Siemens S7-400PLC Spezifikationen Seite 145

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Digital modules
4.14 Digital output module SM 422; DO 16 x DC 24 V/2 A; (6ES7422-1BH11-0AA0)
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
145
Output delay (resistive load)
At "0" to "1" transitions
Max. 1 ms
With "1" to "0"
Max. 1 ms
Load resistance range 24 to 4 kΩ
Lamp load Max. 10 W
Wiring two outputs in parallel
For redundant load control
Supported (only outputs of the same group)
For performance increase
Not supported
Triggering a digital input Supported
Switch rate
With resistive load
100 Hz
For inductive load in accordance with IEC 947-51,
DC 13
0.2 Hz at 1 A
0.1 Hz at 2 A
With lamp load
Max. 10 Hz
Internal limiting of the inductive shutdown voltage to Max. -30 V
Short-circuit protection of the output
Threshold
Electronically cyclic
2
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:
Change the signal at the output
Interrupt the load voltage of the module
Briefly disconnect the load from the output
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