1.1.1 FM Approved Controllers

Controllers with the suffix ‘L’ have FM approved relay outputs. These controllers are 816L, 808L and 804L.

 

These units are approved for SSI by FM Global according to the FM3545 standard and primarily affect the second alarm block (Alarm 2) which has some restrictions compared with other alarm blocks. These restrictions are generally listed below:

 

• Alarm 2 is strictly assigned to the changeover relay output (OP4) and factory set to inverted action.

• Alarm 2 is only available with High and Low options only and is, therefore, independent of the control setpoint.

• Alarm 2 is only available with Manual Latching, that is, the alarm condition must be removed before acknowledgement.

• Alarm 2 is not available with blocking, that is, it cannot be ignored during start-up of the process.

• Alarm 2 threshold is always protected by password and is, therefore, available in operator Level 2 only. Level 2 is described in section 4.6.

• Level 2 password cannot be disabled.

 

These restrictions cause the lock of some configuration parameters to fixed or restricted range values which cannot be altered through the front panel keys or digital communications interfaces (serial EIA485 or CPI configuration clip). The non-approved versions are freely configurable.

 

This manual describes installation, wiring, configuration and use of both non-FM approved controllers (816, 808, 808SR and 804) and FM approved controllers (816L, 808L, 804L). The latter are covered by additional notes in the relevant sections of this manual.