Electronics Forum | Wed Jul 21 14:57:57 EDT 2004 | Steve
I have some servo driver boards that intermittantly fail and would like some information on getting them repaired. Do any of the members know of a 3rd party repair facility that can repair/exchange these boards? As not having a schematic for these so
Electronics Forum | Tue Jan 24 16:35:16 EST 2017 | siltron
Hi everyone, We bought a used Juki KE a few months ago. Installed it at the beginning of this year, but have some problems with the Z and ROT servos. As soon as the machine is powered on, the ALM04 red led turns on on some of the Z and ROT drivers.
Electronics Forum | Fri Mar 08 05:44:40 EST 2019 | bukas
are you sure #1 and #6 are interchangeable? if I remember correctly there is a catch with those motors, like there are 2 groups, group 1 being #1 #3 #5 and group 2 being #2 #4 and #6. maybe try getting it back and swapping cables at drivers for head
Electronics Forum | Fri Aug 30 15:44:51 EDT 2019 | valentink
I will try outline Theta and Z-axis servo issues, we were facing last time. Story behind. Our 750 is used seldom and last time after switching it on initialization procedure ends with T axis of right head: Servo alarm. Opening front cover of 750 two
Electronics Forum | Thu Sep 05 14:44:41 EDT 2019 | jbaez1
Looking for Pack Driver or driver unit 630 119 8361 from HSP4797 (Universal, Sanyo or Hitachi): Tag information: Pack Driver Model: D2890B S ver. 0.16 W ver. 0.00 Made in Japan
Electronics Forum | Wed Nov 30 20:38:31 EST 2005 | CEB
You can contact Hitachi High Technologies America, they are still supporting these machines (972-615-9102). It also sounds like you could have a servo problem.
Electronics Forum | Sun Mar 31 07:43:32 EDT 2013 | lkavan
Thank you very much, you are an angel, DOS software works with these drivers! But some servos still shaking and I cannot tune it by decreasing the gain or autotuning :-( Problem is with driver, when I change it servo works well. All drivers have the
Electronics Forum | Tue Oct 14 07:38:29 EDT 2014 | dilogic
Z axis drivers are located in co-salled LP servo bay. It is 19" rack mounted in lower left part of the machine. Head1 z axis driver is in slot 4 and head2 driver is in slot 6
Electronics Forum | Thu Nov 03 13:28:48 EDT 2016 | jimmyboz
If there are no errors, check main relay contacts, it is common that one contact is not closing.
Electronics Forum | Wed Sep 08 11:30:49 EDT 2021 | kumarb
We can vouch that UTSOURCE was excellent in assisting in the repair of some obscure farm equipment for a local farmer. Their Hitachi (original) LCD display driver was blown on a number of PCBs but was able to source the replacements through this port
winsouce.jpg)
