GE Industrial Solutions AF-600 FP Apogee_FLN - Manual (Page 10)

The PID controller in the drive supports two feedback values and two setpoints. The feedback can be received in the form of network bus signals and/or standard
0-10 V transmitters. The 2 set-point controller is capable of controlling return fans based on a fixed differential flow, secondary pumping systems, and so on. This
can be used to supplement the BMS system to save on points or capacity. For details on use of the two feedback/setpoint feature, refer to the Operating
Instructions. Data points 43 and 44 show the status of an FLN command to the drive.
The points PI GAIN and PI TIME are gain parameters similar to the P and I gains in the FLN TECs. The GE PI loop is structured differently than the Siemens loop, so
there is not a one-to-one correspondence between the gains. The following formulas allow translation between GE and Siemens gains.
Converting from GE PI gains to Siemens P and I gains:
P GainSIEMENS = PI GainGE × 0.0015
I GainSIEMENS =
PI GainGE
PI TimeGE
× 0.0015
I GainSIEMENS =
PI GainGE
PI Time GE
× 0.0015
Converting from Siemens P and I gains to GE PI gains:
PI GainGE = P GainSIEMENS × 667
PI Time GE =
P GainSIEMENS
I GainSIEMENS
2.1.17 Sleep Mode (59)
Sleep mode automatically stops the drive when demand is low over a period of time. When the system demand increases, the drive restarts the motor to reach
the desired output. Sleep mode has great energy savings potential and saves wear and tear on equipment. Unlike a setback timer, the drive is always available
to run when a preset “wakeup” demand is reached. See parameter group AP-4# Sleep Mode and AP-2# No-Flow Detection in the AF-600 FP Programming
Guide for more detail.
2.1.18 Terminals 53, 54, (87-88)
Two analog voltage/current input terminals 53 and 54 (0-10 VDC)/(0-20 mA) are provided for reference or feedback signals. The applied electrical signal can be
read by data points 87 to 88 in volts and mA. This can be very useful during commissioning to calibrate transmitters. This can also be used to convert any other
analog transmitter in the installation into a digital bus signal, even if the signal is not used by the drive. In this case, the input terminal should be programmed to
No Function so it does not influence the operation of the drive.
2.1.19 Warnings and Alarms (90-94)
The drive displays a warning or tripped by a fault condition. It also can retrieve the last warning or fault trip for display. The drive can be reset through the FLN
serial bus to resume normal drive operation.
2.1.20 Error Status (99)
Data point 99 is implemented in the point map but is not used in this application.
AF-600 FP Apogee FLN Operating Instructions
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