Milltronics HydroRanger Plus - Page 74

P111 RELAY FUNCTION (continued)
1. to display the Auxiliary Function symbol,
2. or , to scroll access the alarm designations and...
3. when the desired designation is displayed.
ALARM OPERATION
Relay A / B Setpoints (P112 / P113) set the critical points (based on the Relay
Function) where, in the RUN mode...
1. Alarm Indicators (if programmed) are switched "ON" and OFF"
2. Relays are "energized" and "de-energized"
For most Relay Functions, setpoint values represent material levels, entered in Units
(P005) or percent of Span (P007) as referenced to Empty (P-006).
Temperature alarm values are entered in degrees Celsius (°C). Rate alarms are
entered in Units / minute or percent of Span per minute. A positive value is entered for
a filling rate alarm; negative for emptying.
RELAY FUNCTION SETPOINTS
*
RELAY OCCURS
A B ACTION WHEN
Level H or HH 85% 70% de-energizes level rises to 85%
energizes level falls to 70%
Level L or LL 15% 30% de-energizes level falls to 15%
energizes level rises to 30%
In Bounds
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80% 50% de-energizes level falls to 78%
energizes level rises to 82%
de-energizes level rises to 52%
energizes level falls to 48%
Out of Bounds
▲
80% 50% energizes level falls to 78%
de-energizes level rises to 82%
energizes level rises to 52%
de-energizes level falls to 48%
Rate of Change +10% +5% de-energizes fill rate rise to 10%/min
energizes fill rate fall to 5%/min
- 10% - 5% de-energizes empty rate rise to 10% / min
energizes empty rate fall to 5% / min
Temperature 60 55 de-energizes temperature rises to 60 °C
energizes temperature falls to 55 °C
- 30 - 25 de-energizes temperature falls to -30 °C
energizes temperature rises to -25 °C
* Values shown are for illustration purposes only. Enter values which apply to your particular installation.
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2% factory set hystersis, adjustable via P116
PL-507 74