Swann AMU Powercon Operator's Manual page 58

AMU Powercon
Program List and Explanations
5.2.1.43
5.2.1.43.12
5.2.1.43.22
5.2.1.43
5.2.1.43.13
5.2.1.43.23
5.2.1.43.3
5.2.1.43.4
5.2.1.43.5
5.3 Relay Contacts
5.3.1
52
Control Parameters: if Parameters = Sample flow
Setpoint
Range: 0 –50 l/h
P-Band:
Range: 0 –50 l/h
Control Parameters: if Parameters = Cond. uc.
Setpoint
Range: 0 S–300 mS
P-Band:
Range: 0 S–300 mS
Reset time: The reset time is the time till the step response of a sin-
gle I-controller will reach the same value as it will be suddenly
reached by a P-controller.
Range: 0–9'000 sec
Derivative time: The derivative time is the time till the ramp re-
sponse of a single P-controller will reach the same value as it will
be suddenly reached by a D-controller.
Range: 0–9'000 sec
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:
 Alarm Conductivity
 Sample Flow
 Sample Temp.
 Case Temp. high
 Case Temp. low
A-96.250.331 / 230320