YASKAWA A1000 Technical Manual page 424

8.4 Option Card Installation
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
Terminal Functions
Terminal Block
TB1
TB1
TB2
TB2
<1> A separate UL Listed class 2 power supply is necessary when the PG requires more than 200 mA to operate.
Setting the PG Encoder Power Supply Voltage
For the PG-X3 Option, set the voltage for the PG encoder power supply using jumper CN3 located on the option.
NOTICE: 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.
Table 8.9 Setting the PG Encoder Power Supply Voltage (IP) with Jumper CN3
Voltage Level
Jumper CN3
424
PG X3
26LS32 level
26LS31 level
Figure 8.13 Interface Circuit (PG-X3)
Table 8.8 Option Terminal Functions
Terminal
A+ A+ pulse signal input
A– A– pulse signal input
B+ B+ pulse signal input
B– B– pulse signal input
TB1
Z+ Z+ pulse signal input
Z– Z– pulse signal input
SD NC pin (open)
FE Ground
IP PG encoder power supply
IG PG encoder power supply common
SG Monitor signal common
a+ A+ pulse monitor signal
TB2 a– A- pulse monitor signal
b+ B+ pulse monitor signal
b– B- pulse monitor signal
z+ Z+ pulse monitor signal
z– Z- pulse monitor signal
5.5 V ± 5% (default)
5.5 V 12 V
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
Function
• Inputs for the A channel, B channel, and Z pulses from the PG encoder
• Signal level matches RS-422
Open connection connectors for use when cable shields should not be
grounded
Used as the shield ground termination point.
• Output voltage: 12.0 V ± 5% or 5.5 V ± 5%
• Max. output current: 200 mA
• Output signal for monitoring A channel, B channel, and Z pulses from the
PG encoder
• Signal level matches RS-422
CN3
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Description
<1>
12.0 V ± 5%
5.5 V 12 V
CN3