CWPAC
Page
5
Technical Specifications
Ethernet Port 2 (optional)
Type
10/100 Base-T Ethernet port
Connector
RJ45
Isolation
500
Vdc
Ethernet Port 3 (optional)
Type
10/100 Base-T Ethernet port
Connector
RJ45
Isolation
500
Vdc
Inputs/Outputs
Surge Protection
Surge protection meets IEEE C37.90-1978 and IEC 801-5.
Note:
Surge protection applies to all I/O modules.
Analog Input Module
Quantity
8 or 16
Type
Internally or externally sourced, single-ended, 4–20 mA inputs
Connector
Terminal block or remote termination
Resolution
14-bit
Isolated
Voltage
Input
Internally
Sourced
500 Vdc per module to chassis
Externally
Sourced
31 Vdc per channel
Voltage Input
Isolated differential inputs 1–5 Vdc
Current Input
Externally sourced current loop with 1–5 V input module and 250 ohm
resistor across the input terminals or 4–20 mA input module. On-board
isolated loop power supply for internally powered AI.
Input Impedance
> 1 megOhm for 1–5 Vdc, 250 Ohm for 4–20 mA
Common
Mode
Rejection
70 db
Normal
Mode
Rejection
26 db
Input
Filtering
300
milliseconds to 99.9% of input signal
Channel
Settling
Time
680 microseconds
Conversion Time
25 microseconds
Accuracy
0.1% of span 25˚C
0.2% of span –20˚C to 70˚C
0.3% of span –40˚C to 70˚C
Isolated
Voltage
Common Mode
Range
31 Vdc to isolated common
Status Indicator
Normal, Over-range/Under-range, FAIL and OK module status LEDs
Surge
Supression
500 Vdc MOV isolated common to chassis.
31 Vdc transorb across input signals and negative input to chassis
