YASKAWA A1000 Series Technical Manual page 240

5.7 H: Terminal Functions
No.
H4-01
H4-04
A setting of 031 or 000 applies no drive monitor to the analog output. With this setting, terminal functions as well as FM
and AM output levels can be set by a PLC via a communication option or MEMOBUS/Modbus (through mode).
H4-02, H4-03: Multi-Function Analog Output Terminal FM Gain and Bias
■
H4-05, H4-06: Multi-Function Analog Output Terminal AM Gain and Bias
Parameter H4-02 and H4-05 set the terminal FM and AM output signal level when the value of the selected monitor is at
100%. Parameter H4-03 and H4-06 set the terminal FM and AM output signal level when the value of the selected
monitor is at 0%. Both are set as a percentage, where 100% equals 10 Vdc or 20 mA analog output and 0% equals 0 V or
4 mA. The output voltage of both terminals is limited to +/-10 Vdc.
The output signal range can be selected between 0 to +10 Vdc, -10 to +10 Vdc, or 4 to 20 mA using parameter H4-07 and
H4-08. Figure 5.83 illustrates how gain and bias settings work.
No.
H4-02
H4-03
H4-05
H4-06
Using Gain and Bias to Adjust Output Signal Level
When viewing a gain setting parameter (H4-02 or H4-05) on the digital operator, the analog output will supply a voltage
signal equal to 100% of the monitor value (including changes made from bias and gain settings). When viewing a bias
setting parameter (H4-03 or H4-06), the analog output voltage will supply a signal equal to 0% monitor value.
Example 1: To have an output signal of 5 V at terminal FM when the monitored value is at 100%, set H4-02 to 50%.
Example 2: To have an output signal of 10 V at terminal FM when the monitored value is at 76.7%, set H4-02 to 150%.
Figure 5.83
10 V
Output Voltage
5 V
0 V
0%
240
Name
Multi-Function Analog Output Terminal FM Monitor Selection
Multi-Function Analog Output Terminal AM Monitor Selection
Name
Multi-Function Analog Output Terminal FM Gain
Multi-Function Analog Output Terminal FM Bias
Multi-Function Analog Output Terminal AM Gain
Multi-Function Analog Output Terminal AM Bias
H4-07, 08 = 0
100%
Monitor Value
Figure 5.83 Analog Output Gain and Bias Setting Example 1 and 2
Output Voltage
Gain 150%
Bias 0%
-100%
Gain 100%
Bias 0%
Gain 50%
Bias 0%
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Setting Range
000 to 999
000 to 999
Setting Range
-999.9 to 999.9%
-999.9 to 999.9%
-999.9 to 999.9%
-999.9 to 999.9%
H4-07, 08 = 1
15 V
Gain = 150%
Bias = 0%
10 V
Gain = 100%
Bias = 0%
5 V
Gain = 50%
Bias = 0%
100%
Monitor Value
-5 V
-10 V
-15 V
Default
102
103
Default
100.0%
0.0%
50.0%
0.0%