P112 RELAY A SETPOINT
Enter the critical point for the desired action to occur (based on the Relay Function selected).
values: -999 to 9999
P113 RELAY B SETPOINT
Enter the critical point for the desired action to occur (based on the Relay Function selected).
values: -999 to 9999
P 116 BOUND ALARM HYSTERISIS
For ‘in bounds’ and ‘out of bounds’
Relay Functions (P111 = 2 and 3 respectively),
a hysterisis or dead band prevents relay
chatter due to material level fluctuations
at the upper or lower setpoint.
Enter hysterisis in % of span or
units of P005. (Factory set at 2%).
The hysterisis value is applied
above and below the upper
and lower bound setpoints.
P129 RELAY FAILSAFE
Use this feature for relay failsafe operation independent from the Failsafe Material Level (P070).
When accessed, the Relay Symbol is displayed in the Point Type field and the Relay
Number (corresponding to the SAM-20 terminals) is displayed in the Point Number field.
Select: "OFF" (preset) to have the relay respond to the Failsafe Material Level (P701).
"HOLd to hold the relay at the "last known" state until normal operation resumes,
"dE" to have the relay de-energize immediately, or
"En" to have the relay energize immediately,
To select an independent Relay Failsafe option value:
1. to display to the Auxiliary Function symbol,
2. or to scroll access the failsafe options.
3. with the desired option displayed.
values: "OFF"
"HOLd"
"dE"
"En"
%
actual ‘ on
P116, hysterisis
setpoint
actual ‘off ’
e.g. in bounds, lower setpoint
P116, hysterisis
APPLICATIONS PARAMETERS
PL-532 43
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