A-96.250.511 / 091120
AMI Turbiwell
Program List and Explanations
98
Note:
The navigation in the menu <Relay 1> and <Relay 2> is
equal. For reason of simplicity only the menu numbers of Relay 1
are used in the following.
1
First select the functions as:
- Limit upper/lower,
- Control upwards/downwards,
- Timer
- Fieldbus,
2
Then enter the necessary data depending on the selected func
-
tion.
When the relays are used as upper or lower limit switches, program
the following:
5.3.2.20
Parameter
: select a process value
Available values: Meas. value, Sample flow.
5.3.2.300
Setpoint
: If the measured value rises above respectively falls below
the set-point, the relay is activated.
Range: 0–250 FNU/NTU
5.3.2.400
Hysteresis:
within the hysteresis range, the relay does not switch.
This prevents damage of relay contacts when the measured value
fluctuates around the alarm value.
Range: 0–250 FNU/NTU
5.3.2.50
Delay:
Duration, the activation of the alarm relay is retarded after the
measured value has risen above/fallen below the programmed
alarm.
Range. 0–7200 Sec
The relays may be used to drive control units such as solenoid
valves, membrane dosing pumps or motor valves. When driving a
motor valve both relays are needed, relay 1 to open and relay 2 to
close the valve.
5.3.2.22
Parameter
: select a process value (Meas. value)
5.3.2.32
Choose the respective actuator:
Time proportional
Frequency
Motor valve
Examples of metering devices that are driven time proportional are
solenoid valves, peristaltic pumps.
Dosing is controlled by the operating time.
5.3.2.1
Function = Limit upper/lower:
5.3.2.1
Function = Control upwards/downwards:
Actuator = Time proportional
