Fieldbus interface
Protocol PROFIBUS-DP/MODBUS RTU
Baud rate PROFIBUS DP
9.6kbps/19.2kbps/45.45kbps/93.75Kbps/187.5Kbps/500Kbps/1.5Mbps
MODBUS RTU 1200/4800/9600/19200/38400/57600 bps
Fieldbus capacity 32 nodes per segment
Degree of protection
M10x IP20
MD21/MD31 IP54 from module front
Environmental conditions
Storage -40 ~ +85°C
Normal operation 24VDC type -10 ~ +60°C
110/240VAC type Vertical mounting: -10 ~ +60°C
Horizontal mounting: -10 ~ +55°C
Humidity 15% up to 95% without dew
Derating accepted operating altitude 4500m
Without derating operating altitude 2000m
EMC environment Equipment in the system complies with EMC requirement of CE/CCC certificate.
Power supply system complies with IEC61000-2-1, IEC61000-2-2, especially the system in which
VSD/frequency converters are used.
Metering accuracy
Phase current Range: 0.4-8 × phase CT primary amps Accuracy: ±2% or ±0.01A, whichever is greater
Earth fault current Full scale: 1.2 × RCT nominal current Accuracy: ±2% RCT primary
Line voltage (M102 only) Voltage measurement range: 100V - 690V Accuracy: ±2%
Power (only for M102) Accuracy: ±5% or ±0.1kW, whichever is greater
Thermistor input (only for M102) Sensor type: positive temperature coefficient PTC RHOT=100-10,000 Ω
Accuracy: ±2% or 10Ω which is greater
Installation
Mounting MCU On TS35 DIN rail
With 3 screws ST4.2 (tightening torque 4.5Nm)
With 2 screws (tightening torque 0.1Nm)
Mounting position (MCU) Vertical (DIN and screw)
Horizontal (screw only)
Dimension MCU 110mm X 140mm X 75mm
MD21 91mm X 75mm X 24.3mm
MD31 88mm X 50mm X 24.3mm
Wiring size Terminal X1 DC type 1.5mm
2
AC type 2.5mm
2
Terminal X3 2.5mm
2
Terminal X4 2.5mm
2
Tightening torque
96 M O TO R C O N T RO L A N D PR OT E C T I O N U N IT M 10 X U S E R G U I D E
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