YASKAWA Inverter Spécifications Page 48

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3.9 Main Frequency Reference
u
DIP Switch S1 Analog Input Signal Selection
The main frequency reference can either be a voltage or current signal input at terminal A1.
When using input A1 as a voltage input, set DIP switch S1 to “V” (right position, default setting) and program parameter
H3-01 to “0” (0 to +10 Vdc with lower limit) or “1” (0 to +10 Vdc without lower limit).
To use current input at terminal A1, set the DIP switch S1 to "I" and set parameter H3-01 = “2” or “3” (4-20 mA or 0-20 mA).
Table 3.11 Frequency Reference Configurations
Voltage Input Current Input
+10.5 V
20 mA current
Main speed frequency
reference (voltage input)
Frequency reference
common
Drive
+V
A1
AC
0 to 10 V
+10.5 V
20 mA current
Main speed
frequency reference
(current input)
Frequency
reference
common
+V
A1
AC
Drive
4 to 20 mA input
or
0 to 20 mA input
I V
DIP Switch S1
Figure 3.19 DIP Switch S1
Table 3.12 DIP Switch S1 Settings
Setting Value Description
V ( right position) Voltage input (0 to 10 V): default setting
I ( left position) Current input (4 to 20 mA or 0 to 20 mA)
Table 3.13 Parameter H3-01 Details
No. Parameter Name Description
Setting
Range
Default
Setting
MEMOBUS
Register
H3-01
Frequency ref. (voltage/
current)
terminal A1 signal level
selection
Selects the signal level for terminal A1.
0:
0 to +10 V, unipolar input (negative frequency reference
values are zeroed)
1: 0 to +10 V, bipolar input (negative frequency reference
changes the direction)
2: 4 to 20 mA
3: 0 to 20 mA
0 to 3 0 0
3.9 Main Frequency Reference
48
YASKAWA ELECTRIC SIEP C710606 31A YASKAWA AC Drive – J1000 Technical Manual
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