CleaverBrooks ADAC 1000, Operation Manual

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Chapter 3 — Commissioning
3-18 Part No. 750-386
3.13.2 - Pump Auto Restart
This feature allows for Automatic Pump Restart after an Analog Low
Water Cutoff Alarm.
• Requires tank level transmitter.
• Pump Lead Lag must be enabled to auto restart pumps.
• Pump Restart Level entry must be less than the tank level
transmitter span value.
• Pump Restart level entry must be greater than the tank level low
alarm value.
After an Analog Low Water Cutoff the pumps will automatically
restart when the Tank Level rises above the Pump Auto Restart
Level. If desired, the LWCO alarm may be acknowledged from the
HMI; as long as tank level is above LWCO level the pump will restart
even if tank water level is still below the auto restart level. Should
an analog LWCO alarm occur with Pump Auto Restart disabled,
Pump Lead Lag will be automatically disabled with manual
intervention required to restart the pumps.
In most cases the analog LWCO level should be set above the
discrete LWCO switch.
Should the discrete Low Water Cutoff Switch be tripped, Pump Lead
Lag remains enabled but alarm acknowledgment is required to
restart the pumps.
Figure 3-19 Pump Configuration (after login)