Siemens FUG1010 IP65 NEMA 4X, Руководство по эксплуатации, Страница: 132 / 271

Functions
7.11 Setting Relays
FUG1010 IP65 NEMA 4X
Operating Instructions, 01/2013, A5E02951519-AC
131
7.11 Setting Relays
Relay Functions
Use the [Relay Setup] menu to assign a function to channel relays. The flow meter supports
two types of relay outputs, Alarm Relay and Pulse Relay. Alarm Relay outputs operate in
"fail-safe" mode. The relay(s) are energized under normal conditions - an alarm condition
causes the relay(s) to de-energize until the alarm clears. The Pulse Relay output supports
Totalizer and batch relay functions, with an output pulse width of approximately 200 ms;
maximum activation rate is 2.5 pulses per sec. If Totalizer pulses exceed this rate, excess
pulses are stored in an overflow register. This allows the relay to "catch up" when flow
decreases enough.
Note
Using the <F1> key (Totalizer clear command) also clears all channel Totalizers plus the
overflow register described in the last paragraph.
Relay 1, 2, 3, and 4 Function Assignments
The flow meter, depending upon the model, provides four alarm relays. Please refer to the
Appendix A for wiring details. Relays respond to any of the alarm conditions or data
functions included on the Relay Option List.
Table 7- 14 Relay Option List
Not Used Not Active
Power Off Power Off alarm occurs when power fails.
S S.G. Specific Gravity value relay trip-point.
S Base S.G. S.G. value relay trip-point at reference temperature.
S High Visc Kinematic viscosity (centistokes) exceeds High Setpoint.
S Low Visc Kinematic viscosity (centistokes) falls below Low Setpoint.
S High Temp. High temperature value relay trip-point.
S Low Temp. Low temperature value relay trip-point.
S High Flow Flow rate exceeds high flow set point.
S Low Flow Flow rate falls below low flow set point.
S Flow Alarm Flow rate exceeds or falls below flow set points.
S Fault Alarm Loses receive signal (all paths in fault).
S Spacing Sensor spacing needs adjusting.
S Turbulence Turbulence percentage exceeds alarm setpoint.
S Interface Interface setpoint exceeded.
S Reverse Flow Flow is in negative direction.
S BatchTot Batch/Sample total advances.
S Pos Total Positive total volume advances 1 digit.
S Neg Total Negative total volume advances 1 digit.