Digital Modules
4-61
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Technical Specifications of the SM 422; DO 16
24 VDC/2 A
Programming package
Associated programming
package
As of STEP 7 V 2.0
Dimensions and Weight
Dimensions W
H
D
(in millimeters)
25
290
210
Weight
Approx. 600 g
Data for Specific Module
Number of outputs
16
Length of cable
•
Unshielded
•
Shielded
600 m
1000 m
Voltages, Currents, Potentials
Power rated voltage of the
electronics L+
24 VDC
Rated load voltage L+
24 VDC
Aggregate current of
the outputs (two outputs
per supply group)
Up to 40
C
Up to 60
C
Max. 3 A
Max. 2 A
Isolation
•
Between channels and
backplane bus
Yes
•
Between the channels
In groups of
Yes
8
Permitted potential difference
•
Between the different
circuits
75 VDC / 60 VAC
Insulation tested with
•
Channels against
backplane bus and load
voltage L+
500 VDC
•
Between the outputs of the
different groups
500 VDC
Current consumption
•
From the backplane bus
•
Power supply and load
voltage L+ (no load)
Max. 160 mA
Max. 30 mA
Power dissipation of the
module
Typ. 5 W
Status, Interrupts, Diagnostics
Status display
Green LED per
channel
Interrupts
None
Diagnostic functions
None
Data for Selecting an Actuator
Output voltage
•
At signal “1”
Min. L+ (-0,5 V)
Output current
•
At signal “1”
Rated value
2A
Permitted range
5 mA to 2.4 A
•
At signal “0” (leakage
current)
Max. 0.5 mA
Output delay (for resistive load)
•
From “0” to “1”
Max. 1 ms
•
At “1” to “0”
Max. 1 ms
Load resistor range
12
to 4 k
Lamp load
Max. 10 W
Parallel connection of 2
outputs
•
For redundant triggering of
a load
Possible (only outputs
of the same group)
•
To increase performance
Not possible
Triggering a digital input
Possible
Switch rate
•
For resistive load
•
For inductive load to IEC
947-51, DC 13
100 Hz
0.2 Hz at 1 A
0.1 Hz at 2A
•
For lamp load
Max. 10 Hz
Limit (internal) of the inductive
circuit interruption voltage up to
Max. -30 V
Short-circuit protection
of output
1
•
Threshold on
Electronically cyclic1)
2.8 to 6A
1) A supply group always consists of two adjacent
channels starting with channel 0. Channels 0 and 1, 2
and 3 and so on up to 14 and 15 therefore form one
supply group.
2) Following a short circuit, reclosing under a full load is
not guaranteed. To prevent this, you can do one of the
following things:
•
Change the signal at the output
•
Interrupt the load voltage of the module, or
•
Briefly disconnect the load from the output
