Who's Online Now
0 members (), 34 guests, and 0 robots.
Key: Admin, Global Mod, Mod
September
S M T W T F S
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30
Newest Members
Josephs, Javy89, Ropeguy67245, kywewa, Ingvar
10,040 Registered Users
Forum Statistics
Forums13
Topics7,385
Posts40,939
Members10,040
Most Online3,137
Apr 9th, 2026
Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
Joined: Sep 2014
Posts: 27
G
newbie
newbie
G Offline
Joined: Sep 2014
Posts: 27
Hi friends,

I have a unit schindler 3300AP MRL. Sudden lift stopped and unable to inspection or normal.

On the display is :-
-000****
_ ??--70

I tried reset 101, same results.
-> checked Menu 50, i have some errors list:-
1. E 001531, E 480072, E 471531.

Is this due to encoder issue?

Best regards.
Nick

Joined: Oct 2013
Posts: 197
member
member
Joined: Oct 2013
Posts: 197
70 is drive communication problem

Joined: Sep 2014
Posts: 27
G
newbie
newbie
G Offline
Joined: Sep 2014
Posts: 27
Hi.

Thanks for reply. By understanding in manual article, 70 is elevator recovery.

Joined: Oct 2013
Posts: 197
member
member
Joined: Oct 2013
Posts: 197
recovering from a fault , normally drive communication problem, disconnect vf plug try to reset the cpu reconnect vf

chek status menu 30 for drive communication or other communication problem

Joined: Sep 2014
Posts: 27
G
newbie
newbie
G Offline
Joined: Sep 2014
Posts: 27
Hi guys, sorry no reply back.

Here is the updated status for this 70 issue.
The lift at bottom floor, set Menu 10 2, 1 for open loop. Move the car inspection up for short distance, set back to 0, put back normal. The lift will run recovery and turn back to normal operation. It can run few times, after that sudden stopped and 70 is back.

For #NOTIME, did try disconnect wires all and put back. same issues.

Best regards

Joined: Sep 2014
Posts: 37
M
newbie
newbie
M Offline
Joined: Sep 2014
Posts: 37
1531 E_FC_ENCODER_PULSE_MISSING
Invalid signal from the drive motor encoder
C1:Encoder signal is faulty
A1:Check general wiring to the encoder
C2:Encoder signal is noisy
A2:Check encoder signals for right termination


0072 E_ELEVATOR_BACKUP_BAT_CAR_INSUFFICIENT_
CHARGE
The charge of the car backup battery (e.g. used to power the
car backup light) has fallen below the required minimum
level or wasn't able to get recharged to the required
minimum level after elevator mains power up.
C1:Battery connection missing or bad
A1:Check battery's connections
C2:Battery faulty (e.g. old)
A2:Replace battery
C3:Battery charging problem
A3:Check wiring to charging device. Check function of
charging device (charging voltage, fuses).

Last edited by misigun; 03/06/23 03:22 PM.
Joined: Oct 2013
Posts: 197
member
member
Joined: Oct 2013
Posts: 197
Originally Posted by Gnick
Hi guys, sorry no reply back.

Here is the updated status for this 70 issue.
The lift at bottom floor, set Menu 10 2, 1 for open loop. Move the car inspection up for short distance, set back to 0, put back normal. The lift will run recovery and turn back to normal operation. It can run few times, after that sudden stopped and 70 is back.

For #NOTIME, did try disconnect wires all and put back. same issues.

Best regards




fault # ?

menu 501

Joined: Sep 2014
Posts: 27
G
newbie
newbie
G Offline
Joined: Sep 2014
Posts: 27
Hi,

Errors same as before, 001531, 480072, 471531, 450072, 441531, 420072, 411531...so on.

Joined: Sep 2014
Posts: 27
G
newbie
newbie
G Offline
Joined: Sep 2014
Posts: 27
Hi misigun. thanks for information. i suspect is encoder issue. tried unplug and plug in, still same issue.

Joined: Oct 2013
Posts: 197
member
member
Joined: Oct 2013
Posts: 197
Originally Posted by Gnick
Hi,

Errors same as before, 001531, 480072, 471531, 450072, 441531, 420072, 411531...so on.



i'm a bit confused this is a US version ?

cause the error log should be 4 numbers and you said error 420072 ,411531, a 6 numbers errors ?

Last edited by NOTIME; 03/12/23 10:31 PM.
Joined: Oct 2011
Posts: 29
R
Sniper
Sniper
R Offline
Joined: Oct 2011
Posts: 29
Its error number 41 error code 1531
And error number 42 is error code 0072

Joined: Oct 2011
Posts: 29
R
Sniper
Sniper
R Offline
Joined: Oct 2011
Posts: 29
Change the backup battery
For safety it cuts the lift off if insufficient charge
For emergency, it relies on backup battery, so it cuts the lift off , so you can replace backup battery

Joined: Sep 2014
Posts: 170
Likes: 2
B
BRG Offline
member
member
B Offline
Joined: Sep 2014
Posts: 170
Likes: 2
Has this been fixed? I have had to change several of the drives. The 1351, may be an effect, not the cause. The 72 says it's been off and the batteries are discharged too low to run. I would clear the errors, menu 50 submenu 5 set it to 1. Then see what happens menu 50 submenu 1 will show the errors it has. If the unit is shut off and the batteries in the TSU are not unplugged, they will discharge and it will not run at all even on PEBO. I have had to sit a good set of batteries outside the LDU and use them. Traveler 11 is the door zone, unplug it and PEBO it up, Take the escape hatch loose and get a ladder in the car to get on top.

