Danfoss VLT AQUA Drive FC 202

Parameter
Setting
Parameter 3-03 Maximum Reference
The maximum reference unit matches the unit in parameter 20-12 Reference/ Feed-
back Unit
Parameter 3-84 Initial Ramp Time
(2 s)
Parameter 3-88 Final Ramp Time
(2 s)
Parameter 3-41 Ramp 1 Ramp Up Time
(8 s depending on size)
Parameter 3-42 Ramp 1 Ramp Down Time
(8 s depending on size)
Parameter 4-11 Motor Speed Low Limit [RPM]
(30 Hz)
Parameter 4-13 Motor Speed High Limit [RPM]
(50/60 Hz)
To set up the feedback settings in the PID controller, use the Closed-loop wizard under Quick Menu, Function Set-up.
Table 92: Example of Settings for Pipe-Fill Mode
Parameter
Setting
Parameter 29-00 Pipe Fill Enable
Disabled
Parameter 29-04 Pipe Fill Rate
(Feedback units)
Parameter 29-05 Filled Setpoint
(Feedback units)
Performance
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Speed
Maximum
speed
Minimum
speed
Initial ramp
Fill rate (units/second)
Closed loop
Time
Pipe fill vertical pipes
Filled setpoint
Illustration 62: Performance Curve for Pipe Fill Mode
8.1.13 Wiring Conguration for a Cascade Controller
See Illustration 63 for an example of a built-in basic cascade controller with 1 variable-speed pump (lead) and 2 xed-speed pumps,
a 4–20 mA transmitter, and system safety interlock.
AQ262141056213en-000201 / 130R0882116 | Danfoss A/S © 2020.09
Wiring Conguration Examples
VLT® AQUA Drive FC 202
Operating Guide