Siemens SIMATIC S7-400 Reference Manual page 156

Digital modules
4.20 Digital output module SM 422; DO 16 x AC 20-120 V/2 A (6ES7422-5EH00-0AB0)
● At "0" to "1" transitions
● With "1" to "0"
Zero transition
Size of the motor starter
Lamp load
Wiring two outputs in parallel
● For redundant load control
● For performance increase
Triggering a digital input
Switching frequency
● With resistive load
● With inductive load in accordance with IEC 947-5-1,
● With lamp load
Short-circuit protection of the output
● Fuse-tripping current
● Response time
Replacement fuses
● Littelfuse
Changing fuses
This can result in injury.
If you change a fuse without removing the front connector of the module, you could be injured
by an electric shock.
Consequently, always remove the front connector before you change the fuse.
156
13 DC
WARNING
1 ms
1 AC cycle
Non-zero cross outputs
Max. size 5 to NEMA
Max. 50 W
Supported (only outputs of the same group)
Not supported
Supported
Max. 10 Hz
Max. 0.5 Hz
Max. 1 Hz
Fuse 8A/125 V 2AG (per output)
Min. 40 A
Typ. 33 ms
8 A fuse, fast-blowing
225.008
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08