by pupdogg » Thu Jul 12, 2018 1:14 am
Hi @weerasak, sorry for my delayed response but as per your suggestion, I bought new DB25 to RJ45 connectors and routed ALM pin to BKO instead and now it works like charm. Thank you for that!!!
It’s odd that DMM servodrive does not follow the industry standard (as you mentioned) for outputting a HIGH ALM signal and making at low on an actual ALARM...I will double check Fanuc, Yaskawa and Mitsubishi manual to verify that is in fact the industry standard. It could be that we need an external PLC for Safety Circuit, which is in fact true in our lasers case which uses ABB servodrives with custom direct harmonic motors.
Paul Davis
5x10' CNC Router
UCCNC, ETH300, UB1, DMM Servos