Stahl Folder Ti52 - Error 18

Hi collegues,
I work with PCB repair mainly Heidelberg Postpress, the Ti52 after some years normally presents the ERROR 18 and the owner needs to change the main board, SGM-3, I and other colleagues from other companies have been investigating the cause of this problem but nobody had success, we checked all components and was not find any damaged component.
I'd like to know if someone had information about this hardware error... at the same I am ready to help collegues with issues about Postpress PCB repair..

 

Hi sir;

Normally in Stahl TI52 Present error:

In the Services menu, press the F2 function button. The Mainten./Error log menu appears.

Open the error Log.

Let me know, if this fix it

 

Hi Chock,

Probably you are referring to new version similar to MCT... this error occurs in old version, that one with 7 segments display

 

Blessing
Details for Display with Seven segments display is attached

 

Hi Chock,

Sorry for the late answer, I was not at the Lab, I was in the costumer testing a board. Tomorrow I will send a copy of technical description about the problem which explains about the missing 24V in relay K1 on the board.

Regards

Toshiro

 

Hi Chock,

The error message in the technical description is:

According to the description is caused by signal check-back from K2, it means missing 24V or wrong configuration in service mode.
The configuration is ok and the missing 24V is not because the relay is not actuated, there is a kind of watchdog circuit that monitors other circuits from the board and in case of failure will not allow the release of 24V, will not active the relay K2. The challenge is to discover which components in the board would be responsible for this failure.



Regards

Toshiro

 

ok Toshiro , where is the schematic appearing the coil for K2??
Since you must know, some device like limit switch, or button can be interrupted the
coil for K2, and by that reason does Not goes ON.

 

Unfortunately, there is no schematic for the board, this relay is on the board, but when I in Heidelberg I saw this error many times and the machine only come back to run when you change the board, I and other colleagues from other companies that work with PCB repair still didn't find the cause in the board, I don't believe is damaged component, I guess can be project error because after some years all boards presents this error and is necessary to replace the board

regards

Toshiro

 

Hi I am ex Heidelberg, they cannot be repaired due to the problem part is obsolete. (k2 is a myth)I can use these for other issues so I am willing to buy any old/ damaged ones with error 18 for £80 english plus postage thanks.
I do have both sgm2 and sgm 3 if anyone needs them but these are new and expensive

Thanks

Adam

 

Hi Adam I am ExHeidelberg too, I worked as a field service engineer and now I work repairing PCB from Graphic machines, this kind of error until today nobody as able to solve. I have other colleagues that work with PCB repair and they also didn't solve this problem, I follow the whole circuit and didn't find damaged component, seems to be some project error, similar to any value close to the limit in good conditions and after some years these values are changing and the board doesn't work anymore, but if you test all components will not find anyone damaged.

regards,

Toshiro

 

Good evening, I had the same problem on the motherboard of the heidelberg ti36 machine, sgm-3 DCT 500 control panel and I tell you my experience hoping to be useful to you. After several tests and attempts to solve the problem, even by calling the parent company, I got into my head to want to solve the problem and with my pride I was able to solve it by studying the functioning of the logic well. Then I intervened on the RP2 POSITIONED ON THE SGM-3 CARD I HAVE ALL THE CONTACTS WITH LIQUID SPRAY FOR CONTACTS. Even today I no longer see the annoying error.


P35: Port 1 Outputs P35 indicates Port 1 output status Table 5 Safety settings # Function Operation Key Combin. Variable Displayed
P60 Drive start key delay Adjustable with 0 - 13 secs.
P61 K2 release time Adjustable mit RP2 Adjuster- K2 Delayed release (sec) (large display) +
P60: Drive Start Delay period (only when A02=0) Entering the Drive Start Delay period for Station 1 (Settings: 0 to 13.0 sec.) ensures that the paper runs smoothly after starting if there is any paper still inside the machine. (Station 1: approx. 0.6 sec.)
P61: Display of delayed release for the K2 guard (only when A02=0) Adjuster for setting the K2 delayed release (Measuring time = 0 to 10 sec.). Adjust with the RP2 poti on the SGM-3 board. Default setting = approx. 2.5 sec.