Swann AMI Deltacon Power Operator's Manual page 68

AMI Deltacon Power
Program List and Explanations
5.2.1.43.5
5.3 Relay Contacts
5.3.1
5.3.1.1
5.3.1.1.1
5.3.1.1.1.1
5.3.1.1.1.25
5.3.1.1.1.35
68
Control timeout: If a controller action (dosing intensity) is constantly
over 90% during a defined period of time and the process value does
not come closer to the setpoint, the dosing process will be stopped
for safety reasons.
Range: 0–720 min
Alarm Relay: The alarm relay is used as cumulative error indicator.
Under normal operating conditions the contact is active.
The contact is inactive at:
 Power loss
 Detection of system faults like defective sensors or electronic
parts
 High case temperature
 Process values out of programmed ranges.
Program alarm levels, hysteresis values and delay times for the fol-
lowing parameters:
 Cond.1 (sc)
 Cond.2 (cc)
 pH
 Ammonia
 Sample Temp. 1
 Sample Temp. 2
 Sample Flow
 Case Temperature low
Conductivity
Cond. 1 (sc)
Alarm High: If the measured value rises above the alarm high value,
the alarm relay is activated and E001, is displayed in the message
list.
Range: 0.000 –3000 S
Alarm Low: If the measured value falls below the alarm low value,
the alarm relay is activated and E002 is displayed in the message
list.
Range: 0.000 –3000 S
Hysteresis: Within the hyst. range, the relay does not switch. This
prevents damage of relays contacts when the measured value fluctu-
ates around the alarm value.
Range. 0.000 –3000 S
A-96.250.451 / 190121