YASKAWA L1000A Technical Manual page 360

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.
• Limit the length of all motor output power cables to less than 100 m. Limit the length of open-collector output lines to
less than 50 m.
• Use separate conduit or cable tray dividers to separate option control wiring, main circuit input power wiring, and
motor output power cables.
Interface Circuit
• Complementary Output
Figure 8.8
• Open-Collector Outputs
Figure 8.9
Terminal Functions
Terminal Block
TB1
TB2
<1> A separate UL Listed class 2 power supply is necessary when the PG requires more than 200 mA to operate.
360
PG-B3
330 Ω
470 Ω
330 Ω
Figure 8.9 Complementary Outputs for the Interface Circuit
PG B3
330 Ω
470 Ω
330 Ω
Figure 8.10 Open-Collector Outputs for the Interface Circuit
Table 8.3 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 power supply
IG PG power supply common
AO A pulse monitor signal
TB2 BO B pulse monitor signal
ZO Z pulse monitor signal
IG Monitor signal common
IP Vcc
12 V
A+,B+,Z+ A,B,Z
A-,B-,Z-
0 V
IG 0 V
AO,BO,ZO
Monitor Signals
IG
Vcc
IP
12 V
A+,B+,Z+
A,B,Z
A ,B ,Z
0 V
IG
AO,BO,ZO
Monitor Signals
IG
Function
• Pulse signal inputs from the PG.
• Signal inputs from complementary and open-collector outputs
• Signal level
H level: 8 to 12 V
L level: 2.0 V or less
For use when cables shields should not be grounded
Used for grounding shielded lines
• Output voltage: 12.0 V ± 5%
• Max output current: 200 mA
• Outputs the monitor signal for the A, B, and Z pulses from the PG speed
control card
• For open collector outputs from the option
• Max voltage: 24 V
• Max current: 30 mA
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
PG Encoder
PG Encoder
Description
<1>