What is the different application between AVY4221-EBL BR4 and AVY4221-KBL AC4-0 of SIEI inverter in elevator industry?

As everyone knows that inverter is widely used for elevators or escalators, and there are many different inverter brands, such as Fuji, ABB, YASKAWA, Mitsubishi, Schneider, SIEI, and so on. Today, we are discussing what is the difference between ‘AVY4221-EBL BR4‘ and ‘AVY4221-KBL AC4-0‘ of SIEI inverter.
AVY4221-EBL BR4‘ is used for gearless host, which is synchronous.
‘AVY4221-KBL AC4-0’ is used for geared host, and which is asynchronous.

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If you want to order SIEI inverter from ElevatorVip.com, please provide some information at your jobsite to us, such as model, host type (gearless, or geared), etc., and then we will help you to select the right model. Other questions are also asking us. Thank you!

 

The Functions of Switching Power Supply in Control Cabinet of Elevator

First let me show you where is the Switching Power Supply used in Control Cabinet, which is a real case from jobsite of our customer in Istanbul, Turkey. Let us see the picture as below:

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The model of Switching Power Supply for Elevator is ‘HF150W-SDR-24B‘, besides ‘HF150W-SDR-26A‘ is available also (Learn more, please check here), which is part of elevator system, and converts an AC unstable power supply into a stable DC power supply, at the same time it can be used for protection the PCD board in control cabinet of elevator GCIOB 360.QB / GCIOB 360.QC / GCIOB 360.QD / GCIOB 360.QF ID.NR.591640, Motherboard Memory ID.NR.591676, and all electronic components in control cabinet.

 

What should you do if the OTIS Elevator Inverter REGEN OVFR03B-401 KAA21310ABD2 is suspended production?

As is known to all of us, OTIS Elevator Inverter REGEN OVFR03B-401 KAA21310ABD2 is produced in 2013, so far this year the model has been discontinued, but many of our customers have used this model of inverter on their elevators. Electronic components have a life span, and over that time, some of them will break down. Recently, ElevatorVIP has received helps from customers in India, their frequency converter is broken. And what should I do?

Do worry, we said. Let us to check in our warehouse, maybe they are in stock. Unfortunately, due to the high demand from customers, this model of frequency converter has been sold out, but we have a placement model to place it, that is OVFR03B-402 KAA21310ABF1 model, which pictures are shown as below:

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OTIS Elevator Inverter REGEN Internal Structure

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More Model of Otis Elevator Inverter, please access here: https://www.elevatorvip.com/product/otis-elevator-ovfr03b-404-regen-inverter-for-gen2-kda21310abl1/

 

What will happen if the escalator handrail guide block is worn out?

As you know, there are two handrail belts in one escalator, and two handrails are running with the nylon guide rail slider (slider block) under itself, runs every day. And each mechanical escalator spare part will be worn out in final. If the escalator handrail guide rail is worn out, which causes the running speed of two sides are different, even one or two sides are running slower than the escalator motor. Thereby it can cause passengers to lean back, there may be a risk of falls.
So, if you discover your escalator has the situation likes above we said, just replace the nylon handrail guide rail slider, it is so cheap, just takes a bit time of you. Here is the cheap escalator nylon handrail guide block: https://www.elevatorvip.com/product/escalator-mechanical-parts-guide-block-eev477an1/

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Otis Elevator Fault Code: OTIS300VF Fault

2000 Electronic software running error, causing CPU reset.
2001 Power on or press the reset button.
2002 The 5V phase is less than 2.5V, and the system shuts down during power failure.
2007 Software false interrupt
2008 overflow
2009 Hardware fake interrupt

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Position reference

2100 Too much slippage of the wire rope in the same direction as the elevator.
2101 The wire rope running in the opposite direction from the elevator is too slippery.
2103 Unlimited floor count, which is inconsistent with the actual number of well floors or exceeds the maximum or minimum floor limits.
2105 DZ input signal error
2106 DZ1 entered in the wrong order
2107 DZ2 entered in the wrong order
2108 The input sequence of 1LS is wrong, the elevator stops at the lower level, the DZ moves without 1LS signal, or the 1LS signal moves before the 1LS switch. It could be 1LS and 2LS working together.
2109 The 2LS input sequence is wrong, the elevator stops at the top floor, the DZ moves without the 2LS signal, or the 2LS signal moves before the 2LS switch. It could be 1LS and 2LS working together
2304 OCSS communication error.
2404 DCSS communication error.
2410 DCSS#1 timeout failure
2411 DCSS#1 Checksum error
2412 DCSS#2 Timeout fault
2413 DCSS#2 Checksum error
2414 LWSS Timeout fault
2415 LWSS Checksum error
2416 An unused DCSS address was received
2417 Received an unwanted DCSS address
2418 Sync error

MULTIDROP communication (DO2000,HPDS,LWSS)

