The Otolift Type 87 is a stairlift system designed for use on staircases. It features a closed-loop control system for controlling the synchronous motor and DC brake. The lift is equipped with an on-board charging circuit for charging the batteries. This model includes a buzzer on the PCB and a LED in the armrest to report failures to the user, and a display on the PCB for reporting failures to the mechanic or installer.
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TYPE 87
1.1 Basics
1.2 Need-to-know locations on the PCB
4
4
2.2 Safety inputs 6
2.5 Outputs 8
Dipswitches 9
4.1 Need to know before programming 10
Interconnections PCB 12
6.3 Transformer /on board charging-circuit 13
6.6 Lift will not be used for a longer period 14
7. Remotes / transmitters and receivers
7.1 Programming the 2-channel remotes into the 2-channel receiver
15
15
7.2 Reverse logic up/down of 2 channel remote 15
7.3 Adjusting the dipswitches of the 1-channel transmitter and receiver 16
7.4 and
Powered 17
8.3 Warning for older type of PCB’s 18 much 18
9.2 on
9.4 21
9.8
Working description Over speed governor 23 folding 24 proximity 25
10. Error-handling for the user of the chairlift 26
10.2 Logic of the LED in the armrest 26
Attachments.
86900 PCB eng
86900 S1 eng
86900 CW1 eng
86900 CW2 eng
86900 SS eng
86900 FSSv6 eng
86900 KS eng
86900 KS logic eng
86900 FKSv3 eng
86900 LD eng
87900 error eng
86900 EH eng
86900 PS eng.
87900 SB eng.
=> drawing of lay-out PCB and info
=> schematics main PCB 86900
=> connection of wiring, page 1
=> connection of wiring, page 2
=> connection of wiring powered sliding hinge
=> schematic powered sliding hinge PCB ssp 042 v6
=> connection of wiring powered folding hinge
=> logic of LED’s powered folding hinge PCB ssp 007/008 v3
=> schematic powered folding hinge PCB ssp 007/008 v3
=> connection of wiring charging-point
=> logic of display-errors
=> logic LED armrest and beeper
=> connection of proximity switch (sensor)
=> connection and voltages of servicebox
3
1.1 Basics
- Closed loop control for controlling the synchronous motor and DC brake.
- On board charging-circuit for charging the batteries (= 2x12V/7Ah)
- The lift is equipped with a buzzer on the PCB and a LED in the armrest for failure report to the user.
- The PCB has a display for failure report to the mechanic or installer.
- Errorlog for backwards failure handling.
1.2 Need-to-know locations
PCBnumber
Service- connector
X13
Dipswitches
LED 1, 2 & 3
4
Display
LED 4
Fuse-
375 mA
Bypassconnectors
X15 and X3b
1.3 Names and locations
Control armrest (switch left-right)
Swivelseat switch
Armrest-switch incl. LED
Overspeed governor (catch)
& rotation monitor unit
Safety drive-unit
Receiver(s)
Endswitch
Charging contact
Safety switch chairframe
Safety switches footrest
Safety switch bottom of chairframe
1.4 Definition left/right
When the left or right side of the chair is mentioned, it is always seen from the position of the user when he or she is seated on the chairlift.
Keep this in mind, when parts should be ordered, or when you ‘read’ the error or errorlog.
In the upper drawing the control armrest is mounted in the right armrest.
When a left or right rail is mentioned, it is always seen from the bottom of the staircase.
On the frontpage-photo you see a left rail.
1.5 software version
The version of the software which has been loaded into the PCB, will be shown when you connect the
PCB to the battery. In case of software C38 the display will show C, 3, 8, C, 3, 8, C, 3, 8 .
5
2.1 Controls
If one of these controls is activated, and the safety contacts are not operated, the chairlift will start to move in the controlled direction.
Control input
Control armrest right
Control armrest left
2-channel receiver (Remote right)
2-channel receiver (Remote up)
(NO)
(NO)
(NO)
(NO)
X2a-
X2a-
X8-
X8-
1,3
2,3
3,4
5,6
Arm1
Arm1
Remote
Remote
2.2 Safety inputs
If one of these safety devices is controlled the lift can not be moved in any direction.
X2b-
1,2
Arm 2
Swivelseat switch (NC)
1-channel receiver/hinge PCBssp 008/sensor
(NC)
Overspeed governor (catch) (NC)
2.3 Sensitive edges safety inputs
Sensitive edges safety inputs right side
X2c-
X7-
1,2
Seat
3,4 & 5,6
X9b-
1,2
Extra
Catch
If one of these safety devices are controlled, the lift can not move in the right direction.
It is still possible for the lift to move in the left direction.
Endswitch right
Safety drive unit right
Safety footrest right
Safety chairframe right
(NC)
(NC)
(NC)
(NC)
X3a-
X4-
X5-
X6-
1,2
1,2
1,2
1,2
Endswitch
Drive
Foot
Frame
6
Sensitive edges safety inputs left side
If one of these safety devices are controlled, the lift can not move in the left direction.
It is still possible for the lift to move in the right direction.
Endswitch left
Safety drive unit left
Safety footrest left
Safety chairframe left
(NC)
(NC)
(NC)
(NC)
X3a-
X4-
X5-
3,4
3,4
3,4
Endswitch
Drive
Foot
X6-
3,4
Frame
Sensitive edge safety bottom
The chairlift also has a safety edge at the bottom side of the chair. (safety bottom of chairlift).
