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Thread: New $50 FVD
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27th July 2022, 08:19 PM #1
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New $50 FVD
Came across these 1HP uber-budget level VFDs on Aliexpress.
https://www.aliexpress.com/item/1005002629014794.html?ug_edm_item_id=1005002629014794&pdp_npi=2%40dis%21AUD%21AU%20%2463.03%21AU%20%2435.30%21%21%21%21%21%40212a641616588370353111001d5400%21%21edm&edm_click_module=alg_product_l1r2_5501784330&creative_img_ind=1&tracelog=rowan&rowan_id1=aeug_edm_22516_1_en_US_2022-07-26&rowan_msg_id=r.loCOWS_22516_$3be317889ed04fd486ce7353df97da6a&ck=in_edm_other
Screen Shot 2022-07-27 at 5.14.30 pm.jpg
Limits:
Only goes to 99 Hz
Only has V/F control - ie no vector mode
Limited number of external control connections
I wonder if it has the ability to set a current limit?
Still - for $50 - if you no 3P but have a small budget level 3P machine and can convert its motor connections to ∆ 240V this could be a goes.
I'm tempted to but one just to have a play with it.
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27th July 2022, 08:31 PM #2
The Laird
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Bob, try and get a hold of the manual before you buy. I helped someone recently who had a cheap VFD and it had a total of 12 parameters that you could change. It had no way to enter motor details or change current limits. It was barely a VFD. Very basic settings only.
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27th July 2022, 09:03 PM #3
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Good idea. I've been caught like that before with a used VFD. It had no "coast to stop" function and max deceleration was 3s which was too quick for teh motor I ws using. BANG - that was teh end of it.
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