YASKAWA L1000A - Page 360

8.4 Option Card Installation
360 YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
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
Figure 8.9 Complementary Outputs for the Interface Circuit
• Open-Collector Outputs
Figure 8. 9
Figure 8.10 Open-Collector Outputs for the Interface Circuit
Terminal Functions
Table 8.3 Option Terminal Functions
Terminal Block Terminal Function Description
TB1
<1> A separate UL Listed class 2 power supply is necessary when the PG requires more than 200 mA to operate.
A+ A+ pulse signal input
• 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
A– A– pulse signal input
B+ B+ pulse signal input
B– B– pulse signal input
Z+ Z+ pulse signal input
Z– Z– pulse signal input
SD NC pin (open) For use when cables shields should not be grounded
FE Ground Used for grounding shielded lines
TB2
IP PG power supply
• Output voltage: 12.0 V ± 5%
• Max output current: 200 mA
<1>
IG PG power supply common
AO A pulse monitor signal
• 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
BO B pulse monitor signal
ZO Z pulse monitor signal
IG Monitor signal common
PG-B3
PG Encoder
470 Ω
330 Ω
330 Ω
A-,B-,Z-
A+,B+,Z+
IG
AO,BO,ZO
0 V
A,B,Z
Vcc
IP
IG
0 V
12 V
Monitor Signals
PG
B3
470 Ω
330 Ω
330 Ω
A+,B+,Z+
IG
AO,BO,ZO
IP
IG
12 V
PG Encoder
A,B,Z
Vcc
0 V
A,B,Z
Monitor Signals
AO
IG IG
ZO
IG
BO
IGIP
A-A+ FESDZ-Z+B-B+
TB1
TB2
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