If this safety device is controlled, the lift can not move in the downwards direction.
It is still possible for the lift to move in the upwards direction.
These switches are always interconnected in series with the wiring of the safety chairframe, only in the direction where the safety is “needed”.
For example, on a chairlift mounted on the right of the staircase,(seen from bottom to top), the safety bottom switches are interconnected in series in the left direction.
On a chairlift mounted on the left of the staircase,(seen from bottom to top), the safety bottom switches are interconnected in series in the right direction.
2.3 Other inputs
Rotation monitor unit
Transformer
This switch is triggered by a moving part, which is mounted on the overspeed governor mechanism, which drives over the rail.
This contact is checked for an alternating value while moving
Rotation monitor unit (rmu) is connected to X9a. (rmu)
24 DC/35VA is used for powering the charge-circuitry on main PCB connected
1,2
(charge))
Service box
Bypass-connectors
Multipurpose tool for:
- Programming the chairlift, with self chosen programmable speeds.
- Moving the lift in combination with bypass-connectors, when a defect is active.
- Read out error-log.
The service box should be connected to x13 (service)
Use for interconnection of safety-contacts.
Can only be used in combination with service box.
The bypass-connector should be connected to x15 (bypass) and
X3b (limit) and is activated (hold to run) by the C-button)
7
2.4 Outputs
Supply output +/-24Vdc 1
Supply output +/-24Vdc 2
Logic switched output 1
Logic switched output 2
LED on armrest 6V/20mA
Beeper (buzzer) on PCB
1-segment display
4A current limited 22~29V output, for powering the powered sliding hinge. Through charge-points. (wiring connected to x10
-2,3
)
22~29V output for powering the powered folding hinge board.
Max 2A (externally fused) (wiring connected to x11
-1,2
)
If the lift has reached an endpoint and has stopped, this output will be active as long as the lift is operated. (X11-
3,4
)
When dipswitch 2 = off, output active on upper and lower endpoint.
When dipswitch 2 = on, output only active on upper endpoint.
(If setting dipswitch 9 is correct)
This will become active when the lift is operated (left/right) (X12-
1,2
)
When dipswitch 2 = off, output active only when swivel switch and armrest-contact are closed and control is operated.
When dipswitch 2 = on, output always active when control is operated.
See function of LED in the armrest ( chapter 10.2) connected )
See function of beeper (chapter 10.3)
Shows failure (report) to installer/mechanic
8
The dipswitches on the circuit board have their own logic functions.
Dipswitch 1= on => The rotation monitor unit is monitored on its functionality.
If the rotation monitor (RMU) does not give an alternating signal, during 30 cm of moving the lift, the lift stops.
The lift will drive further by re-controlling it.
If the dipswitch is off and a rotation monitor unit is connected, the
PCB will see this as an incorrect combination. Every time when the
Dipswitch 2 = on signal from the RMU alternates the chair is stopped.
=> Use for future options. (functionality is already implemented)
If the lift has reached an endpoint and has stopped, the switched logic output X11 will be active as long as the lift is operated.
When dipswitch 2 = off, output active on upper and lower endpoint.
When dipswitch 2 = on, output only active on upper endpoint.
(If setting dipswitch 9 is correct)
If the lift is operated, the switched logic output X12 will be active as long as the lift is operated.
When dipswitch 2 = off, output active only when swivel switch and armrest-contact are closed and control is operated.
When dipswitch 2 = on, output always active when control is operated.
Dipswitch 3 = on => When the lift has not seen the voltage of the transformer for 1 or 8 hours the lift will go into sleepmode. (low current consumption)
When the dipswitch is on, the sleepmode will be activated after 8 hours instead of the standard 1 hour.
Dipswitch 4 = on
Dipswitch 5 = on
Dipswitch 6 = on
=>
=>
When an extra charge or stoppoint has been programmed, the lift will stop on this point when it is controlled by a remote-control.
When an extra charge or stoppoint has been programmed, the lift will stop on this point when it is controlled by the armrest-control.
Dipswitch 7 = on
Dipswitch 8 = on
=> The beeper will give a continuous alternating alarm signal (1 Hz), when the lift has not seen the voltage of the transformer for a period of time after controlling the lift.
When the dipswitch is on, the delay to this alarm is 2 minutes instead of the standard 15 seconds.
=> For future developments. Functionality until now not implemented.
Dipswitch 9 = on
=> The standard lift (130 kg) has its own maximum torch settings.
In future developments, we can give more torch to the motor by switching this dipswitch on.
Never adjust this dipswitch in the standard 130 kg application.
=> Depending if a rail is mounted on the left or right side of a staircase the logic of the remote might have to be reversed.
When the dipswitch is on, the remote-control is adjusted for right rail.
When the dipswitch is in the standard off position the remote-control is adjusted for a left rail.
9
4.1 Need to know before programming
The chairlift must always be programmed, when moving to the right. (seen from user position)
Thus a lift which is mounted on the left side of the stairs, must be programmed from the endpoint at the top till the endpoint of the bottom, and a lift which is mounted on the right side of the stairs, must be programmed from endpoint of the bottom till the endpoint at the top.
Be careful, when using the servicebox in bypassmode the lift only stops when an endswitch is operated. (Bypass see chapter 5.1 page 12)
When an overspeed governor is mounted on the chairlift, and the bypass-connector is connected and activated, the lift will not stop when the overspeed governor contact (catch) opens,.
