GE AF-600 FP Design Manual page 104

5.1.13 Cascade Controller Wiring Diagram
The wiring diagram shows an example with the built in BASIC Cascade Controller with one variable speed pump (lead) and two fixed speed pumps, a 4-20 mA
transmitter and System Safety Interlock.
5.1.14 Start/Stop Conditions
Commands assigned to digital inputs. See Digital Inputs, parameter group ID-40.
Start (SYSTEM START /STOP)
Lead Pump Start
Coast (EMERGENCY STOP)
Safety Interlock
Function of buttons on keypad:
Hand
Off
Auto
Variable speed pump (lead)
Accels (if stopped and there is a demand)
Accels if SYSTEM START is active
Coast to stop
Coast to stop
Variable speed pump (lead)
Accels (if stopped by a normal stop command) or
stays in operation if already running
Decels
Starts and stops according to commands via ter-
minals or serial bus
AF-600 FP Design Guide
Fixed speed pumps
Staging (if stopped and there is a demand)
Not affected
Cut out (built in relays are de-energized)
Cut out (built in relays are de-energized)
Fixed speed pumps
Destaging (if running)
Decels
Staging/Destaging
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