WEG CFW700, Programming And Troubleshooting Manual

Page: 210 / 223

19
Applications
19-20 | CFW700
19.4 MULTISPEED APPLICATION
19.4.1 Description and Definitions
The CFW700 has the MULTISPEED application that allows the speed reference to be set by the values defined
at parameters P1011 to P1018 through the logical combination of digital inputs DI4, DI5 and DI6, having the limit
of eight pre-programmed speed references. It brings advantages such as stability of the pre-programmed fixed
references and electrical noise immunity (isolated digital inputs DIX).
The speed reference selection is done by the logical combination of the digital inputs DI4, DI5 and DI6. Their
respective parameters (P0266, P0267 and P0268) must be set to “Function 1 of the Application (Multispeed)”. If
any digital input is set to “Function 1 of the Application”, the following alarm message will be displayed “A750: Set
a DI for Multispeed” and the speed reference of the inverter will not be enabled.
Output
speed
Accelerating ramp
Time
0 V (open)
0 V (open)
0 V (open)
24 V
24 V
24 V
DI5
DI4
DI6
P1011
P1013
P1014
P1015
P1016
P1017
P1018
P1012
Figure 19.6: Operation of the Multispeed Application
For the operation of the multispeed application, it is necessary to set the parameter P0221 or P0222 to 7 = SoftPLC.
Definition:
„
The Function 1 of the Application in the parameters P0266 to P0268 represents the Multispeed command.
The speed reference selection works according to the table below:
Table 19.4: Multispeed reference
DI6 DI5 DI4 Speed Reference
0 V 0 V 0 V P1011
0 V 0 V 24 V P1012
0 V 24 V 0 V P1013
0 V 24 V 24 V P1014
24 V 0 V 0 V P1015
24 V 0 V 24 V P1016
24 V 24 V 0 V P1017
24 V 24 V 24 V P1018
If any digital input is selected for Multispeed, it should be considered as 0 V.
The parameters P1011 to P1018 define the speed reference value when the Multispeed is operating.