Maintenance; Maintaining Precautions; Scheduled Test - ABB Sentry SSR32 Product Manual

Safety relays

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Maintenance

9.1

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.

9.2

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:

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.

Comply to maintenance precautions. Risk of severe personal injury.

Warning!

2TLC010067M0201 Rev.G

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