Digital Modules
4-81
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Technical Specifications
of the SM 422; DO 8
120/230 VAC/5 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. 800 g
Data for Specific Module
Number of outputs
8
Length of cable
•
Unshielded
•
Shielded
600 m
1000 m
Voltages, Currents, Potentials
Rated load voltage L1
Permitted frequency range
79 to 264 VAC
47 to 63 Hz
Total current of the outputs
Up to 40
C
Up to 60
C
With fan subassembly
Max. 16 A
24 A
Max. 8 A
20 A
Isolation
•
Between channels and
backplane bus
Yes
•
Between the channels
In groups of
Yes
1
Permitted potential difference
•
Between the outputs of the
different groups
500 VAC
Insulation resistance
4000 VAC
Current consumption
•
From the backplane bus
•
From load voltage L +
(without load)
Max. 250 mA
Max. 1.5 mA
Power dissipation of the
module
Typ. 16 W
Status, Interrupts, Diagnostics
Status display
Green LED per
channel
Interrupts
None
Diagnostic functions
Parameters cannot be
assigned
•
Group error display
–
For internal fault
Red LED (INTF)
failed fuse
–
For external fault
Red LED (EXTF)
failed load voltage
Data for Selecting an Actuator
Output voltage
•
At signal “1”
At maximum current
min. L1 (–1.5 Vrms)
At maximum current
min. L1 (–10.7 Vrms)
Output current
•
At signal “1”
Rated value
5 A
Permitted range
10 mA to 5 A
Permitted surge current
(per group)
Max. 50 A per cycle
•
At signal “0” (leakage
current)
Max. 3.5 mA
Output delay (for resistive load)
•
From “ 0” to “1”
Not more than 1 AC
scan cycle
•
At “1” to “0”
Not more than 1 AC
scan cycle
Minimum load current
10 mA
Zero cross inhibit voltage
Max. 55 V
Size of the motor starter
Max. size 5 to NEMA
Lamp load
Max. 100 W
Parallel connection of 2
outputs
•
For redundant triggering of
a load
Possible (only outputs
connected to the same
load)
Triggering a digital input
Possible
Switch rate
•
For resistive load
Max. 10 Hz
•
For inductive load
to IEC 947-5-1, DC 13
Max. 0.5 Hz
•
For lamp load
1 Hz
Short-circuit protection of the
output
Fuse, 8 A, 250 V (per
output)
•
Min. current required for
fuse to blow
Min. 100 A
•
Max. response time
Max. 100 ms
Replacement fuses
•
Wickmann
•
Schurter
•
Littelfuse
Fuse, 8 A, quick-acting
194-1800-0
SP001.1013
217.008