Yaskawa PG-X2 User Manual
Encoder Feedback Option Card
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PG-X2
1. Part Number: PG-X2.
2. Applicability: F7, G7, GPD515/G5, G5HHP.
3. Introduction: The PG-X2 encoder feedback option card (Figure 1) is mounted on the drive’s Control Board and performs
speed feedback using the pulse generator (PG) on the motor to correct speed fluctuation caused by motor slip. Motor rotation
direction is detected by phase A and phase B PG pulse inputs. The terms encoder, PG (pulse generator), and pulse train are
used interchangeably in this guide. The card can be used for flux vector control or V/Hz with PG feedback control.
4. Receiving: All equipment is tested against defect at the factory. Report any damages or shortages evident when the
equipment is received to the commercial carrier who transported the equipment.
5. Cautions:
a. Hazardous voltage can cause severe injury or death. Lock all power sources feeding the drive in the “OFF” position.
b. This option card uses CMOS IC chips. Use proper electrostatic discharge (ESD) protective procedures when
handling the card to prevent I.C. damage or erratic drive operation.
c. If other option cards are to be installed at the Option C (2CN) or Option D (3CN) positions (See Figure 2), their
installation and wiring should be completed before installation of this option.
d. Before installing this option, a technically qualified individual, who is familiar with this type of equipment and the
hazards involved, should read this entire installation guide.
Mounting Hole
Connector, Rear
Side of Board to
Control Bd., 4CN
Terminal
Block TA2
Terminal
Block TA1
Terminal TA3
Connect Shield
Here
Ground Lead WireConnects to Grounding
Terminal on Control Board
Figure 1. PG-X2 Encoder Feedback Card
Variable Resistor,
Adjusts
+12V PG Power
Variable Resistor,
Adjusts
+5V PG Powe
2 Mounting Holes
Figure 2. PG-X2 Option Card installation
Yaskawa Electric America, Inc. – www.drives.com
IG.AFD.60, Page 1 of 8
Date: 07/01/04, Rev:04-07
Encoder Feedback Option Card
6. Precautions and Preliminary Installation:
a. Remove contents from package. Verify that a mounting spacer
(P/N 5RNT41028-9) is included with the card. See Figure 3.
b. Disconnect all electrical power to the drive.
c. Remove the drive’s front cover.
d. Check that the “CHARGE” indicator lamp inside the drive is off.
e. Use a voltmeter to verify voltage at incoming power terminals
(L1, L2, L3) has been disconnected.
f. Insert the spacer into the mounting hole in the base of the drive,
just above the top edge of the control board. See Figure 2.
g. Note: When re-installing the cover, please take care not to pinch
any of the encoder wires.
h. Important: GPD 515/G5 models 20P2 to 22P2 and 40P2 to 41P5 have two closely spaced mounting holes. Insert
the spacer into the hole closest to the control board’s connector 4CN. If inserted in the wrong hole, the spacer WILL
NOT properly align with the PG-W2’s mounting hole.
7. PG-X2 Installation: See Figure 2.
a. Position the bottom edge of the option card into the mounting bracket on the control board’s terminal block. Align two
mounting holes in the card with pins on the bracket.
b. Then angle the top edge of the card into place, carefully aligning connector 4CN on the back of the card with
connector 4CN on the control board. Gently press the card into place until 4CN and the spacer click into place.
8. Wiring: Refer to Figure 4 and Tables 1 & 2. Make wire connections between the PG-X2 card and encoder as well as any
external monitoring circuits. Observe the following:
a. The need for the marker Z (C) channel depends on the installed custom (CASE) software. Standard software does
not use the marker pulse.
b. Keep the PG-X2 (i.e. control circuit) wiring separate from main circuit input/output wiring. A separate metallic
grounded conduit with ONLY the PG wiring running through it is preferred.
c. To prevent erroneous operation caused by noise interference, use shielded cable for control signal wiring, and limit
the distance to 50m (165 feet) or less.
d. Recommended cable is twisted pair, 22AWG, with overall shield, such as Belden 9504. Refer to “Electrical
Installation” in the drive technical manual for further information on use of shielded cable. The shielded sheath
connection points on the PG-X2 card are terminal TA3.
e. Strip back insulation for a distance of 0.22 in. on wire leads connected to the PG-X2 terminals.
f. Connect the option card ground wire (E) to the drive’s ground terminal TB3 (12 for G5).
9. Adjustment: The+12VDC and +5VDC outputs of the PG-X2 card are factory calibrated. No adjustment should be
necessary.
10. Cover: Reinstall and secure drive’s front cover.
11. Programming: Table 3 lists all drive parameters related to encoder feedback. Ensure that all of these parameters are
programmed to meet the requirements of the application.
12. Start-up: Refer to Section 2 in the drive’s technical manual for testing and start-up information.
13. IG Storage: Place this instruction guide with the drive’s technical manual.
Figure 3. Mounting Spacer
PG-X2
Yaskawa Electric America, Inc. – www.drives.com
IG.AFD.60, Page 2 of 8
Date: 07/01/04, Rev:04-07
Encoder Feedback Option Card
Table 1. Terminal Functions
Terminal
Block
TA1
TA2
TA3
* Not required for standard software. May be required for custom software.
Terminal
Number
1 +12VDC
2 0V +12VDC, 200mA max
3 +5VDC +5VDC, 200mA max
4 +
5 6 +
7 8 +
9 -
10 0V Common Terminal
1 +
2 3 +
4 5 +
6 7 IG5 Isolated Common Terminal
Power supply for Pulse Generator (PG).
Important: Use either +12V or +5V, but never both at the same time.
A Pulse
B Pulse
Z Pulse*
A Pulse
B Pulse
Z Pulse*
Shield Drain for Encoder Wiring
PG-X2
Function
PG Signal Inputs
RS-422 Level Input
Pulse Monitor Output
RS-422 Level Output
Terminal Symbol
TA1, TA2 M2
Terminal
Screw
Table 2. Terminal and Wire Specifications
Clamping Torque
Lb-in (N-m)
1.8 to 2.2
(0.22 to 0.25)
Wire Range
AWG (mm 2)
26 to 16
(Stranded: 0.14 to 1)
(Solid: 0.14 to 1.5)
Yaskawa Electric America, Inc. – www.drives.com
IG.AFD.60, Page 3 of 8
Date: 07/01/04, Rev:04-07
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