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I have a Dyna Myte DM4500 vmc. The machine has a following system configuration: Power Supply QX084, CPU QX611-1, Video Board QX522, Input/Output boards QX531. This is a MELDAS 520AM system. LED's on QX084, QX611-1, QX522 light in green, but the machine is like dead. There isn't NC Ready, the monitor doesn't light on. I checked the Power Supply voltage - +12V, -12V, 5V and 24V and they are o.k. There isn't HSYNC, VSYNC and VIDEO to the monitor. Could somebody help me!
best regards
Lyuben
please share the led status on qx084, qx 611-1, qx531. how much is the battery voltage observed on qx084 ?
Hello navinbhas,
LED status is:
1. QX084 - LED1 (Power) lights in green, LED2 (AC Fail) and LED3 (BAT AL) don't lit.
2. QX611-1 - LED1(Watch Dog Alarm) lights in green; LED2 (Memory parity error) lights in green. Both light permanent, not flickering.
3. QX522 - LED1 (RUN) lights in green, LED2 (FBAL1) and LED3 (FBAL2) don't light. The machine has not Remote I/O and Spindle Encoder, so CSH41 is free (only 100Om resistor on the right side). CES11 is free too.
The Battery voltage is 2.9V.
Pay attention that LED1, LED2 from QX611-1 and LED1 from QX522 lights permanent. I read in Meldas maintenance Manual, that LED's must flickering in green. Is this a problem?
Hello navinbhas,
LED status is:
1. QX084 - LED1 (Power) lights in green, LED2 (AC Fail) and LED3 (BAT AL) don't lit.
2. QX611-1 - LED1(Watch Dog Alarm) lights in green; LED2 (Memory parity error) lights in green. Both light permanent, not flickering.
3. QX522 - LED1 (RUN) lights in green, LED2 (FBAL1) and LED3 (FBAL2) don't light. The machine has not Remote I/O and Spindle Encoder, so CSH41 is free (only 100Om resistor on the right side). CES11 is free too.
The Battery voltage is 2.9V.
Pay attention that LED1, LED2 from QX611-1 and LED1 from QX522 lights permanent. I read in Meldas maintenance Manual, that LED's must flickering in green. Is this a problem?
HI
Normally it should flicker, not permanent on. How about the LED status on QY201 and all the drive units.
Also remove the IO cards and then power on and check if the leds are flickering.
Hi
My machine configuration is without QY201. The machine has 9” CRT monochrome monitor and the CRT operation board /key switches/ is connected directly to connector CNZ14 from QX522 thru cable NZ14.
I tried to switch on the machine without I/O cards before, but it was the same situation.
What do you thing if I try to disconnect Main memory QX635 and PLC QX812.
As per the data I have, 9 in monochrome CRT should have operation board IO QY231. CSH41 of QX522 would be connected to QY231. QY231 would be connected to the operational board panel through CMD81, CMD82, CFD83. Please cross check once again.Quote:
Originally Posted by lubodm
How about the CRT input voltage from QX084 (CPA02). Is that okay ? How much is the voltage that your getting ?
Also please let me know the drive 7segment led status as this will confirm whether the communication from NC to drives are okay or not or if NC is malfunctioning or not
Hi, I have similar issues in my Mitsubishi.
QX084 AC power light is green(no issues)
.
Next QX 611-1 , 1and 2 led's are continually green. Not flickering.
At HV-65-M500-C BOARD K41 red led light is on.
This problem occurs after few minutes of machine starts. Then Bus Error $500024A4 showing on screen. Once off the machine then it's not turn on again.
After few hours starts ok. But same issues repeats. Please help me. Thanks in advance.