Swann AMI Turbitrace Operator's Manual page 67

AMI Turbitrace
Program List and Explanations
5.3.2 & 5.3.3
5.3.2.1
5.3.2.20
5.3.2.300
5.3.2.400
5.3.2.50
5.3.2.1
5.3.2.22
A-96.250.131 / 050220
Relay 1 and 2: The contacts can be set as normally open or nor-
mally closed with a jumper. See
The function of relay contacts 1 and 2 is defined by the user.
NOTICE: The navigation in the menu <Relay 1> and <Relay 2>
is identical. 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.
Function = Limit upper/lower:
When the relays are used as upper or lower limit switches, program
the following:
Parameter: select a process value
Available values: Meas. value, Sample flow.
Setpoint: If the measured value rises above respectively falls below
the set-point, the relay is activated.
Range: 0–250 FNU/NTU
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
Delay: Duration, the activation of the alarm relay is retarded after
the measuring value has risen above/fallen below the programmed
alarm.
Range. 0–7200 Sec
Function = Control upwards/downwards::
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.
Parameter: select a process value (Meas. value, flow)
Relay Contacts 1 and 2, p. 24.
65