Short-Circuit At The Lighting - Siemens SIMATIC S7-300 CPU Manual

8 Operation of the Application
8.4 Examples for the operation
8.4.2

Short-circuit at the lighting

Table 8-7
No.
1. Short circuit:
Bridge the lamp connections with wire
until the LED of output OUT 2 lights red.
Remove the short-circuit again.
2. The wait time of 20s has elapsed, so that the
automatic switch-off of output OUT 2 can be
reset.
3. Click on the "RESET" button on the SIMATIC
Panel.
Monitoring of 24 V load circuits
Entry-ID: 61450284, V1.1,
Action
05/2014
Remarks
PSE200U module:
Output OUT 2 is automatically switched
off and takes on state 0. The lighting is
switched off.
The LED of the OUT 2 output lights red.
Operator panel:
Text field "Channel 2" is shaded red.
The "Channel Error 2" message is
displayed in the alarm view.
S7-CPU:
LED for DO 8.1 on
PSE200U module:
The LED of output OUT 2 flashes red.
The automatic switch-off of output OUT 2 is
reset.
PSE200U module:
Output OUT 2 is switched on and takes on
state 1. The lighting is switched on.
The LED of output OUT 2 at the PSE200U
module lights green.
Operator panel:
Text field "Channel 2" is shaded green.
The "Channel Error 2" message is no
longer displayed in the alarm view.
S7-CPU:
LED for DO 8.1 off
65