Please keep this in mind.
Servicebox control
S = Service => switch upwards = on / down = off
T = => switch upwards = on / down = off
R move switch operated = on
= move Right => switch operated = on
C = Hold to Run Button Bypass Connector
Before programming, always check to make sure the lift stops at the endswitches.
Service + Left: the lift must stop when safety-cap endswitch left is controlled.
Service + Right: the lift must stop when safety-cap endswitch right is controlled.
The speeds must be set before starting programming the lift.
The position of the potentiometer is related to the speed.
With the switch below the potentiometers (1 2) you can choose the potentiometer-speed .
To see the actual set (potentiometer) speed, move the lift by Service and Left or Right.
During movement in service mode you can adjust the speeds.
Do not adjust the potentiometers during programming procedure.
10
4.2 Programming the chairlift
Only start programming the lift, when the lift is operating OK (without bypass-connector.)
The hinge should stand in the hinge out position.
Keep the transformer connected to the mains-voltage
Start programming procedure when ‘potentiometer’ speed is set.
Programming procedure:
2 Move the chairlift to the left by operating Left (servicebox), until it stopped against the buffer
5 Choose speed 1 or 2 (switch 1 2) speed should be set before programming procedure
8
Keep Right operated till point 10.
If necessary, switch over the speed by operating switch 1 2.
(Max of 35 times of switch over in speed possible)
9 If the chairlift has stopped against the other buffer, the system beeps 5 times.
Right
12 Remove the connector from the service box if there are no additional charging points.
If an extra charge point has been installed on the rail, the chair can be programmed in for this.
Programming procedure for extra charge-point(s)
14
15
Move the chairlift to the extra charging point.
Park the chairlift exactly in the middle of the charging point.
16 Leave the system on Service and switch on Teach mode, the system will beep once.
17 Switch off Teach.
19 Remove the plug from the service box.
If a second extra charging point has been installed, this can be programmed into the chairlift as well.
Repeat points 13 through 19, the system will beep twice at point 16. (3th charging-point 3 times...etc.)
In total 5 extra charging points/stoppoints can be added.
Extra charging-points can not be deleted.
When a incorrect charging-point has been programmed in, start at point 1.
You can choose for which control the chairlift should stop on the extra charging point(s)
Dipswitch 4 = on, the lift will stop when operated on by the remote-control.
Dipswitch 5 = on, the lift will stop when operated on the armrest.
Dipswitch 4 + 5 = on, the lift will stop when operated by the remote-control as well as on the armrest.
Activate alarm when controlled by remote
Alarm during movement when controlled by remote can activated or de-activated by controlling L+R
1sec on the servicebox. (Service and/ or Teach should be in off position)
This functionality is added in software version c40 or higher.
11
5.1 Bypass-connectors
When you want to move an incomplete or defect lift you need the Bypass-connectors.
They are attached to the service-box.
Connect the 4 pole connector to x15 (bypass) and the 2-pole to x3b (limit)
With these connectors you will be able to override all safety-contacts, except for the endswitches.
Activation of override is done, by holding the red C button on the service box.
When you disconnect the Bypass, do not forget to put jumper back to X3b (see chapter 5.2)
Programming can not be done when this connector is connected.
When connected and activated, the lift moves with a maximum of 5cm/s. (C38 software or higher)
When bypass is activated, you will not be able to move the lift, by “normal” control.
(armrest or remote). When you try to do this, the display will show (8-8-8-8-11).
(See headline 8888 error mechanic-needed-beep).
If the chair is functioning properly, you can also use the service box without the bypass-connector.
The bypass connector also overrides the overspeed governor safety-contact. (Catch)
5.2 Interconnections on the PCB
Some connectors are not used in the type 87 application.
In this case we use jumpers to make the interconnection.
X3b is standard interconnected by a jumper.
When this interconnection is forgotten the display will show the error 8-8-8-8-y and 2 LED’s will be off. (see chapter 9.2, LED’s on the PCB)
When no 1 channel receiver, folding rail PCB and/or SENSOR is connected, 2 extra connections should be made on X7, by using jumpers. See foto.
5.3 Logic of pin-numbers
All pcb connectors are named with an x number.
The x is always positioned at the side of connection 1 / pin-number 1
In the upper foto, the interconnections on X7 are made on pin 3 & 4 and 5 & 6.
12
If the chairlift is on, and the batteries are being charged, the LED on the armrest is on continuously.
When the chair is on and the batteries are NOT being charged the LED will blink with a frequency of
1 Hz.
6.1 Charging-points
The voltage for charging the batteries is interconnected through the charging contacts.
A detail drawing of the connections of the charging-points is attached. (drawing 86900 LD eng)
6.2 No-charging-alarm
When the lift is not moving and is not receiving any charging voltage, the lift will start beeping after
15 seconds or 2 minutes.
Frequency of the beep = 1Hz
If the lift gives the no-charging-alarm you can stop this alarm by controlling left or right for 0,5 second. (remote or armrest).
When the lift has been used, and the batteries are still not charged after it stopped, the alarm will sound again.
The time to no-charging-alarm can be set by dipswitch 6.
6.3 Transformer / on board charging-circuit
The main PCB has its own charging-circuit on board.
Because of this we can charge more accurate, which results in a longer lifetime of the batteries.
The maximum charge-current is 1,1A .
The transformer of the type 87 is NOT a battery-charger. You can not and may not use this transformer for charging batteries directly.
