Hello,
TM1 year 2001
The machine was turned off fine on Friday and today shows a 292 320 Power Supply Fault. Looking at the power supply inside it shows an E (under voltage fault). I disconnected the 320VDC output that feeds the drives to isolate the problem and attached my voltmeter to see what was happening. At turn on I get 293 VDC and starts dropping almost immediately, it takes about 30 seconds to drop to 230VDC which triggers the E under voltage fault and keeps dropping all the way down to 0 volts.
I will be checking the capacitors and rectifier bridge tomorrow, but if someone has had this problem before and can share please do so, I