Siemens HydroRanger 200 HMI - Pump; Totalizing and Sampling; Relay Status - Navigation Pane

Operating
7.3 Relays
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC
97
7.3.4
Pump
Level
In pump down, the function goes on when the level rises to the ON setpoint and goes off
when the level lowers to the OFF setpoint. In pump up, the function goes on when the level
lowers to the ON setpoint and goes off when the level rises to the OFF setpoint.
7.3.5
Totalizing and sampling
For more details, refer to Totalizing pumped volume (Page 127). Relays are normally de-
energized; contact closure is approximately 200 ms duration.
7.3.6
Relay status - Navigation pane
When the fail-safe timer expires, pump control relays respond as previously described.
However, alarm relays will respond in the following manner:
Fail-safe mode
Relay status
High Alarm
Low Alarm
Fail-safe High ON OFF
Fail-safe Low
OFF
ON
Fail- safe Hold
HOLD
HOLD
Upon entering the Navigation View, all pump control relays will be turned OFF. Alarm relays
will hold their prior status.
Note
•
If the relay status can affect plant operation or personnel safety, it is advisable to override
the relay functions or disconnect the relay wiring during calibration.
•
Keep power disconnected at main breaker when device cover is opened.