YASKAWA OYMC V1000, Programming Manual

Page: 36 / 408

1.2 b: Application
36 YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
Figure 1.3
Figure 1.3 Setting the Frequency Reference by Voltage Input
• Using Control Circuit Terminal A2 (0 to 10 Vdc voltage input)
Use the same connection like explained for terminal A1 for terminal A2. Make sure
that switch S1 is set to “V” and set the appropriate signal level for terminal A2 by
entering 0 or 1 into parameter H3-09. The terminal A2 function must be set to
frequency bias by entering 0 into parameter H3-10 (refer to
H3-10: Terminal A2
Function Selection on page 176 ).
• Using Control Circuit Terminal A2 (0/4 to 20 mA current input)
Connect input A2 to an external current source such as the one shown in Figure 1.3 .
Make sure that switch S1 is set to “I” and set the appropriate signal level for terminal
A2 by entering 2 (4 to 20 mA) or 3 (0 to 20 mA) into parameter H3-09. The terminal
A2 function must be set to frequency bias by entering 0 into parameter H3-10 (refer
to
H3-10: Terminal A2 Function Selection on page 176 ).
Drive
A1
A2
Frequency reference
(voltage input)
0 to 10 V
Frequency bias
(voltage or current input)
AC Frequency reference common
2 k Ω
㧗
V (+10.5 V, 20 mA power supply)