sc2-2. Pepperl+Fuchs, sc2-2. Datasheet - Page 27

• Manufacturer Part Number: sc2-2.
• Description: Factory Automation
• Manufacturer: Pepperl+Fuchs

8
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 67 79 90 91 • Internet http://www.pepperl-fuchs.com
The test is performed as follows:
- Make the protective field free and enable startup
- Interrupt the protective field at any beam and observe the display of the OSSD status as you do so. It
If the control unit does not receive any fault status, the test is complete.
The periodic verification of the safety function of the system into which the SC2 control system is installed
must also monitor the functions of the electrosensitive protection device. Among other things, the proper
layout, installation and required response time must be checked. Test records of tests that have been car-
ried out must be created and kept.
Troubleshooting
Errors in the system always result in the system making a transition to the secure interlock state. The
OSSDs are then turned off. Errors bring the system to a status that generates an error display.
The output for readiness for startup can be used to indicate an error externally. The output switches on and
off at a rate of once per second in the event of an error
To acknowledge an error, the operator presses the test input for 0.05...1 s, thus executing a reset. The same
effect can be achieved by interrupting the operating voltage briefly. The SC2 goes into a start condition after
a system test has been successfully performed or stops in the error state with the corresponding error dis-
play (see also section 2.5).
For high-frequency electro-magnetic fields with a field intensity of 10 V/m or greater, the control unit can
switch into the secure state. If this error arises, the test contact (reset) should be activated and the SC2 will
eliminate the error state by performing a system reset. If the system is not successful in eliminating the error
state, an attempt should be made to return to normal operation by interrupting the operating voltage for at
must switch from green to red.
Copyright Pepperl+Fuchs, Printed in Germany
SC2-2 control unit
Troubleshooting
25