YASKAWA L1000A Technical Manual page 363

Connection Diagram of PG-X3
Refer to Table 8.8 for a detailed description of the option board terminal functions.
The positioning of jumper CN3 selects the PG encoder power supply voltage (5.5 V or 12 V). Select the voltage level for
the PG encoder connected to the option and motor. If the wrong voltage is selected, the PG encoder may not operate
properly or may become damaged as a result.
Refer to Setting the PG Encoder Power Supply Voltage on page 364
<1> Ground the shield on the PG side and the drive side. If noise problems arise in the PG signal, remove the shield ground from one end of the
signal line or remove the shield ground connection on both ends.
Note: The PG-X3 Option reads a maximum input frequency from the PG of 300 kHz. Be sure to select a PG with an output pulse
frequency of maximum 300 kHz when operating at maximum speed.
Take the following steps to prevent erroneous operation caused by noise interference:
• Use shielded wire for the PG encoder signal lines.
• Use separate conduit or cable tray dividers to separate option control wiring, main circuit input power wiring, and
motor output power cables.
Interface Circuit
Figure 8.11
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
R/L1 U/T1
S/L2 V/T2
T/L3 W/T3
YASKAWA
Drive
CN5-B
or
CN5-C
FE
twisted-pair shielded line
main circuit terminal
Figure 8.12 PG-X3 Option and PG Encoder Connection Diagram
PG X3
26LS32 level
26LS31 level
Figure 8.13 Interface Circuit (PG-X3)
for details.
TB1
A+
PG X3
Option A
B+
B
Z+
Z
SD
NC
FE
CN3
TB2
IP12
IP
IP5
IG
IG
SG
a+
pulse
A
a
b+
B pulse
b
z+
Z pulse monitor signal
z
Ground wire
control circuit terminal
PG Encoder
A+,B+,Z+ A,B,Z
600 Ω
A ,B ,Z
A,B,Z 26LS31 level
a+,b+,z+
a ,b ,z
Monitor Signals
SG
8.4 Option Card Installation
M
PG
monitor signal
monitor signal
X3
8
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