Only use this transformer in combination with the 86900 or 09000 (jade) PCB.
Visa versa, you can not use a standard battery-charger, to charge the batteries when a type 86 main
PCB is connected.
The transformer must be fused with a 1,6 Ampere Fuse (glass-fuse 5x20)
NEVER apply a fuse with a higher value.
Always use the special 24V DC transformer which is delivered by Otto Ooms BV.
13
6.4 Battery-fuse
For protection of all electronics a main-fuse is put in series with the batteries.
The fuse-holder is placed as an interconnection between the batteries
In case of standard 130 kg lift a 20A blade fuse is needed.
6.5 Sleepmode
When the lift has not been charged for 1 or 8 hours it will go into a sleepmode.
In sleepmode, the current-consumption is approximately 10 mA.
If the lift is in the sleepmode, you can simply wake it up by controlling the armrest control left or right. After waking up the lift can be used directly.
The time till sleepmode can be set by dipswitch 3.
6.6 Lift will not be used for a longer period.
When, for example, a user goes on vacation, we advise to keep the transformer connected to the mains voltage.
In this situation the charging-circuit will keep the batteries in good condition.
Only switch off the armrest button.
14
The chairlift has a separated receiver (PCB) built in for remote-control.
In case of a powered sliding hinge 2 extra remotes and 1 receiver is used for controlling the hinge in and out.
Also an extra 1-channel transmitter (on the hinge) and 1-channel receiver (in the chairlift) is applied for hinge-is-down command.
Before using the remote you have to teach them in and/or adjust the dipswitches.
The battery-voltages has to be connected, when you want to teach them in.
7.1 Teaching the 2-channel remotes into a 2-channel receiver
1.
2.
Open the cover of the receiver-box.
Operate the switch on the receiver once. (LED lights up).
3. Operate within 30 seconds the up or down switch of the remote which should be programmed in. The LED will go off.
(Battery on remote should be connected.)
4. The up and down signal of the remote now will be ‘seen’ by the receiver.
5. Repeat step 2 and 3 for the next remote.
(programming up to 16 remotes is possible.)
LED
Switch
Dipswitches
Switch up/down
2-channel receiver 2-channel remote
• For deleting the transmitters, keep switch on the receiver operated, until the LED dims. (5 seconds)
• With the dipswitches, the send- and receive frequency can be changed.
• The dipswitches on the remotes and the receiver have to be adjusted in the same position.
(always both on or both off)
7.2 Reverse logic up/down of 2 channel remote
Depending on whether a rail is mounted at the left or right side of a staircase the logic (up/down) of the remote might have to be reversed.
When dipswitch 9 = on, the remote-control is adjusted for right rail.
When dipswitch 9 = off, the remote-control is adjusted for left rail. (standard)
15
7.3 Adjusting the dipswitches of the 1-channel transmitter and receiver
To make the 1-channel receiver work with the 1-channel transmitter you have to adjust the dipswitches of both in the same way.
Dipswitches
1-channel receiver 1-channel transmitter
The receiver and transmitter always have the same dipswitch settings, when they come from the manufacturer.
We recommend to adjust the dipswitch always to prevent that a signal from another hinge can give a false hinge-is-down command.
7.4 Types and type numbers
2-channel remote = SKE2MLV
2-channel receiver
1-channel receiver
= EKE2MLV
1-channel transmitter = SFB1LV
= EFB1LV
16
At this moment we have 2 different powered hinges.
The powered sliding hinge needs less space then the powered folding hinge when folded in.
8.1 Powered sliding hinge
The powered sliding hinge uses extra remote-controls for moving the hinge up/down.
A 1-channel transmitter and receiver are used for ‘hinge is down’-command.
The transmitter is battery-buffered via 2x 9V recharge-able batteries on the hinge PCB.
The hinge can only be controlled when a chair is on the charge-point.
It uses the battery of the chair as powersupply.
A detail drawing of the connections of the sliding hinge is attached. (drawing 86900 SS eng)
8.2 Powered folding hinge
The folding hinge is controlled by an extra PCB in the chairlift itself.
When you control the lift on the armrest or on a remote, the extra PCB in the chair (ssp 008 v3) commands the PCB under the rail (ssp 007 v3) to fold the rail out.
When the hinge has folded out, the PCB near the hinge commands the PCB in the lift that it is safe to drive.
If the chair is stopped on a charge-point the hinge will fold in automatically.
A detail drawing of the connections of the folding hinge is attached. (drawing 86900 KS eng)
The working of the folding rail is described in chapter 9.9
Note that the transformer is not connected directly to the charge-point, but is (and should be) interconnected through the PCB ssp 007.
17
8.3 Warning for older type of hinge PCB’s.
Some of the older type hinge PCB’s are not compatible to the type 87, and some of type 87 parts are not backward-compatible to older types of lifts.
PCB’s which you can/ may use in combination with the 86900 PCB and transformer are;
- Sliding hinge ssp 042 V6 (mounted in the cover of the hinge) (used since March 2007)
- Folding hinge ssp 007 V3 (mounted under the rail) (used since March 2008)
- Folding hinge ssp 008 V3 (mounted in the chair) (used since March 2008)
8.4 Sliding hinge uses too much current. (friction in application.)
To prevent melting of the 5A fuse , when the hinge-application gives too much friction, we added electronics which measure the output current on x10 pin 3.
