INDEPENDENT RELAY SETPOINTS (P112 to P115)
Independent Relay Setpoints define the critical condition(s) which will cause a relay to
operate based upon the Relay Function (P111) selected.
RELAY A and B SETPOINTS
Relay Functions requiring continuous relay operation until a critical condition subsides
use Relay A and B Setpoints (P112 and P113). Typically, Relay A and B setpoint
values represent a level, entered in Units (P005) or % of Span (P007) as referenced
to Empty (P-006). (Ensure the % symbol is displayed before attempting to enter a
% of Span value, see PROGRAMMING Keypad).
Temperature alarm values are entered in degrees Celsius (°C).
Rate alarms are entered in Units per minute or percent of Span per minute. A positive
value is entered for a filling rate alarm; negative for emptying.
These values are reset when Relay Set Up (P100) is altered.
P112 RELAY A SETPOINT
Enter the critical point for the Relay Function (P111) to be "ON".
values: -999 to 9999
P113 RELAY B SETPOINT
Enter the critical point for the Relay Function (P111) to be "OFF".
values: -999 to 9999
RELAY C and D SETPOINTS
These setpoints are for Relay Functions requiring timed relay operation.
P114 RELAY C SETPOINT
Enter the length of time the relay is to be energized (ON Duration). This
value (in minutes) must be less than the Relay D Setpoint value.
values: 0.000 to 9999
P115 RELAY D SETPOINT
Enter the length of time desired for the Relay Cycle Period. This value
(in minutes) must be greater than the Relay C Setpoint value.
Relay Cycle Period = ON Duration + OFF Duration.
values: 0.000 to 9999
PROGRAMMING
PL-507 78
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