YASKAWA A1000 Technical Manual page 90

4.6 Basic Drive Setup Adjustments
Terminal Signal Level
0 to 10 Vdc
A3
-10 to +10 Vdc
0 to 10 V
2 k
Figure 4.8 Setting the Frequency Reference as a Voltage Signal at Terminal A1
Use the wiring example shown in
S1 is set for voltage input.
Current Input
Input terminal A2 can accept a current input signal. Refer to
Table 4.7 Analog Input Settings for Frequency Reference Using a Current Signal
Signal
Terminal
Level
4 to 20 mA
A2
0 to 20 mA
Figure 4.9 Setting the Frequency Reference as a Current Signal to Terminal A2
Switching between Main/Auxiliary Frequency References
The frequency reference input can be switched between the analog terminals A1, A2, and A3 using multi-speed inputs.
to Multi-Step Speed Selection on page 97
Setting 2: MEMOBUS/Modbus Communications
This setting requires entering the frequency reference via the RS-485/422 serial communications port (control terminals R+,
R-, S+, S-).
90
Signal Level
Function Selection
Selection
H3-05 = 0
(Frequency Reference Bias)
H3-05 = 1
Drive
+V 10.5 V, 20 mA power supply
A1 Analog Input 1
A2 Analog Input 2
A3 Analog Input 3
AC Analog input common
-V -10.5 V, 20 mA power supply
Figure 4.8 for any other analog input terminals. When using input A2 make sure DIP switch
Parameter Settings
Signal Level Function
Selection Selection
H3-09 = 2
H3-10 = 0
(Frequency Bias)
H3-09 = 3
DIP switch S1
V I
0 or 4 to 20 mA
for details on using this function.
Parameter Settings
Gain
H3-06 = 0
H3-07
-10 to 10 V
4 k
OR
Table 4.7 to set terminal A2 for current input.
Gain
H3-11
Drive
+V 10.5 V, 20 mA power supply
A1 Analog Input 1
A2 Analog Input 2
A3 Analog Input 3
AC Analog input common
-V -10.5 V, 20 mA power supply
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Notes
Bias
Set DIP switch S4 on the
H3-08
terminal board to "AI".
Drive
+V 10.5 V, 20 mA power supply
A1 Analog Input 1
A2 Analog Input 2
A3 Analog Input 3
AC Analog input common
-V -10.5 V, 20 mA power supply
Notes
Bias
Make sure to set DIP switch S1 on
H3-12 the terminal board to "I" for
current input.
Refer