When the current consumption of the hinge becomes too high, the electronics will switch off the power for approximately 1 sec.
This can be repeated 10 times. Then the PCB shows error 8-8-8-8-J and all output voltages will be switched off.
You can reset this error by controlling the lift on the armrest for 1 second.
18
9.1 Diagnostic display
A display on the PCB shows the actual error. More detail info of this display errors is attached to this document. (attachment 87900 error eng).
The display can show the following errors.
S w itc h in a rm re s t is in o ff p o s itio n
S w itc h in a rm re s t is o n (m a in s a fe ty -lin e O K )
S w iv e ls e a t-s w itc h is o p e ra te d
E x tra c o n ta c t is n o t in te rc o n n e c te d (b y ju m p e rs , 1 -c h a n n e l re c e iv e r o r s s p 0 0 8 v 3 a n d /o r S E N S O R )
C u rre n t c o n s u m p tio n o n x 1 0 -3 h in g e r th a n 1 0 0 m A
L ift is o p e ra te d o n tw o p la c e s
L ift d id n o t c h a rg e fo r 1 o r 8 h o u rs . (d e p e n d in g s e ttin g d ip s w itc h )
L ift w a s in s le e p m o d e
M e c h a n ic -n e e d e d -e rro r. (1 till 1 2 g iv e s fa s t b e e p ).
S a fe ty d riv e u n it rig h t c o n tro lle d
S a fe ty d riv e u n it le ft c o n tro lle d
S a fe ty fo o tre s t rig h t c o n tro lle d
S a fe ty fo o tre s t le ft c o n tro lle d
S a fe ty fra m e rig h t (o r u n d e rs id e ra il le ft) c o n tro lle d
S a fe ty fra m e le ft (o r u n d e rs id e ra il rig h t) c o n tro lle d
L ift is o n a n e n d p o in t a n d th e e n d s w itc h in o p p o s ite d ire c tio n is o p e ra te d .
E n d s w itc h rig h t is c o n tro lle d
E n d s w itc h le ft is c o n tro lle d
H ig h lo a d "o v e rc u rre n t" (to o m u c h lo a d o n th e c h a irlift)
L o w b a tte ry -v o lta g e
T e m p e ra tu re P C B to o h ig h
R o ta tio n m o n ito r u n it d e fe c t (o v e rs p e e d g o v e rn e r). (d ip s w itc h 1 s e ttin g O K ? )
E rro r 1 (h ) T o o h ig h v o lta g e o n X 1 0 -1 . (w irin g fa u lt o f tra n s fo rm e r/c h a rg e p o in t)
E rro r 2 (o ) O v e rv o lta g e o n b a tte rie s d u rin g c h a rg in g o r m o v e m e n t.
E rro r 3 (c ) R e la y e rro r o r w irin g b ra k e n o t O K o r c o n n e c te d (a ls o s e e e rro r 1 5 a n d 1 6 )
E rro r 4 (n ) O th e r v o lta g e s a re in te rc o n n e c te d in s a fe ty lin e
E rro r 5 (N ) In te rc o n n e c tio n b e tw e e n s a fe ty lin e le ft a n d rig h t
E rro r 6 (U ) P C B d e fe c t (H S L o r H S R in te rn a lly s h o rtc irc u it)
E rro r 7 (u ) P C B d e fe c t (H S L o r H S R d o n o t fu n c tio n )
E rro r 8 (y ) s m d fu s e , o v e rs p e e d g o v e rn e r (c a tc h ) o r in p u t lim it in te rc o n n e c tio n n o t O K
E rro r 9 (q ) O n e o f th e c o n ta c ts o n X 7 d o n o t w o rk s y n c h ro n is e d (d e fe c t c o n ta c t? )
E rro r 1 0 (e ) D e fe c t e n c o d e r. (n o t a p p lie d /u s e d in 8 6 m o d e l)
E rro r 1 1 (1 1 ) B y p a s s -c o n n e c to r is s till c o n n e c te d (a n d a c tiv e ).
E rro r 1 2 (re v e rs e t) B a tte rie s d id n o t re a c h m a x b a tte rie v o lta g e (a fte r 3 x C ).
E rro r 1 3 ( J ) 1 0 x h ig h o u tp u t c u rre n t x 1 0 -3
E rro r 1 4 ( j) In te rn a l d e fe c t o n P C B
E rro r 1 5 ( r
) R e la y d o e s n o t b e c o m e a c tiv e . (C 3 8 s o ftw a re o r h ig h e r)
E rro r 1 6 ( r) W irin g b ra k e n o t c o n n e c te d .
(C 3 8 s o ftw a re o r h ig h e r)
If for example the display shows 2, this means that the swivelseat-switch is controlled, or that the wiring to this switch is defect.
In combination with the detail drawing of the wiring (attachment 86900 CW eng) it should be easy to solve the problem, if the problem is related to the wiring.
An 8888x error is shown as a 4x blinking eight and then failure code .
All 8888x errors will generate a fast beep (5Hz).
Exception for error 8888J (error 13) This one does not generate the fast beep.
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9.2 LED’s on the PCB
There are 4 LED’s mounted on the PCB.
The 3 LED’s left bellow are mounted for indication of the status of the 375 mA SMD fuse, contact of overspeed governor (catch) and limitswitch/jumper. (LED 1, 2 & 3)
The LED near the display shows the status of the PCB. (LED 4)
LED 1,2 & 3 on = Fuse 375 mA (F1) safetyline & contact overspeed governor (catch) and limitswitch (limit) OK.
