ABB SM500F User Manual page 115

SM500F
Field mountable paperless recorder
IM/SM500F Rev. Z
Select the action following a power failure and a digital signal to stop and
start the F0 value calculation:
Stop/Go recovery
Last – On power recovery, the F0 value calculation continues in the
same state as before the failure, i.e. stopped or running.
Stop – F0 value calculation stops.
Go – F0 value calculation continues from the last recorded value.
Stop/Go source
Select a signal source to stop and start the F0 value calculation; refer to
Appendix A, page 146 for a description of the available sources.
Note. This signal is edge-triggered. A rising edge (inactive to active) starts
the calculation. A falling edge (active to inactive) stops the calculation.
Select a 'Reset source' signal (see Appendix A, page 146) – an
edge-triggered signal to reset the calculation on a rising edge.
Default values for the target temperature, Z factor and time (D) value are
entered but can be changed.
Set the 'Preset count' value – the value the F0 value calculation counts
from and the value applied when the F0 count is reset.
Set the 'Predetermined count' value – the value at which the F0 count
stops or wraps.
Note.

The 'Preset count' value must be lower than the 'Predetermined
count' value.

Set the required number of decimal places on the 'Predetermined
count' value.
Set the 'Intermediate count' value – the value at which a digital source is
activated. This can be used as an alarm threshold to indicate when the
'Predetermined count' value is about to be reached.
7 Configuration
113