Page 230 HydroRanger 200 – INSTRUCTION MANUAL 7ML19981FC01
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Appendix D: Pump Control
Alternate Duty Backup (P111 = 53)
Alternates the lead pump each time the material level cycles.
Relay Operation (for P118 = 2)
The setpoints associated with the relays are grouped so that they can be rotated.
Setpoint one does not relate directly to relay one. 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 3 Relays
123
Setpoints
On 3 On On On
On 2 On Off On
On 1 Off Off On
Off 0 Off Off Off
Cycle 1 Relays
123
Setpoints
On 3 Off Off On
On 2 Off On Off
On 1 On Off Off
0ff 0 Off Off Off
Cycle 2 Relays
12 3
Setpoints
On 3 On Off Off
On 2 Off Off On
On 1 Off On Off
Off 0 Off Off Off
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