Siemens S7-400PLC Especificaciones Pagina 177

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Digital modules
4.21 Relay output module SM 422; DO 16 x UC 30/230 V/Rel. 5 A (6ES7422-1HH00-0AA0)
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
177
Switching capacity and service life of contacts
With resistive load
Voltage Current Number of
switching
cycles (typ.)
30 VDC
60 VDC
125 VDC
230 VAC
5.0 A
1.2 A
0.2 A
5.0 A
0.18 million
0.1 million
0.1 million
0.18 million
For inductive load in accordance with IEC 947-5-1, 13 DC/15 AC
Voltage Current Number of
switching
cycles (typ.)
30 VDC
(τ=7 ms max.)
5.0 A 0.1 million
230 VAC
(pf=0.4)
5.0 A 0.1 million
Size of the motor starter Max. size 5 to NEMA
Lamp load Max. 60 W
Contact protection (internal) None
Wiring two outputs in parallel
For redundant actuation of a load
Supported (only outputs of the same group)
For performance increase
Not supported
Triggering a digital input Supported
Switching frequency
Mechanical
Max. 20 Hz
With resistive load
Max. 10 Hz
With inductive load in accordance with IEC 947-5-
1, 13 DC/15 AC
Max. 1 Hz
With lamp load
Max. 1 Hz
Note
Use a suppressor circuit in environments with high humidity and where sparks might occur at
the relay contacts. This will increase the life of the relay contacts.
To do this, connect an RC element or a varistor parallel to the relay contacts or to the load.
The dimensions depend on the size of the load.
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