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8
Maintenance
8.1
Maintaining precautions
Warning!
A defective safety relay shall be replaced with a new. Never bypass the safety circuit. Repair
and exchange of parts of the safety relay is forbidden. That may impair the safety of the
system and could lead to serious personal injury. In case of breakdown or damage to the
safety relay, contact nearest ABB Electrification service office or reseller.
ABB will not accept responsibility for failure of the functions if the installation and
maintenance requirements shown in this document are not implemented. These requirements
form part of the product warranty.
8.2
Scheduled test
Scheduled test, high demand application
All safety relays and connected safety devices used in high demand applications must be
tested once a year.
Scheduled test, low demand application
All safety relays and connected safety devices used in low demand applications must be tested
every third year.
Test sequence
Test should be conducted according to:
1.
Set inputs to inactivate outputs.
2. Wait until all outputs are in off-state.
3. Set inputs to activate outputs.
4. Monitor that outputs are activated.
2TLC010062M0201 Rev.F
Comply to maintenance precautions. Risk of severe personal injury.
17
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