Siemens SIMATIC S7-400H Manual page 152

Using I/O on the S7-400H
Notes on diodes
• Suitable is any diode of the 1N4003 ... 1N4007 series, or any other with U
>=200 V and I_
• You should separate the chassis ground of the modules from load ground and
install a potential equalization circuit between them
Additional marginal conditions for various modules
DO 8xDC24V/0,5A
• A definite evaluation of the "P short-circuit" and "M short-circuit" diagnosis is not
possible. Deselect these function individually in your configuration.
DO32xDC24V/0,5A
• A definite evaluation of the "P short-circuit" and "M short-circuit" diagnosis is not
possible
DO 16xDC24V/0,5A
• Equipotential bonding of the load circuit should always be referenced to one
point (preferably load minus).
• Channel diagnostics is not supported.
DO 16xDC24V/10mA Ex
• Please note the relevant maximum current and voltage specifications for the
operation of modules in Ex applications.
• Equipotential bonding of the load circuit should always be referenced to one
point (preferably load minus).
7-22
>= 1 A
F
6ES7 322-8BF00-0AB0
6ES7 422-7BL00-0AB0
6ES7 322-8BH00–0AB0
6ES7 322-5SD00-0AB0
Automation System S7-400H Fault-tolerant Systems
_r
A5E00068197-07