Appication 1 - Simple Application (Nominal Speed) - WEG CFW100 Programming Manual

APPLICATION EXAMPLES

15.1.1 Appication 1 - Simple application (nominal speed)

This example describes an application where the analogic input signal corresponds as frequency reference. Thus,
the total excursion of analogic signal represents the drive of the motor from its minimum frequency to its maximum
frequency, as presented on
are used to the correct setting.
Requirements:
Motor 1 HP, 220 V, 2.9 A, 1725 rpm, 60 Hz
Min. Frequency = 0 Hz
Max. Frequency = 60 Hz
Parametrization:
(*) Consult Chapter 7 COMMAND AND REFERENCES on page
(**) For AIx consult Chapter 9.1 ANALOG INPUTS on page 9-1
Example:
frequency
P134
(60 Hz)
P133
(0 Hz)
15
15-2 | Micro Mini Drives
Figure 15.2 on page
Table 15.1: Parameters for application 1
Analog Input AI1
Min. Frequency
Max. Frequency
Max. Output Voltage
Interm. Output Voltage
Field Weak. Freq.
Intermediate Freq.
Selection source
Reference source P221 = 1
Rotation sel.
Signal function P231
Gain P232
Input signal P233
Offset P234
Output
0 ....................................... 10 V
0 ....................................... 20 mA
4 ....................................... 20 mA
10 V .................................... 0
20 mA ................................. 0
20 mA ............................... 4 mA
Figure 15.2: Result for application 1
15-2. On Table 15.1 on page 15-2
AI2 Potenciometer
P133
P134
P142
P143
P145
P146
P220
P221 = 2 P221 = 3
P223
P236 P241
P237 P242
P238 -
P239 P244
7-1.
, for potenciometer this parameter is not available.
For AI1 set to 0-10 V (P233=0)
and an analog input of 5 V:
(
5 V
P018(%) =
10 V
Output Freq. = P018 x P134 = 50.0% x 60.0 Hz = 30.0 Hz
AIx Signal
are shown the parameters that
Value
0.0 Hz
60.0 Hz
100.0 %
50.0 %
60.0 Hz
30.0 Hz
0
According application*
0
0
1.000
According application**
0 %
)
x (100.0 %) + 0.0 % x 1.000 = 50.0 %