Siemens SIMATIC ET 200S, Руководство пользователя

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Digital Electronic Modules
11-55
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. 40 g
Module-specific data
Supports clock
synchronized mode No
Number of outputs 4
Cable length
•
Unshielded max. 600 m (164 ft)
• shielded max. 1,000 m
(164 ft)
Voltages, currents, electrical potentials
Rated load voltage L+ (from
power module) 24 VDC
•
Polarity reversal
protection Yes
1)
Total current of outputs (per
module) 2 A
Electrical isolation
•
Between the channels No
•
Between channels and
backplane bus Yes
Permissible potential differ-
ence
•
Between different
circuits 75 VDC / 60 VAC
Isolation tested 500 VDC
Current consumption
•
From load voltage L+
(without load) max. 5 mA per
channel
Power loss of the module Typical 0.8 W
Status, interrupts, diagnostics
Status display Green LED pro
Channel
Diagnostic functions No
Data for selection of an actuator
Output voltage
•
For signal ”1” min
.
L+ (--1 V)
Output current
•
For signal ”1”
-- Rated value
-- Permitted range
0.5 A
7 mA to 600 mA
• For signal ”0” (residual
current) max. 0.3mA (164 ft)
Output delay (with ohmic
load)
•
”0” to ”1” transition max. 100
µ
s
•
”1” to ”0” transition max. 300
µ
s
Load resistor range 48
Ω
up to 3.4 k
Ω
Lamp load max. 5 W
Connecting 2 outputs in
parallel
• For redundant triggering
of a load Yes (per module)
•
To increase
performance No
Actuation of a digital input Yes
Switching frequency
•
with ohmic load 100 Hz
•
with inductive load 2 Hz
•
With lamp load 10 Hz
Limitation (internal) of the
inductive disconnection
voltage Typically L+
(--55 to --60 V)
Reverse voltage protection Yes, when using the
same load voltage
as at the power
module
2)
Short-circuit protection of
the output Yes
3)
•
Response threshold Typically 0.7 to 1.5 A
1)
Polarity reversal can cause interconnection
of the digital outputs
2)
The module must be supplied with power.
3)
Per channel