Commercial Towers (208/230/460V)
Applicable Models
18' Commercial Tower Models (3000 - 4800)
The variable frequency drive controls speed of the sweep arms for all tower dryers. The communication from the HMI to the PLC then correlates to the variable frequency drive. It is important to note that some of the parameters listed below will vary such as voltage, amperage and motor speed. These values should match the motor name plate.
Dip switches must both be set to ON for SIEMENS S7-1200.
If programmed by hand, upload to panel, then download full set to drive.
Applicable Voltages
208V/3ph
230V/3ph
460V/3ph
Parameters
The following parameters apply to the dryer model(s) and voltage(s) as shown.
Motor Data
These parameters depend on machine voltage
99.04
Control Mode
Scalar-Freq
Scalar-Freq
99.06
Nominal Current
6.5 A (208V/3ph) 6.0 A (230V/3ph) 3.0 A (460V/3ph)
99.07
Nominal Voltage
208 V (208V/3ph) 230 V (230V/3ph) 460 V (460V/3ph)
99.08
Nominal Frequency
60 Hz
60 Hz
99.09
Nominal Speed
1725 RPM
99.10
Nominal Power
2 HP
Standard AI
12.15
Unit Selection
mA
V
12.17
AI1 Minimum
0.00
0
12.18
AI1 Maximum
20.00
10
12.19
AI1 Scaled at AI1 Min
0.00
0
12.20
AI1 Scaled at AI1 Max
60.00
60
Start / Stop / Direction
20.01
Ext 1 Commands
In1 Start
In1 Start; In2 Dir
20.04
Ext 1 in 2 Source
Always Off
DI2
20.11
Run Enable Stop Mode
Coast
Coast
20.12
Run Enable 1 Source
DI3
Selected
20.21
Direction
Forward
Request
Start / Stop Mode
21.01
Start Mode
Fast
Automatic
Frequency Reference Chain
28.22
Constant Freq Select 1
Always Off
DI3
28.23
Constant Freq Select 2
Always Off
DI4
28.71
Freq Ramp Set Select
Acc / Dec Time 1
DI5
28.72
Freq Acc Time
3.00
20
28.73
Freq Dec Time
3.00
20
Limits
These parameters depend on machine voltage
30.13
Min Frequency
5.00
-60
30.14
Max Frequency
60.00
60
30.17
Max Current
8.5 A (208V/3ph) 8.0 A (230V/3ph) 4.5 A (460V/3ph)
Panel Display
Options
Edit Home View
DI Delayed Status
Torque
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