Modbus Serial Output Transmitter for AC Phase Angle & Power Factor

Transmits phase angle and power factor of AC waveforms. DIN Rail mounted, digitally programmable.
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Serial ASCII or Modbus Transmitter, AC Phase Angle Input
Key Features
  • Selectable Modbus or Laurel ASCII protocol
  • Plug-in screw-clamp connectors
  • Easy setup with PC-based Instrument Setup Software
  • 5V, 10V or 24V dc sensor excitation output, isolated
  • Dual solid state relays for alarm or control, isolated
  • RS232 or RS485 serial communications, isolated
  • Transmits phase angle between two AC wave shapes of similar period
  • Transmits power factor from 1.000 to 0.000 with sinusoidal signals
  • Frequency from 0.005 Hz to 10 kHz
  • Phase angle resolution of 1°, 0.1° or 0.01°
  • Phase angle accuracy of 0.01% at AC line frequency
Phase Angle Operation
Item Transmitted
Digital Resolution
Transmitted Units
Frequency Range
Accuracy
Maximum Timing Interval
Phase angle difference between two waves of same period
6 digits
1°, 0.1°, 0.01°
0.005 Hz to 10 kHz
0.01°, 0.005 Hz to 100 Hz; 0.1° at 1 kHz, 1° at 10 kHz
200 s
Power Factor Mode
Item Transmitted
Transmitted Units
Polarity
Frequency Range
Accuracy
Power factor between two sine waves of same period
1.000 to 0.000, 1.00 to 0.00, or 1.0 to 1.0
Negative sign indicates negative phase angle
0.005 Hz to 10 kHz
0.1% at power line frequencies
Inputs
Types

Signal ground
Minimum Signal
Maximum Signal
Noise Filter
Contact Debounce
AC, pulses from NPN, PNP transistors, contact closures, magnetic pickups
Common ground for channels A & B
Nine ranges from (-12 to +12 mV) to (+1.25 to +2.1V)
250 Vac
1 MHz, 30 kHz, 250 Hz (selectable)
0, 3, 50 ms (selectable)
Update Rate
Conversion Interval
Gate Time
Time Before Zero Output
Gate time + 30 ms + 0-2 signal periods
Selectable 10 ms to 199.99 s
Selectable 10 ms to 199.99 s
Serial Data Output (standard)
Signal levels
Data Rates
Output Isolation
Serial Protocols
Devices on RS-485 Line
Modbus Addresses
Modbus Modes
Modbus Compliance
RS232 or RS485 (half duplex)
300, 600, 1200, 2400, 4800, 9600, 19200 baud
250V rms working, 2.3 kV rms per 1 min test
Modbus RTU, Modbus ASCII, Laurel ASCII (selectable)
32 max without a repeater.
247 max
RTU or ASCII, 2-wire.
Modbus over Serial Line Specification V1.0 (2002)
Transducer Excitation Output (standard)
Output Levels
Output Isolation
5V@100 mA, 10 @120 mA, 24V@50 mA (jumper selectable)
50V from signal ground
Dual Relay Output (standard)
Relay Type
Load Rating
Two solid state relays, SPST, normally open, Form A
120 mA at 130 Vac or 170 Vdc, 28 ohms series resistance
Analog Output (standard)
Output Levels
Compliance, 4-20 mA
Compliance, 0-10V
Output Resolution
Output Accuracy
Output Isolation
4-20 mA, 0-20 mA, 0-10 Vdc (jumper selectable)
10V ( 0-500 ohm load )
2 mA ( 5 kOhm load or higher)
16 bits (65,536 steps)
0.02% of output span plus conversion accuracy
250V rms working, 2.3 kV rms per 1 minute test
Power Input
Standard Power
Low Power Option
Power Frequency
Power Isolation
Power Consumption
85-264 Vac or 90-300 Vdc (DC operation not UL approved)
10-48 Vdc or 12-32 Vac
DC or 47-63 Hz
250V rms working, 2.3 kV rms per 1 min test
2W typical, 3W with max excitation output
Mechanical
Dimensions
Mounting
Electrical Connections
129 x 104 x 22.5 mm case
35 mm rail per DIN EN 50022
Plug-in screw-clamp connectors
Environmental
Operating Temperature
Storage Temperature
Relative Humidity
Cooling Required
0°C to 55°C
-40°C to 85°C
95% at 40°C, non-condensing
Mount transmitters with ventilation holes at top and bottom.
Leave 6 mm (1/4") between transmitters, or force air with a fan.
Pinout

Laureate Modbus & Serial Output Transmitter for AC Phase Angle Input


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