Dewetron EPAD2 Series User Manual

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EPAD2/CPAD2/CPAD3 series modules • Technical Reference Manual • Printing version 1.0.2 • October 04, 2016
EPAD2/CPAD2-V8 Module
8 channel voltage amplier
Intelligent amplier with integrated 24-bit A/D conversion
8 channel isolated data acquisition
RS-485 or CAN interface
Module specications
xPAD2-V8
Input channels 8 isolated voltage input channels
Input ranges Physical input range: ±50 V
Software selectable: ±100 mV, ±500 mV, ±1 V, ±2.5 V, ±5 V, ±10 V
Resolution 10 µV for all ranges
DC accuracy ±0.02 % of reading ±900 µV
Max. gain drift 20 ppm /°C
Max. offset drift 20 ppm of range /°C
Linearity
0.001 %
Input impedance 1 MΩ
Input connector SUB-D 25
Sampling rate
max. 12.5 S/sec per channel
Bandwidth (-3 dB) 6 Hz
ADC Type 24 bit Delta Sigma Converter
Isolation voltage 350 V
DC
(channel to channel and channel to Bus, Power and Chassis)
Overvoltage protection
350 V
DC
Common mode voltage 350 V
DC
/ 250 V
AC
@ 50 Hz
CMRR (50/60 Hz) 110 dB (140 dB @ DC)
EPAD2-V8
Interface RS-485
Communication speed
9600 bps (2400 to 115200 programmable)
Standard settings 9600 bps, 8 data bits, 1 stop bit, no parity, module address 00 hex
Readout speed depending on baudrate and number of channels (typ. 80 ch/sec. @ 9600 bps)
CPAD2-V8
Interface highspeed CAN
Speci cation CAN 2.0B
Communication speed 50 kBaud to 1000 kBaud
Data format 16 Bit Intel or Motorola
Identi er types standard; extended
Standard settings 500 kBaud; Intel Format
Readout speed 12.5 Hz, 10 Hz, 5 Hz, 2 Hz, 1 Hz, 0.5 Hz, 0.2 Hz or 0.1 Hz programmable
Bus/Power connector
LEMO EGG.1B.304
Power supply voltage
7 to 40V
Power consumption
max. 0.5 W
Dimensions
Base module (W x D x H)
Mounting holes distance
129 x 72 x 34.2 mm (5.1 x 2.8 x 1.3 in.) incl. mounting holes
119 x 7 mm (4.7 x 0.3 in.), 4.2 mm (0.165 in.) diameter
Weight
typically 310 g

Dewetron EPAD2 Series Specifications

General

Brand	Dewetron
Model	EPAD2 Series
Category	Control Unit
Language	English