Hi swoop

this machine using SW80 for main contactor and DC88 as contact forward and reverse motor.
Symptom 1. when KSI on, brake off, led status 1207 is blink normaly, after brake on (release) suddenly status led change to 3-2.
Check voltage across motor drive > 18 V.
Check contactor using input direct from batter 24V are still working ( measure by meter) still contact.
I'm curious that there are short cable on motor or contactor is weak to full contact.

Thank you