LED 1,2 & 3 off = Fuse 375 mA (F1) safetyline defect / sleepmode / shortcircuit x10-3 to ground.
LED 2 & 3 off = Limitswitch (limit) is operated / jumper as interconnection not connected.
LED 2 off = Contact overspeed governor (catch) is operated.
LED 4 on
LED 4 off
LED 4 flashes
= OK
= 5A fuse defect/ no battery-voltage
= Chairlift is in sleepmode
9.3 Error-log
The PCB stores the errors in its memory.
By using the buttons left and right on the servicebox you can read out the error-log.
Facts & functions of error-log
- Control right
- Control left
=> read the stored errors backwards
=> start at latest stored error
- Control left for 10 sec. => delete error-log
- Every 24 hours (when not in sleepmode) the log stores a underscore
- Errors are only stored when the lift is controlled by armrest left/right or remote up/down.
- When the lift has not moved, the same error will stored once.
- When the lift has moved, the same error can be stored more then once.
- Maximum of 20 errors or days can be stored.
- The end of the error-log is shown as a minus
Please note that the underscore is not real time. The system only stores the underscore when the system has been active for 24 hours.
Example 1
The lift has been active for more then 20 days. (today it is Monday)
A user complains that the lift has stopped several times during movement on Wednesday and Friday.
When the error-log has read out the display could show:
Note that the first error you read is the most recent one.
_ _ _ 2 2 2 _ _ 2 2 2 2_ _ _ _ _ _ _ _ - or
_ _ 2 2 2 _ _ 2 2 2 2_ _ _ _ _ _ _ _ _-
Display-error 2 means that the swivelseat-switch was operated during operating the lift.
In this case it is obvious that the problem has to be found in the wiring or the adjustment of the switch.
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Example 2
There was a problem, but the user is not able to inform you.
When you read the error log you see the following errors.
5 2 _ _ 5 _ 5_ F _ _ 6 7 _ _ 0 _ _ 0 F-
Display-error 5 means that the lift was controlled on 2 locations at the same time.
Display-error 2 means that the swivelseat-switch was operated during control.
Display-error 0 means that the armrest-switch was operated during control.
Display-error F means that the safety chairframe was controlled during control
6 and 7 show to you that the lift had entered sleepmode, because the batteries were not charged for 1 hour.
In this case you should check if the control on the armrest goes back in middle position when released or if one switches on the remote or in the armrest is function properly.
When for example the remote is not mounted properly, it could happen that a button stays controlled when it is released.
Also check the safety cap frame and safety switch frame left.
The error-log shows that 4 or 5 and probably 10 or 11 days ago this was a reason why the chairlift was stopped.
Does the cap move back when it is controlled?
Note that also the user can have caused this, because there was a object on the stairs.
Display error 2 and 0 could be a mistake in operating by the costumer.
To be sure, you can check the function of the armrest-switch and swivelseat-switch.
The 6 en 7 indicates that the chairlift had entered the sleepmode.
Was there a power-failure on the 230~net (mains voltage) or …..?
To be sure check the wiring of the charge-point.
Please note that the error-log makes and sees no difference in failure or mistake in controlling by the user.
It only is a tool to help you find the reason, why the chairlift did not work.
9.4 8888x error. (mechanic-needed-beep).
If there is a problem, which really needs the attention of a mechanic, the lift will generate a fast beep.
In most cases it will be hear-able 10 seconds after releasing the control left/right.
The display will show in this case an 8888x error.
See drawing 87900 error eng for the explanation of these errors.
When the lift has given an 8888x error, and the problem is solved, you can reset the lift by controlling the lift left or right for 10 seconds.
See chapter 9.6
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9.5 fuse safety-line
A 375 mA SMD fuse is used as a safety-fuse for all the switches in the safetyline.
The fuse melts when a wire or contact from the safety-line has a short-circuit to (chassis) ground.
When the fuse is broken the display shows 8888y, the 3 LED’s at the left bottom are off, and the LED near the display should be on.
NOTE; that a short-circuit from x10-3 or x11-1 to ground during movement can give the same info as a defect fuse.
First disconnect x10 or x11, then reset to see if the problem is solved
When you exchange the fuse, first disconnect the battery-voltage and the voltage of the transformer.
For exchanging you should have a special tool. (pincet)
You can order this at Otto Ooms BV
Beware that the applied fuse is not a “easy-to-get” type of fuse.
Please keep a number of the smd 375 mA fuses as a spare-part
9.6 Reset
When the chairlift has given an 8888x error, and the problem is solved you can reset the chairlift by operating the lift left or right for 10 seconds.
When the fast beep has stopped during operating left/right the error is resetted and solved.
If you do not reset, the error stays active and visible on the display.
9.7 Reposition
When you move the chairlift off the rail, and put it on again later, there is a big chance that the profile has shifted.
In this case you do not have to teach in the profile again.
To do a reposition, follow step 1 to 5.
1. Drive the chairlift in the direction of the endpoint, which it does not reach, until it stops
2.
3.
4. automatically (software endpoint).
Switch off the armrest-switch. (LED is off).
Operate the chairlift 15 seconds by operating armrest left/right towards the endpoint which not can be reached.
Keep control armrest left/right operated and switch on the armrest-switch.
Still keep armrest left/right operated.
.
