When setting the frequency by analog reference from an external potentiometer, use shielded
twisted-pair wires and ground the shield of twisted-pair wires to the ground terminal of the
drive.
NOTICE: The analog signal lines between the drive
and the operator station or peripheral equipment should
not exceed 50 meters when using an analog signal from a remote source to supply the frequency reference.
Failure to comply could result in poor system performance.
+V
A1
AC
A
B
C
D
A – Drive
B – Ground terminal (shield connection)
C – (+V) Frequency setting power source
+10.5 Vdc maximum 20 mA
D – (A1) Main speed frequency reference 0
to +10 Vdc (20 kΩ)
or
4 to 20 mA (250 Ω)/
0 to 20 mA (250 Ω)
Figure 3.15 Wiring the Frequency Reference to the Control Circuit Terminals (External
Reference)
3.7 Control Circuit Wiring
YASKAWA ELECTRIC TOEP C710606 25B YASKAWA AC Drive J1000 Installation & Start-Up Manual
59
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Electrical Installation
2/6/2008-14:44
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