Popular Searches:
Q : How to fix occasional communication disconnections on GD350-5RG-4 VFDs driving asynchronous motors?
A: GD350-5RG-4
Application condition: Ordinary speed regulation of asynchronous motor.
Fault phenomenon: More than 20 GD350 products have a power between 4kW-90kW. During debugging, it was found that some VFDs occasionally communicate normally and occasionally disconnect.
How to solve it?
Reason analysis:
Check that the communication related parameters of the VFD are set correctly. The communication between the upper computer and a single VFD is normal. Check the wiring for all VFDs using a set of chrysanthemum connections. Check that the terminal resistance is normal and that the communication line shielding layer is grounded properly.
Solution:
Change more than 20 VFDs to three sets of chrysanthemum shaped connections.
Improvement effect:
Communication is normal and there are no further disconnections.
More Resources
Services
Learn about INVT’s global after-sales policies, service processes, and technical support commitment.
Learn More
Downloads
Get product catalogs, manuals, drawings, software, certificates, and more.
Download Now
Training Videos
Learn product knowledge, operation guides, and application technologies through online training videos.
Learn More
Inquiry
TOP
Popular Searches:
Repair Progress Tracking | Identity Verification
To protect your repair information, please verify using the mobile number reserved on the service order.
Verify with the reserved mobile number
Verify
SMS Verification Code *
If you cannot receive the code, please contact the after-sales hotline. 400-700-9997
Contact INVT
Get in touch with INVT. Our team will get back to you shortly.
Full Name *
Company Name *
Email Address *
Phone Number *
Country *
City
Inquiry Type *
Product Category *
Select the product you're interested in.
-
Industrial Automation
-
Network Power
-
PV & ESS
-
e-Mobility
Your Message / Requirements *
I have read and agree to INVT Privacy Policy and Terms of Use
Captcha *
