Who's Online Now
0 registered members (), 11 guests, and 0 spiders.
Key: Admin, Global Mod, Mod
March
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
31
Newest Members
Prairieelevator, Robot Rob, Montkone, Jevans, Clayshooter
8395 Registered Users
Forum Statistics
Forums13
Topics6,468
Posts36,656
Members8,395
Most Online117
Jan 16th, 2020
Previous Thread
Next Thread
Print Thread
#24960 - 10/11/18 02:45 PM Tac20/HD98 door op slamming door open and closed  
Joined: Sep 2016
Posts: 40
Chainring Offline
newbie
Chainring  Offline
newbie

Joined: Sep 2016
Posts: 40
Texas
I’ve got a Tac20 with HD98 door operator, and it appears to be deteriorating in terms of slowing the door down at final open and close. Door bangs shut with no final slow down and slam dunks into a harsh transition to open slow in the last couple inches before full open. Open slow transition is harsh enough to de-clutch the hall door at times. Naturally, no User Interface Tool on the controller or door operator.

Can one add the factory UIT to the controller and operator?

I’m not sure whether to suspect the main board in the operator or the module on the end of the Door Op motor as a potential problem. Any experienced input?

I need to get an HD98 manual and see if there are any checks I can do in the absence of the UIT.

Thanks!


2nd generation elevator man.
#24961 - 10/11/18 04:53 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Apr 2017
Posts: 96
UpandDown2321 Offline
journeyman
UpandDown2321  Offline
journeyman

Joined: Apr 2017
Posts: 96
In my expirience the UIT for the door operator is interchangeable but the controller UIT is job specific. Possibly mechanical slippage causing the encoder count to go off? There are also hex head bolts that I have noticed have a tendency to loosen up over time.

#24962 - 10/11/18 04:55 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Sep 2016
Posts: 40
Chainring Offline
newbie
Chainring  Offline
newbie

Joined: Sep 2016
Posts: 40
Texas
You know, I haven’t watched it for Belt slipping. That’s a good idea to check. I appreciate the tip.


2nd generation elevator man.
#24963 - 10/11/18 05:01 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Apr 2017
Posts: 96
UpandDown2321 Offline
journeyman
UpandDown2321  Offline
journeyman

Joined: Apr 2017
Posts: 96
Also if this model has brushes in the door motor...I have seen some at half wear give problems

#24966 - 10/11/18 08:32 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Dec 2015
Posts: 1,529
Indirtwetrust Offline
ElevatorPractitioner
Indirtwetrust  Offline
ElevatorPractitioner

Joined: Dec 2015
Posts: 1,529
Local 18
to put a UIT on the controller you will have to to the factory and get new software. You can put a UIT on the door operator if it is one of the newer PA boards (6300HL1 is the UIT part number). But an HD98 should be the older PY or even older FX boards. These older boards will act like this when they get old where you can’t get it to slowdown. I’m not really sure where you can go from here without IMS though, can’t do a scan or make adjustments. Do make sure it has the correct encoder though and use a meter to verify it works. The older boards get the big black optical encoder, the newer PA boards get the small digital encoder.

#24974 - 10/12/18 10:28 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Dec 2010
Posts: 566
elmcannic Offline
addict
elmcannic  Offline
addict

Joined: Dec 2010
Posts: 566
S. Central Utah
Also check the door operator linkage at the drive arm(s) at the operator and where the small arm attaches to the door. That stupid allen head machine bolt has a way of backing itself out to cause what you’re describing. Same with the set screw on the motor shaft, but you’d get encoder faults most likely.

I see UpandDown hit these issues...oops.

#24978 - 10/13/18 03:27 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Sep 2016
Posts: 40
Chainring Offline
newbie
Chainring  Offline
newbie

Joined: Sep 2016
Posts: 40
Texas
I have found that linkage bolt loose on other jobs, will definitely check that!


2nd generation elevator man.
#24988 - 10/14/18 10:28 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Mar 2015
Posts: 80
Whadafack Offline
journeyman
Whadafack  Offline
journeyman

Joined: Mar 2015
Posts: 80
Tac 20 should have a py3 board with the large black encoder. Board is probably shot. Good luck

#25003 - 10/16/18 03:47 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Sep 2016
Posts: 40
Chainring Offline
newbie
Chainring  Offline
newbie

Joined: Sep 2016
Posts: 40
Texas
Went back yesterday and it only did it a couple times in the open direction in 30 minutes of running it. Yesterday was a cold day here, and cool in the hoistway.

The previous visit it exhibited the problem at both floors, open and close, and about 97% of the time - and it was a hot day and hot in the hoistway. Seems like there may be a temperature sensitivity, there..

Belts weren’t slipping, linkage right, brushes show hardly any wear. I’ll keep an eye on it.


2nd generation elevator man.
#25038 - 10/20/18 04:16 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: May 2012
Posts: 194
Len Offline
member
Len  Offline
member

Joined: May 2012
Posts: 194
.......common problem is the bearing on the sheave drive arm plate either goes bad or the bolt that attaches the arm looses up or is broken.excessive play will be seen on opening/closing cycles..slamming.....

#25508 - 12/31/18 01:19 AM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Oct 2012
Posts: 262
Philly Offline
enthusiast
Philly  Offline
enthusiast

Joined: Oct 2012
Posts: 262
Without ims your screwed

#25509 - 12/31/18 03:41 AM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: May 2015
Posts: 71
TC7 Offline
journeyman
TC7  Offline
journeyman

Joined: May 2015
Posts: 71
In my opinion it is very likely that door stroke is not set properly. I see this all the time, stroke not set right, guys try to use electronic adjustments to compensate. It may work okay for a while, then a few years down the road it’s necessary to tweak parameters. If door stroke is mechanically set right you can damn near use default parameters. Hard to explain step by step to get it perfect, but TKE or Dover manual for any vintage HD operator will explain stroke adjustment.

The other possibility is that belts were never loosened when operator was new. What I mean is the factory sent out all HD operators, the belts are always WAY to tight. They need to be as loose as possible to barely keep traction on reversal. Knowing this sometimes people incorrectly increase torque settings to compensate for tight belts. Then belts loosen/stretch, or idler arm bearings starts to go out also loosening belts and now you got slamming doors.

As far as pick up rollers slipping out of clutch, score a cross hatch pattern/ or vertical lines in the face of the clutch closing vane with pocket knife . This is maintenance thing I do. Hold closing hall door being careful not to break the beam, if hall door slips out of clutch, start gouging the face of the closing vane.

#25514 - 12/31/18 11:38 PM Re: Tac20/HD98 door op slamming door open and closed [Re: Chainring]  
Joined: Dec 2015
Posts: 1,529
Indirtwetrust Offline
ElevatorPractitioner
Indirtwetrust  Offline
ElevatorPractitioner

Joined: Dec 2015
Posts: 1,529
Local 18
For the doors coming uncoupled, I’ve had really good luck replacing or even doubling up the spring steel plates in those old clutches.

Last edited by Indirtwetrust; 12/31/18 11:39 PM.

Photo Gallery
PECCO PH5000 Overspeed Governor
Drive sheave
The best helper.
Rotary Oildraulic
Old Otis badge.
Brakes,Coil,Rotor
KONE MX10 repair tool kit
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.111s Queries: 15 (0.074s) Memory: 2.7435 MB (Peak: 2.9693 MB) Zlib disabled. Server Time: 2024-03-29 08:32:20 UTC