Only In Voltage Output Mode)/Bfm #51 To #54: Load Resistance Values - Mitsubishi FX3U-4AD User Manual

FX /FX /FX PLC User's Manual - Analog Control Edition
3G 3U 3UC
FX -4DA (4-channel Analog Output)
3U
5.4.17 BFM #50: Setting of output corrective function by load resistance

(only in voltage output mode)/BFM #51 to #54: Load resistance values

The output characteristics of FX
When the load resistance is 1kΩ, the output deviation is approx. -4.3% to 20V in full scale, whereas the
output deviation is approx. 0.15% to 20V in full scale when the load resistance is 1MΩ. When the load
resistance is 30 kΩ or less (1 kΩ to 30 kΩ), the deviation of the output characteristics can be corrected by
specifying the output corrective function (BFM #50) and the load resistance values (BFM #51 to #54).
Analog value
+10V
-32000
1. Setting of output corrective function (BFM #50)
The corrective function by load resistance is valid or invalid by writing a 4-digit hexadecimal number,
H , in the output corrective function setting (BFM #50).
H
ch4
ch3
Set value
0
1
Other than above
values
2. Setting range and initial value of load resistance (BFM #51 to #54)
Set the load resistance value for each channel allocated to the following BFM.
BFM
number
#51 Load resistance value for channel 1
#52 Load resistance value for channel 2
#53 Load resistance value for channel 3
#54 Load resistance value for channel 4
Numeric data type: BFM #50: Hexadecimal (H), BFM #51 to #54: Decimal (K)
-4DA have been adjusted at 30 kΩ load resistance as a factory default.
3U
The deviation of output characteristics is
corrected by the corrective function by load
resistance.
32000
Digital value
: Output characteristics after correction
-10V : Output characteristics before correction
ch1
ch2
Description
Corrective function by load resistance is invalid.
Corrective function by load resistance is valid.
Invalid (setting values unchanged)
Description
Initial value: BFM #50: H0000, BFM #51 to #54: K30000
Setting range (Ω) Initial value (Ω)
1000 to 30000
5 Buffer Memory (BFM)
5.4 Buffer Memory Details
30000
E-33
A
B
C
D
E
F
G
H
I
J