The chairlift will move towards the endpoint and will stop on the endswitch.
When the control left/right was released before it stopped at the endpoint, then start at step 2
again.
5. The profile should be correct know, the chairlift is now repositioned.
If step1 to 5 is not done correct, the chairlift will not be repositioned.
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9.8 Working description Over speed Governor (OSG) Type 87
When the over speed governor is installed on the lift, dipswitch 1 needs to be in on position.
(If the dipswitch is off and the Count hammer moves, the lift will give ERROR P in the display.)
Working description:
The Drive wheel is friction driven and rotates when the lift moves over the rail.
This wheel triggers the count-hammer 4 times per rotation.
The triggering is monitored by the optical switch. (RMU)
If this trigger does not occur for approximately 30cm of travel, the lift will stop.
The display on the main PCB will show error P.
(when re-controlling the error will be resetted and the movement of the lift can be continued)
At nominal speed the hammer (balanced by a metal spring) is returned to its original position, so it can be triggered again. When the drive wheel gets overspeed the hammer hooks into this wheel.
When this happens the gripper moves into the rail.
Before gripping into rail the catch-contact is already activated.
The catch-contact breaks the safety-line, so further movement by motor is prevented.
The display on the main PCB will shows 8888y when the catch contact is activated.
1. Count hammer
2. Gripper
3. Drive wheel
6. optical switch
(RMU)
X9a
5. Catch contact
(switch) X9b
4. Set/Reset
Catch
1. Count-hammer moves in optical switch and interrupts the switch every movement.
2. Gripper grips the rail when there is overspeed.
3. Drive wheel is friction driven and makes the count hammer move.
4. Set/Reset Catch moves the Catch into the rail if there is over speed, but is also used for manually resetting the Catch.
5. When the Catch-contact is operated (contact open), the lift will stop and give the error 8888 Y in the display and LED2 on the main PCB will off.
(Switch is connected to x9b)
6. The RMU is an optical switch which is interrupted by the count-hammer.
Interrupted signal is logic ‘0’ non- interrupted is logic ‘1’.
The movement of the count-hammer will result in a pulsed signal.
If the there is no pulse for 30cm of movement the lift will stop.
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9.9 Working description folding rail
The folding rail PCB (ssp 008v3) in the chair has a set/reset memory,
Current consumption (ca 60 mA) gives a reset.
A pulse from the folding rail PCB (ssp 007v3) sets the memory.
The red led on the PCB is on when the memory is set.(chair switched on)
The orange LED goes off when there is a current-consumption.
When the memory is inactive the display will show error 3. (only when armrest switch is on, and the swivel-seat is in the correct and locked position.)
When the chair is operated, and display error 3 is visible, the main PCB powers the connection on
X1-4. (the green led on ssp 008v3 becomes active)
This voltage powers a relay. This relay switches the voltage off X3-3 (A3) and powers X3-1 (A1).
The folding rail will fold down as long as this relay is active.
(the orange LED on the rail PCB 007 goes off) (the red LED on the 007 stays/becomes active)
When the folding rail has folded out completely, the 2 endswitches down will be operated.
The 2 green LED’s on the PCB ssp 007v3 will go off. (ESdwn and ESdwn2 operated).
By operating both endswitches at the same time, the folding rail PCB will make a ½ sec. pulse(24V) to the folding rail PCB in the chair (though X3-3 / A3), which will set the memory .
(display will show 1 => ready to move).
This pulse is made visible by the red LED on rail PCB 007 v3. (it will go off ½ a second).
When the chair is positioned on a charging point and the chair is not operated, the PCB ssp 008v3 checks if it is connected to the ssp 007v3 (rail).
When the connection is active for 4 seconds, it powers connection X3-3 (A3) and the hinge will fold up (in). (orange LED on rail PCB 007v3 will be active).
The endswitch fold up is shown by the green LED in the middle. (ESup on PCB 007).
See drawing 86900 FKS for the logic of all LED’s
Points of attention.
1. When operating the chair is stopped during folding down the rail, the folding rail PCB will fold up the rail immediately.
2. The time between set and reset the memory, must be ca 3 sec. When the folding rail has started folding up (in) and the chair is operated, the rail will start to fold out immediately.
Then it is possible that the folding rail PCB 008 in the chair was not able to set the
memory.
Logic endswitches and connection of charging contacts
ES down 1 (ESdwn) NC = Endswitch down.(out)
NO = pulse to the chair (together with making contact of ESdwn2).
ES down 2 (ESdwn2) NC = Endswitch down. (out)
NO = pulse to the chair (together with making contact of ESdwn1).
ES up (ESup) NC = end switch up (in)
Chargepoint (1) (red) = power supply folding down / charging voltage switched through ssp 007v3
Chargepoint (2) (black) = mass (chassisground)
Chargepoint (3) (grey) = power supply folding up /and signal for set pulse.
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9.10 Working description proximity switch (sensor)
All Chairlifts with a flat backward curve with a radius of 315 mm will have an inductive proximity switch in the counter pressure unit.
The inductive proximity switch is added to the chair to prevent damages. Without the inductive proximity switch the toothed wheel can damage the rail when it hits the rail.
The inductive proximity switch switches the chair off, when the distance between the lowest tube and the switch is bigger than 4 mm. When the distance becomes less than 4 mm, the inductive proximity switch switches the chair back on.
When the proximity-switch ‘senses / sees’ no metal the display on the PCB will show error 3
If the chairlift is not mounted on the rail it will not work.
