PWM CONNECTION TO SERVO DRIVER

Started by AMIT KAPOOR July 14, 2004
Hello Everyone
i have a doubt: i have yaskawa servo pack( driver) SGDF-A2CS  , my question is can i connect PWM o/p generated from PIC to driver speed control( analog voltage ) input directly....is it safe for the driver?.....pwm frequency is 15khz .. is this frequency ok?...
Please reply...
Thanx
Amit



Hello Everyone
i have a doubt: i have yaskawa servo pack( driver) SGDF-A2CS  , my question is can i connect PWM o/p generated from PIC to driver speed control( analog voltage ) input directly....is it safe for the driver?.....pwm frequency is 15khz .. is this frequency ok?...
Please reply...
Thanx
Amit



A PWM output (50-50 or locked anti-phase?) does not give you the analog voltage required to drive the servo amplifier. If it is an analog voltage you are after, you would need additional interface logic (including a DAC) to take your PWM and change it to an analog voltage.
Madhu
-----Original Message-----
From: AMIT KAPOOR [mailto:k...@yahoo.com]
Sent: Wednesday, July 14, 2004 7:52 AM
To: p...@yahoogroups.com
Subject: [piclist] PWM CONNECTION TO SERVO DRIVER

Hello Everyone
i have a doubt: i have yaskawa servo pack( driver) SGDF-A2CS  , my question is can i connect PWM o/p generated from PIC to driver speed control( analog voltage ) input directly....is it safe for the driver?.....pwm frequency is 15khz .. is this frequency ok?...
Please reply...
Thanx
Amit