Digital Electronic Modules
11-37
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Technical data
Dimensions and weight
Dimensions W x H x D
(mm)
15 x 81 x 52
Weight Approx. 35 g
Module-specific data
Number of inputs 4
Cable length
•
shielded max. 200 m (164 ft)
Voltages, currents, electrical potentials
Number of inputs that can
be addressed
simultaneously
4
•
horizontal installation up
to 60 °C
4
•
all other installation
positions up to 40 °C
4
Electrical isolation
•
Between the channels No
•
Between channels and
backplane bus
Yes
•
Between channels and
load voltage
Yes
•
Between load voltage
and backplane bus
Yes
Approved potential
difference
•
Between different
circuits
75 VDC, 60 VAC
Insulation tested at:
•
Channels against
backplane bus and load
voltage
500 V DC
•
Load voltage against
backplane bus
500 V DC
Current consumption
•
with load voltage L+ Dependent on the
encoder
Power loss of the module Typically 1.6 W
Status, interrupts, diagnostics
Status display Green LED pro
Channel
Interrupts
•
Process alarm
•
Diagnostic alarm
No
Yes, configurable
Diagnostic functions
•
Group error display
•
Reading of diagnostic
data
red LED ”SF”
possible
Monitoring function
•
Short-circuit
•
Wire break
I>7mA*
I < 0.35 mA*
* Only for NAMUR encoders and
contacts with load resistance.
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