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#35953 - 09/19/23 07:55 PM Schindler 3300 display reboot loop  
Joined: Oct 2019
Posts: 11
Dino31 Offline
stranger
Dino31  Offline
stranger

Joined: Oct 2019
Posts: 11
Hi all,
I have an issue with the MRL 3300 lift, when we have power loss then when the power is restored the display start to reboot loop for many minutes ans some times for many hours to finally startup.
I checked 24v it's ok (26.5v) and all connectors seems to be ok.
Is it software or hardware issue?
Did anyone had a similar problem and resolved it.
Thanks a lot for your help.

Regards,
Dino

#35963 - 09/20/23 07:16 AM Re: Schindler 3300 display reboot loop [Re: Dino31]  
Joined: May 2021
Posts: 45
Fehlerteufel Offline
newbie
Fehlerteufel  Offline
newbie

Joined: May 2021
Posts: 45
What does the display show when booting.

What does the error stack show.

Possible causes:
defective SCPU
defective SIM card
CANBus problem (frequency converter, SDIC)
software update failed
...

#35965 - 09/20/23 08:10 AM Re: Schindler 3300 display reboot loop [Re: Fehlerteufel]  
Joined: Oct 2019
Posts: 11
Dino31 Offline
stranger
Dino31  Offline
stranger

Joined: Oct 2019
Posts: 11
It shows nothing. when pressing reset just the display light up then reboot after 10 seconds.
the 24v led is on and when pressing reset bbus led light on then off which id normal.

#35968 - 09/20/23 09:24 AM Re: Schindler 3300 display reboot loop [Re: Dino31]  
Joined: Aug 2019
Posts: 43
BOJAN Offline
newbie
BOJAN  Offline
newbie

Joined: Aug 2019
Posts: 43
remove the SCPU and wipe the contacts and insert back into the slot.

#35974 - 09/20/23 05:09 PM Re: Schindler 3300 display reboot loop [Re: BOJAN]  
Joined: Oct 2019
Posts: 11
Dino31 Offline
stranger
Dino31  Offline
stranger

Joined: Oct 2019
Posts: 11
Originally Posted by BOJAN
remove the SCPU and wipe the contacts and insert back into the slot.

I did it but same result. The display continue in reboot loop.
Is there any other things to check?

#35987 - 09/21/23 07:51 AM Re: Schindler 3300 display reboot loop [Re: Dino31]  
Joined: Aug 2019
Posts: 43
BOJAN Offline
newbie
BOJAN  Offline
newbie

Joined: Aug 2019
Posts: 43
replace SCPU

#35989 - 09/21/23 07:23 PM Re: Schindler 3300 display reboot loop [Re: BOJAN]  
Joined: Oct 2019
Posts: 11
Dino31 Offline
stranger
Dino31  Offline
stranger

Joined: Oct 2019
Posts: 11
My SCPU is v2.1 boot loader 15.11.09
Need I to replace it with the same boot loader or any boot loader can do the job.
It's a plug and play or I should to do something else ?
Thank's for you help

#36004 - 09/25/23 06:50 AM Re: Schindler 3300 display reboot loop [Re: Dino31]  
Joined: Aug 2019
Posts: 43
BOJAN Offline
newbie
BOJAN  Offline
newbie

Joined: Aug 2019
Posts: 43
SCPU
On the SCPU the complete configuration is stored in the
EEPROM. Because there is no possibility to do an
electronic backup, the whole configuration has to be done
after the replacement. Try to read out as much as possible
of the existing configuration.
Before replacement:
 Read out the trip counter and travel time (CF=11 or HMI
menu 60 > 601, 602) and note the values in the elevator
log book.
 Read out the car load cell calibration data (see section
5.4.2)
– CF=96, PA=1, PA=2 and PA=3
– CF=08, PA=01 and PA=08
 Read the encoder direction and phase sequence
– CF=16, PA=14 and 15
 The following parameters need to be read out only if the
corresponding items are available in the system
– Parking floor, penthouse? → CF=02
– Key switches in car? → CF=05/55, CF=41, CF=17
– PIN code? → CF=41, PA=1
– JDE or JAB on the LOP? → CF=40, L=n, PA=21
– LCUX on floors? → CF=40, L=n

SCPU After replacement:
 If necessary chance the encoder direction and phase
sequence (CF=16, PA=14 and 15)
 Perform a learning travel (see section 4.9.2)
 If available enter car load cell data (CF=08, PA=01 and
PA=08; CF=97) (see section 5.4.2)
 Perform a LOP counting (CF=00, LE=00) (see
section 5.4.5)
 Enter the parameters which you have read out before
 Do the mandatory configurations (see section 5.2)
 Set the time and date (CF=04)
 Perform the ETM(A) configuration (see section 5.4.24)
 If necessary do the configuration for the other options

#36030 - 09/28/23 06:06 PM Re: Schindler 3300 display reboot loop [Re: Dino31]  
Joined: Oct 2019
Posts: 11
Dino31 Offline
stranger
Dino31  Offline
stranger

Joined: Oct 2019
Posts: 11
Thank you very much for the help.
I'll give the update after replace the scpu.

#36506 - 01/05/24 07:17 AM Re: Schindler 3300 display reboot loop [Re: Dino31]  
Joined: Oct 2019
Posts: 11
Dino31 Offline
stranger
Dino31  Offline
stranger

Joined: Oct 2019
Posts: 11
Hi All,
I replaced the scpu and now it boots and works but i have a problem.
We have dual elevators and before the scpu issue when I call the elevator from lop the nearest elevator will be called but now the elvator with new scpu will be called Even if it is far from the floor. the second elevator (existing scpu) will work only if the first elevators (new scpu) is in movement.
I think it's priority parameter or something like that.
So is there a parameter to set to reactivate dual working as the nearest elevator will be called first.

Thank you
Dino


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