2505 Communication timeout of MCSS and DBSS, or output buffer overflow.

Curve Generator

2600 The elevator rushed through the stop position
2601 Curve Synchronization Error

Running logical state

2701 Five seconds after the operation of PREPARE to RUN or reset, the driver is not ready to run, and the time-out fault occurs.
2702 DBSS lock or release lock timeout.
2703 Received a DBSS drive failure from DBSS.
2704 Receive DBSS stop or stop information
2705 DBSS exceeds the torque limit
2706 Run times of the flat layer
2707 Recovery times
2708 Initialize run times
2709 During the flat floor operation, the elevator is outside the gate area. (the number of failures also increased in 2706)
2710 The elevator wasn’t ready to run for five seconds.
2716 Wrong sequence of operation when changing from maintenance operation mode to normal mode.
2717 TCI ERO INS input signal is inconsistent.
2718 TCI startup is unsafe.
2719 In the maintenance operation mode of the car roof, the elevator operation beyond the end station causes an emergency stop. TCI curve parameter adjustment is not good.

Security

2800 The relative overspeed of normal, repair, recovery, reinitialization, learning, or replanar operation exceeds the absolute overspeed percentage.
2801 Tracking errors caused by normal, maintenance and low-speed operation speed exceeding the actual speed and command speed are allowed.
2802 The operation direction from PVC feedback is opposite to that of the instruction.
2803 During normal operation, the actual speed of the elevator at 1LS/2LS exceeds the corresponding NTSD setting value. SHUTDOWN will resume after the elevator stops slowing down with a predetermined deceleration.
2804 The elevator did not start during the scheduled time (DDP time), resulting in a timeout error. There is no wellbore signal input for a predetermined period of time during normal operation or reinitialization. It is possible that the slip of the wire rope loses traction.
2805 U/D relay input error. The action of feedback contacts of U/D relay is inconsistent with the reverse operation of instructions.
2806 DBP relay input error. The feedback contacts of the DBP relay are inconsistent with the required actions, or the LVC input is inconsistent with the desired state of the lock bypass.
2808 SC relay input error.
2809 DFC relay input error. In the case of open door and no action by the door, DFC signal still has input.
2810 DBD signal input error.
2811 The actual speed of the elevator in SS1/SS2 switch action exceeds the set speed of ETSD.
2812 Safety circuit
2813 The elevator’s safety loop disconnects at the DFC input point causing an emergency stop.
2814 FSO/ASO relay input error.
2815 EES detects errors. (NAO only)
2816 EES input error. (NAO only)
2817 Error setting of CODE switch on electronic board.
2818 Logical contradiction in door area of electronic board.
2819 Manual deceleration overtime.

 

OTIS Elevator Fault Code: LCB-2, TCBC and GECB Board Faults

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OTIS Elevator Fault Code: LCB-2, TCBC and GECB Board Faults

0100Opmode OCSS can not operate due to driver failure (driver failure BR NR)
0101EPOshutd The car can not operate in emergency power mode.
0102OpMmode DTC The door cannot be closed within a set time (without DCL, DFC or DW signals).
0103-DTO The door can not be fully opened within the set time (no DOL signal).
0104-DCP The car can not respond to the command signal in the car within a set time (e.g. the door is forced to open).
0105DBSS fault Driver failure
0200pos.Count When the system is running, the gate area and IP counts do not match. It may also be too short for the system to detect the gate area signal.
0201correct Correction operation
0202/DFC in EFR The ES signal is activated when the elevator is running fast.
0203/DFC in ESR The ES signal is activated when the elevator is running at low speed
0204TCI/ERO on The switch has been activated
0205 The elevator cannot be started due to the loss of SE signal (check the door bypass), and check whether the photoelectric of flat layer works normally: check whether SW6, SW7 and SW8 switches of the flat layer circuit of GECB board are all set in the position of ON; Check whether the photoelectric distance of 1LV and 2LV flat layer is within 30mm.
0207DDP in FR During the rapid operation of the elevator, there is no detection signal to the shaft (lost DZ signal) within the set time (DDP).
0208 DDP in SR Elevator at low speed running in the set time (3P) no radiance to the well signal.
0209 DDP in RS During the rescue operation of the elevator, no signals were detected to the well side within the set time (3P).
0210/DZ in NST DZ signal is not detected when the elevator stops (DY-TYP is set to 0, which may cause this fault)
0211//DFC in FR The safety loop is disconnected during rapid operation of the elevator
0212 /DFC in SR The elevator’s safety loop is disconnected at low speeds
0218 The frequency converter is out of order Shutdown
0219 This fault usually occurs when ADO/RLV function is enabled and TLD-DW-D(M1-3-1-5) is set to be greater than 0, usually set to 10. This failure will not occur when ADO/RLV is turned off.
02241-Relay—LCB-2 It’s the missing phase. The TCBC or GECB board for inverter does not end up running
0225 11OVAC dead F 110VAC The interrupt lasts 5 seconds
0226 LS-fault 1LS.2LS signal is abnormal.
02281LS.+2LS on 1LS.2LS signals operate simultaneously.
0230RSL ADR CHK Some special remote station addresses are not correct
0231 LSVF_:DR Drive failure
0232 LSVF_:SC The speed of the elevator is too high during deceleration. ADO or RLV cannot be completed to open ahead of time.
0300DBP:dfc_SE When the door is open or the door has been fully opened, DFC or SE(ADO) do not move; When the door is opening or fully open, the door bypass is interrupted.
0301 not dcl—–d When the door is fully open, the DCL signal does not move.
0302DCS:DW err In DCS operation mode, when the door is open, the DW signal is valid or the car door is completely closed, the DW signal is invalid.
0304 Dol.alw.on F When the door is completely closed, the DOL signal is activated.
0306 HwyAccess F The door lock loop is closed, but the hall door loop is still disconnected.
0400 RSL parity Two remote stations are connected to the same serial line using the same address.
0401 RSL sync Synchronization signal lost on remote serial line.
0500 RNG 1 msg Data error on two or three elevator serial lines.
0501 RNG 1 time In a certain time did not receive from the other elevator group control signal, group control failure.
0502 RNG 1 sio Serial data format fault.
0503 RNG 1 tx Serial data transfer timeout.

