When setting the frequency by analog reference from an external potentiometer, use shielded twisted-pair wires, preparing
wire ends as shown in Figure 3.40. Connect the shield to the ground terminal of the drive.
A – Drive side
B – Connect shield to ground terminal
of drive.
C – Insulation
D – Control device side
E – Shield sheath (insulate with tape)
F – Shield
Figure 3.40 Preparing the Ends of Shielded Cables
NOTICE: The analog signal wiring 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.
u
Switches and Jumpers on the Control Board
The control board is equipped with several switches used to adapt the drive I/Os to the external control signals. Figure 3.41
shows the location of these switches. Refer to Bypass and Drive Control I/O Connections on page 85 for setting instructions.
V
I
A1 A2
Jumper S1
Terminal A1/A2
Voltage/Current Selection
OFF
ON
DIP Switch S2
RS-422/RS-485
Termination Resistor
V
I
FM AM
Jumper S5
Terminal FM/AM
Voltage/Current Selection
Figure 3.41 Locations of Jumpers and Switches on the Control Board
3.5 Control Circuit Wiring
84
YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
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