmitter Power Supply
- Swing Width: ≥ 2 V
Insulation Resistance
- 100 MΩ or more at 500 Vdc
Load Resistance
- 10 kΩ or more - Allowable Load Resistance
- 250 kΩ or more - Allowable Load Resistance
Mounting
- DIN Rail Mounting
- M4 Screw x 4
- Rack-Mounted
- Wall Mounted
Operating Temperature
- 0° to 50° C (32° to 122° F)
Output
- 0-20 mA
- 10 mV - 20 V - Span (DC)
- -10 to 10 Vdc
Power Supply
- 12 Vdc / 30 mA - Transmitter Power Supply
- 24 Vdc / 30 mA - Transmitter Power Supply
- 24 Vdc ± 10 % (DC Drive)
- 85-264 Vac, 47 to 63 Hz
Power Supply Effect
- ± 0.1 % of Span or Less - Power Supply Voltage Fluctuations
Pulse Range
- Pulse Width with a Duty of 50 ± 30 % when the Input is 100 % - Input Pulse Width
Resistance
- 1 Kiloohm - Input Resistance (Current Pulse)
- 10 kΩ or more - Input Resistance (Contact Pulse & Voltage Pulse)
- 200 ohms - Input Resistance (Current Pulse)
- 500 ohms - Input Resistance (Current Pulse)
Response Time
- 2 Intervals of Input + 50 ms, 63 % Response (10 to 90 %)
Span & Zero Adjustments
- ± 10 % - Output Adjustment
- 90 to 110 % - Span Adjustment
Supply Voltage
- 1,500 Vac/minute - Withstand Voltage for AC & DC Drive
- 500 Vac/minute - Withstand Voltage for DC Drive
Temperature Effect
- ± 0.2 % of Span or Less for a Temperature Change of 10° C (18° F)
Zero Offset
- -100 to 200 % - Zero Elevation
