Siemens HydroRanger 200 HMI - Alternate Duty Backup; Other pump controls; Pump by Rate

Pump control reference
B.8 Alternate Duty Backup
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC
317
B.8
Alternate Duty Backup
Relay function (2.8.1.4.) (Page 195) = Alternate Duty Backup alternates the lead pump each
time the material level cycles.
Relay operation
(for
Relay logic (2.8.1.11.) (Page 199)
= Positive)
The setpoints associated with the relays are grouped so that they can be rotated. Setpoint 1
does not relate directly to Relay 1. The pumping algorithm manages the mapping of
setpoints to relays. When pumps are run, they can RUN only one at a time.
Relay table
Cycle 1
Index
Relays
Setpoints
1
2
3
ON 3 OFF OFF ON
ON 2
OFF
ON
OFF
ON 1
ON
OFF
OFF
OFF
OFF
OFF
OFF
Cycle 2
Index
Relays
Setpoints
1 2 3
ON 3
ON
OFF
OFF
ON 2
OFF
OFF
ON
ON 1
OFF
ON
OFF
OFF
OFF
OFF
OFF
Cycle 3
Index
Relays
Setpoints
1
2
3
ON 3
OFF
ON
OFF
ON 2
ON
OFF
OFF
ON 1
OFF
OFF
ON
OFF
OFF
OFF
OFF