The proximity switch ‘senses’ no metal.
In this case, you can operate the lift by using the servicebox and bypass-connector.
Remove the bypass-connector before programming the lift.
6 mm
Bolt for inductive proximity switch
Inductive proximity switch
The distance between the front of the switch and the massive is 6 mm. With the bolt the distance can be adjusted.
PAY ATTENTION.
1. Do not turn/assemble the bolt to tight. The electronics in the switch can easily be damaged.
2. Riding the chair onto the rail must be done with care to prevent the switch from being damaged.
3.
4.
Always test, after the chairlift is assembled, if the switch does not hit the rail when there is a load on the chair.
Special attention should be given to the distance between the lowest tube and the switch at the backward turn. At this point the distance is the smallest.
Check if the switch is working properly by for example pushing the chair slightly backward.
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10.1 Operating the chairlift
The chairlift will not start to move directly when operated , it will start to drive after 1 second of operating.
Before start to drive a 0,5 second beep will be heard. (start-to-move-signal)
When the chairlift is stopped on a endpoint a 0,25 second beep will be heard. (endpoint-reachedsignal)
If the chairlift is stopped on a other location on the rail no endpoint-reached-signal will be heard
When you reverse the control direction, there will be a 2 sec delay between stopping in and moving in the opposite direction.
10.2 Logic of the LED in the armrest
The LED can show the following logic.
• The Led is on continuously
The chairlift is switched on and the batteries will be charged. (lift is positioned on charging contacts)
• The Led is blinking once every sec. The chairlift is switched on and the batteries will not
• The Led is blinking fast (5hz)
The chairlift is switched off by the PCB, because the battery power is low. Control the chairlift downstairs and stop it on a charging point.
• The Led is blinking once every 3 sec. The chairlift is switched off by the PCB, because there was no alternating signal form the rmu for 30 cm.
• The Led goes off when controlled
The chairlift is also controlled on a other location
• The Led off continuously
The chairlift is switched off.
If the LED is off, this could have several causes.
By operating the lift for 2 seconds, the LED will blink a number of times after the control is released.
If in this case a fast beep will be heard, till 10 seconds after releasing the control, a mechanic is needed to solve the problem. (mechanic-needed-beep)
• The Led blinks 0 times.
The keyswitch in the armrest is switched off.
• The Led blinks 1 time
• The Led blinks 2 times
The armrest-switch is switched off.
The switch of the swivel seat is still operated. Check the position of the seat and
• The Led blinks 3 times
The chair is switched off because the powered hinge is not in the correct position. (sensor is off)
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10.3 Logic of the beeper
When the LED in the armrest is on and the chairlift will not move when controlled, the beeper will be heard 1 second after releasing the control.
In this case one of the sensitive edges is controlled
The number of beeps gives the location of the controlled sensitive edge.
The location of the controlled sensitive edge is at the same side as the controlled direction.
• When 2 beeps are heard the safety cap of the drive-unit is controlled.
• When 3 beeps are heard the safety-plate of the footplate is controlled.
• When 4 beeps are heard the safety-cap of the chairframe is controlled.
(also check bottom of chairframe)
• When 5 beeps are heard the safety-cap of the endswitch is controlled.
This 5 beeps are only given when the chair is positioned on a endpoint.
Exception to the mentioned logic
There is one exception to this logic.
When the lift beeps one time in every 3 seconds the lift is switch off because of an internal overtemperature.
In this case wait 15 minutes to try to move the lift again.
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86900 PCB eng
86900 S1 eng
86900 CW1 eng
86900 CW2 eng
86900 SS eng
86900 FSSv6 eng
=> drawing of lay-out PCB and info
=> schematics main PCB 86900
=> connection of wiring, page 1
=> connection of wiring, page 2
=> connection of wiring powered sliding hinge
=> schematic powered sliding hinge PCB ssp 042 v6
86900 KS eng => connection of wiring powered folding hinge
86900 KS logic eng => logic of LED’s powered folding hinge PCB ssp 007/008 v3
86900 FKSv3 eng => schematic powered folding hinge PCB ssp 007/008 v3
86900 LD eng
87900 error eng
86900 EH eng
86900 PS eng.
87900 SB eng.
=> connection of wiring charging-point
=> logic of display-errors
=> logic LED armrest and beeper
2x
=> connection of proximity switch (sensor)
=> servicebox
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Closed-loop control
On-board charging circuit
Buzzer and LED for failure reporting
Display for failure reporting
Error-log
The chairlift has several safety features, including a swivelseat switch, an armrest switch, an overspeed governor, an endswitch, safety drive units, safety footrests, and a safety chairframe.
To program the chairlift, you will need to use a service box and follow the steps outlined in the manual. The chairlift must be programmed while moving to the right, seen from the user's position.
The display on the PCB shows various error codes that can indicate a problem with the chairlift. Refer to the manual for a detailed explanation of the error codes.
To reset the chairlift after an 8888X error, you must operate the lift left or right for 10 seconds. When the fast beep stops, the error is reset.
How to install chairlift endpoints?
Is it possible to program the Otolift Type 87 without the device box?
Programming the Otolift Type 87 typically requires the service box, as described in the manual. Alternative programming methods without it are not specified.
What happens when the safety drive unit on the right side is controlled?
When the safety drive unit on the right side is controlled, the chairlift's movement is restricted to the left direction only.
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