WEG CFW501 V1.8X, Programming Manual, Page: 124 / 192

Digital and Analog Inputs and Outputs
12-16 | CFW501
12
P0012 – Status of Digital Inputs DI8 to DI1
Adjustable
Range:
Bit 0 = DI1
Bit 1 = DI2
Bit 2 = DI3
Bit 3 = DI4
Bit 4 = DI5
Bit 5 = DI6
Bit 6 = DI7
Bit 7 = DI8 Factory
Setting:
Properties:
ro
Access groups
via HMI:
READ, I/O
Description:
Using this parameter, it is possible to view the status of the product digital inputs, according to the plug-in
module connected. Refer to parameter P0027 in
section 6.1 INVERTER DATA on page 6-1 .
The P0012 value is indicated in hexadecimal, where each bit of the number indicates the status of a digital input,
that is, if BIT
0
is “0”, DI1 is inactive; if BIT
0
is “1”, DI1 is active, and so on, up to DI8. Besides, the determination
of DIx active or inactive takes into account the signal type in the DIx defined by P0271.
The activation of DIx depends on the signal in the digital input and on P0271, as per Table 12.7: Values of P0012
for x from 1 to 8 on page 12-16 . which lists parameters P0271, threshold voltage for activation “V
TH
”, threshold
voltage for deactivation “V
TL
” and status indication of Ix in parameter P0012.
Table 12.7: Values of P0012 for x from 1 to 8
Setting in P0271 Threshold Voltage in DIx P0012
DIx = NPN
V
TL
> 9 V BIT
x-1
= 0
V
TH
< 5 V BIT
x-1
= 1
DIx = PNP
V
TL
< 17 V BIT
x-1
= 0
V
TH
> 20 V BIT
x-1
= 1
NOTE!
Parameter P0012 requires the user to know the conversion between binary and hexadecimal
numerical system.