Last edited by BRG; 03/13/23 11:23 PM.
Joined: Oct 2013
Posts: 197
member
member
Joined: Oct 2013
Posts: 197
Originally Posted by NOTIME
Originally Posted by Gnick
Hi,

Errors same as before, 001531, 480072, 471531, 450072, 441531, 420072, 411531...so on.



i'm a bit confused this is a US version ?

cause the error log should be 4 numbers and you said error 420072 ,411531, a 6 numbers errors ?



Error 1531 : E_FC_ENCODER_PULSE_MISSINGInvalid signal from the drive motor encoder

Error 0072 : E_ELEVATOR_BACKUP_BAT_CAR_INSUFFICIENT_ CHARGEThe
charge of the car backup battery (for example used to power the car backup light)
has fallen below the required minimum level or was not able to get recharged to the required minimum level after elevator mains power up.

Question:
on normal display is showing any status ?

try : command 102 - 1 next 101 (Reset Command) if car run is a bad encoder :
car with status 74 will not run, will need new batteries even if you have 24v the system know batteries has no amps to run safe

Joined: Sep 2014
Posts: 27
G
newbie
newbie
G Offline
Joined: Sep 2014
Posts: 27
Hi many thanks for reply guys.

still unsolve yet.

1. to ryansnipes, thanks for information.
2. to ryansnipes, thanks again this information. I share a photo. Do you mean by this two batteries? https://ibb.co/0VD49Qr
3. to BRG, thanks for information. Do you mean by this two batteries? https://ibb.co/0VD49Qr
(currently i checked batteries faulty.)
4. to NOTIME, thanks again friend.
- this i need to look into it.
- on normal display is showing any status ? > if reset, or 101-1 reset or even power supply off/on. immediately shows ??- 70
- tried this 102-1, make the car moved little bit. set back to 0. The lift is normal operation but only 1-2 rides, immediately stop and ??-70.

Best regards

Joined: Sep 2014
Posts: 170
Likes: 2
B
BRG Offline
member
member
B Offline
Joined: Sep 2014
Posts: 170
Likes: 2
I don't know of any batteries in the LDU. I can make a guess this is not in the U.S.A.? Australia? I would say we need more pictures.

Last edited by BRG; 03/15/23 12:29 AM.
Joined: Apr 2010
Posts: 220
S
bangyourheadhere
bangyourheadhere
S Offline
Joined: Apr 2010
Posts: 220
Batteries are critical. I have had units that someone thought they could put any budget battery in there create constant issues. The drive has a board called the CANIVF which is a royal pain. It is what talks to the rest of the system. Schindler doesn't sell it. They will repair your drive for a price worthy of grabbing your ankles. If the unit boots after pulling the VF plug, chances are this is your issue. But...bad batteries will cause the SEMNA board to constantly trip. So make sure the batteries in the TSU (mounted box in hatch adj to top floor) are good and of the same Amphours rating.

Joined: Sep 2014
Posts: 27
G
newbie
newbie
G Offline
Joined: Sep 2014
Posts: 27
Hi. BRG. Will take some photos update.

Hi. Smitty, Thanks for information. Will check it out on this batteries & update back.

Best Regards

Joined: Dec 2011
Posts: 317
B
Mechanic
Mechanic
B Offline
Joined: Dec 2011
Posts: 317
How often should the batteries be replaced?

Joined: Apr 2023
Posts: 7
J
stranger
stranger
J Offline
Joined: Apr 2023
Posts: 7
The batteries need to have a full charge if they don’t you will get the 72. Even if it still reads close to but still under it can throw that fault. You should be able to run on inspection even with the batteries dead just won’t run on normal till they’re replaced. How many snow flakes come up when you try to run? If you changed the drive I would change the encoder or maybe do a learn trip and see if the problem goes away. Learn trip is a 116

Page 1 of 2 1 2

Link Copied to Clipboard
Photo Gallery
service tool laptop
service tool laptop
by dunkdadrunk, February 4
rip orona
rip orona
by epic_ecodisc, January 7
what controller is this?!
what controller is this?!
by Alex_ELMAN, December 4
HW PM
HW PM
by Chris, January 13
PECCO PH5000 Overspeed Governor
PECCO PH5000 Overspeed Governor
by stankap, September 24
Drive sheave
Drive sheave
by jkh, October 10
The best helper.
The best helper.
by Adrian, August 8
Powered by UBB.threads™ PHP Forum Software 8.0.0
(Release build 20240826)
Responsive Width:

PHP: 8.3.33 Page Time: 0.041s Queries: 55 (0.019s) Memory: 3.1180 MB (Peak: 3.5928 MB) Data Comp: Off Server Time: 2026-09-20 23:42:52 UTC
Valid HTML 5 and Valid CSS