GE GFK-2958E, User Manual

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Chapter 5 Detailed Descriptions of I/O Modules
GFK-2958E RSTi-EP User Manual 271
Specifications EP-4264
System data
Data Process, parameter and diagnostic data depend on the network
adapter used (refer to the table in the section,
Order and
Arrangement of the Modules )
Interface RSTi-EP I/O communication bus
System bus transfer rate 48 Mbps
Inputs
Number 4
Output levels
1. Voltage (0 – 5 V, ±5 V, 0 – 10 V, ±10 V, 1 – 5 V, 2 – 10 V)
2. Current (0 – 20 mA, 4 – 20 mA)
Response time 1 ms for 4 channels
Resolution 16 bits
Accuracy 0.1 % FSR max., 0.05 % FSR typ.
Temperature coefficient 20 ppm voltage / 31 ppm current measurement / K
Max. error between T
min
and T
max
±220 ppm FSR
Monotony Yes
Crosstalk between the channels ±0.001 % FSR max.
Repeat accuracy < ±1 mV eff.
Output ripple max. 0.001 %
Voltage load resistance
≥ 1 kΩ (at > 50 °C (122 °F) max ambient temperature, total sensor
current of 10 mA per channel but 25 mA per module)
Current load resistance ≤ 600 Ω
Actuator connection 2-wire (current and voltage; automatic detection), 4-wire (voltage)
Short-circuit-proof Yes
Module diagnosis Yes
Individual channel diagnosis Yes
Substitute value Yes
Supply
Supply voltage 20.4V – 28.8V
Current consumption from system current path
I
SYS
,
8 mA
Current consumption from output current path
I
OUT
85 mA
General data
Weight 98 g (3.47 oz)
For additional general data, refer to the section, General Technical Data for I/O Modules .