Some questions regarding Inverters (VFD Drives) by YASKAWA ?

Some questions regarding Inverters (VFD Drives) by YASKAWA :

1) What's PG card ? Why its used in inverters ?

2) What's PG encoder ? Why its used ?

3) What's Z Pulse & Z Pulse Fault ?

4) What's node setup & hence node setup error ?

5) How to check the ratios between voltage & frequency if V/f setting is not operating as expected ?

6) How to Check the maintenance time for the capacitors ?

7) How to check maintenance time for the IGBTs ? How can we get to know this ?

8) How to check/measure the drive temperature ?

thanxxX

............................................................................................................................................

Complete Answering to all your questions
would need to write a few hundred pages thick technical manual.

It would be more wise to ask only one significant question in one post

............................................................................................................................................

1) What's PG card ? Why its used in inverters ?
2) What's PG encoder ? Why its used ?

Click to expand...

Read ...
2 Introduction and Component Names and
6 Application of Encoder (PG)

PG SPEED CONTROL CARD PG-X2
Varispeed G5/F7/G7 OPTION CARD INSTRUCTIONS

**broken link removed**

---------- Post added at 23:07 ---------- Previous post was at 22:25 ----------

3) What's Z Pulse & Z Pulse Fault ?

Click to expand...

Read pages 1 and 2.

Electric Motor Feedback Devices
http://www.motor-solutions.com/datasheets/servo_motor_feedback_devices.pdf


Generally speaking : Quadrature Errors
are failures of the encoder to generate properly formatted quadrature signals.
Most typically, these are failures to create the proper 90° signal separation between
the A and B channel outputs, with a less than perfect stream of square waves.
Most controllers, when presented with a quadrature error, will report a drive fault or
encoder fault and then shut down.

specifically for PG card (Yaskawa) and Z-pulse errors
Read...
6 Troubleshooting
◆ Error Codes Displayed on the Drive Operator

YASKAWA AC Drive-Option Card
Line Driver Type PG Installation Manual
**broken link removed**

Z-phase Pulse Fall Detection
The motor turned one full rotation without the Z pulse being detected.

Z-phase Noise Fault Detection
The Z pulse is out of phase by more than 5 degrees for the number of times
specified in parameter F1-17.

4) What's node setup & hence node setup error ?

Click to expand...

The objective of this Technical Note is to demonstrate how to set up
a network with 2 or more nodes over either Mechatrolink or DeviceNet.

YASKAWA TECHNICAL NOTE
MOTION PRODUCT AND ENGINEERING GROUP
Subject: MP940 Network Setup via MotionWorks +

**broken link removed**

---------- Post added at 10:50 ---------- Previous post was at 10:19 ----------

5) How to check the ratios between voltage & frequency if V/f setting is not operating as expected ?

Click to expand...

Read this very careful....

**broken link removed**

Read pages 152....
Parameter group E : Motor settings

http://www.scrcontrols.com/docs/TM.V1000.01.pdf

thanks a lot ......... ufffffff . yeah it was massive , sorry about that KAK111

some questions are remaining and needed to be answer by KAK .... from 6 to 8

6, 7 ) How to Check ( periodic checks )

Click to expand...

**broken link removed**

http://www.ctiautomation.net/PDF/Articles/How-To-Maintain-A-VFD.pdf

8) How to check/measure the drive temperature ?

Click to expand...

-thermal camera
-non-contact infrared thermometer

how to place either the thermal camera or non contact infrared thermometer inside the drive ?

Thank you for you interest Yaskawa product if you have any more question or concern please contact our Yaskawa technical support department by clicking the following link **broken link removed**