GE Industrial Solutions AF-600 FP Apogee_FLN - Manual (Page 13)

28 CMD COAST In most cases, it is necessary to set this point to [NO] to make the drive run. If this is set to [COAST] while the
drive is running, the drive will shut off immediately and the motor will coast to a stop. When set to [COAST],
the lower right corner of the drive display shows UN. READY (unit ready). The drive will not start in either HAND
mode or through discrete control signals until point 28 is set to [NO]. drive par. O-50 Coasting Select, can
defeat this. See the AF-600 FP Operating Instructions for details. Because point 28 can keep the drive from
operating in any mode, this is commonly used to provide a safety interlock function.
35 RUN ENABLE In most cases, it is necessary to set this point [ON] to make the drive run. If this is set to [OFF] while the drive
is running, the drive will decelerate to a stop. When set to [OFF], the lower right corner of the display shows
STAND BY. When OFF, the drive can be started in HAND mode from the keypad. It can also be started using
a hard-wired discrete run command, as when par. O-53 Start Select, is set to digital input.
Network Outputs from the drive:
The points listed in Strategy One are commonly used.
3.1.3 Strategy Three
FLN Function – Monitor frequency converter operation
Drive Control – From a hard-wired system, including system feedback
Drive Mode – Closed Loop
The frequency converter follows hard-wired run/stop signals. The Drive uses its internal PID controller to control motor speed. The feedback signal is hard wired
to the analog input and the set-point is programmed into the drive. The FLN is used to monitor the status of the Drive and the value of the PID controller set-point
and feedback.
Network Inputs to the frequency converter:
Because the FLN is simply monitoring the operation of the frequency converter, it provides no inputs.
Network Outputs from the frequency converter:
In addition to the points listed in Strategy One, it may be useful to monitor the following points related to the operation of the PID controller.
Feedback:
60 INPUT REF This is the set-point for the PID controller. Please consult the AF-600 FP Design Guide for further information on how to set
up the PID controller.
65 PI FEEDBACK This is the value of the feedback signal in % for the PID controller.
3.1.4 Strategy Four
FLN Function – Provide the frequency converter with set-point and feedback values using the PID controller to determine motor speed
Drive Control – From the FLN
Drive Mode – Closed Loop
The frequency converter follows run/stop signals from the FLN. The FLN receives the feedback signal from the controlled system. It sends this and the desired
set-point to the PID controller. The frequency converter compares the feedback signal with the set-point and adjusts the speed of the Drive accordingly.
AF-600 FP Apogee FLN Operating Instructions
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