Specifications

12
5 Wiring
5.1 Terminal Functions
 PG Signal Output
The PG signal output (phases A and B) may vary according to installation location on the
motor. Refer to Fig. 4 for correct wiring.
In general, motor forward direction is counterclockwise (CCW) as viewed from the load
shaft. For YASKAWA’s motor, phase A of PG output leads phase B by a phase angle of 90°
in clockwise (CW) rotation. According to PG, phase A lags phase B by a phase angle of 90°
in clockwise (CW) rotation. In this case, when PG is installed at the opposite drive end, con-
nect phases A and B output from PG to the option card as it is.
For YASKAWA’s Inverter motor with PG, PG is installed at the opposite drive end. Then,
phase A lags phase B by a phase angle of 90° at motor forward run. (Motor runs CCW as
viewed from PG.) Therefore, when using this motor or similar motors, connect phases A
and B to the option card after replacing phase output. The pulse monitor on this option
shows phase A leading phase B by a phase angle of 90°.
Table 1 Terminal Functions of PG-X2
Terminal Block
Symbol
Pin
No.
Functions
TA1 1 +12 V Power supply for Encoder (PG)
(+12 V, +5 V must not be used at the same time.)
+12 V: 200 mA maximum
+5 V: 200 mA maximum
20 V
35 V
4+ A Pulse
Encoder (Pulse generator, PG) signal input.
RS-422 level input.
5 −
6+ B Pulse
7 −
8+ Z Pulse
9 −
10 0 V Common
TA2 1 + A Pulse
Pulse monitor output.
RS-422 level input.
2 −
3+ B Pulse
4 −
5+ Z Pulse
6 −
7 SG Common
TA3 Shielded sheath connection terminal