Rescue Method for Safety Gear Failure of ThyssenKrupp elevator parts

Scope of application: Vertical elevator with safety gear installed in ThyssenKrupp elevator, trapped by accidental action of safety gear.

Matters needing attention:

  • A. This appendix is for reference only. Please formulate corresponding emergency rescue methods according to the actual situation.
  • B. Members of the emergency rescue team shall hold the Certificate of Operators of Special Equipment issued by the main needle Department of special equipment:
  • C. More than 2 rescuers;
  • D. Emergency Rescue Equipment, Tools: Emergency Opening Layer Door Lock Keys, Wheels or Trailer Devices, Brake Opening Hands, Common Hardware Tools, Lighting Equipment,
  • Communication Equipment, Emergency Organization Address Book, Safety Protection Equipment, Hand Grinding Wheel/Cutting Equipment, Grab Bar, Warning Plate, etc.
  • E. should ensure its own safety while rescuing.
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Rescue methods:

First, disconnect the main switch of the elevator to avoid accidents caused by the sudden resumption of power supply in the rescue process.
Maintain communication with stranded passengers through emergency alarm device of elevator or other means of communication to appease stranded passengers.
If it is confirmed that passengers are injured or that passengers may be injured, the 120 Emergency Center should be notified immediately and simultaneously so that the Emergency Center can take corresponding actions.

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Rescue operation procedures:

1. Inform the trapped personnel in the elevator car: rescue activities have begun, prompt the personnel in the elevator car to cooperate with rescue activities, do not pick the door, do not attempt to leave the car;
2. Cut off the main power supply of the elevator in the machine room. People can see if the wire rope and transmission wheel are normal, and meet the requirements of the operation of the winding car.
3. Confirm the car, aim at the position where the overlap is, and select the floor station where the elevator is ready to stop.
4. Rescue Plan 1:

1). Rescue workers arrived at the top of the ThyssenKrupp elevator.

2). Set the overhaul switch of the car roof of the elevator at the overhaul position, so that the elevator is in the overhaul control state.

3). Connect the main power supply of the elevator, restore the speed limiter and the safety switch on the safety gear to make the safety circuit return to normal and the safety circuit of the floor lock to normal.

4). Rescue workers on elevator car roofs can release safety gear through the following operations:

  • a. If the car goes down, the elevator is operated upward by a point-motion mode to release the safety gear.
  • b. If the car is up, operate the elevator downward by the way of pointing and release the safety gear.
  • c. If the counterweight exceeds the speed limit, the elevator sedan car is operated downward by the point-moving mode to release the counterweight safety gear.

When the wedge of the safety gear is off the guide track, the rescue personnel on the elevator car roof operate the elevator by a point-to-point mode, so that the elevator stops at the selected floor station, confirms the level, and notifies other rescue personnel to cut off the main power supply of the elevator in the machine room.
After confirming the flat floor of the car, the rescue workers on the top of the elevator pan the door opening mechanism to open the elevator floor door/car door and rescue the trapped persons.
When the rescue program 1 can not complete the rescue activities, the rescue program 2 can be selected to continue the rescue

5. Rescue Plan 2:
Emergency operation can be used to open the floor door/car door after the car is flat and complete the rescue work..

ThyssenKrupp Diagnostic Tools (POME, DTB) for Elevator / Moving Walks / Escalator Testing

ThyssenKrupp Diagnostic Tools (Elevator Service Tools) are many models, but today we are talking about POME, and DTB, the real pictures are below.

ThyssenKrupp Diagnostic Tools can be used for testing elevator MC2 circuit board, motherboard pcb board, door machine, and frequency inverter, etc.

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More about ThyssenKrupp Diagnostic Tools (POME, DTB), please contact ElevatorVip.

What are functions of elevator safety gear?

Elevator safety gear is the part of elevator, which is the safety protection device for protecting elevator runs safely. Elevator safety gear is operated by elevator overspeed governor, the function is that stops the elevator car and holds the elevator car at the elevator guide rail in an emergency when the running speed of elevator car exceeds the set speed by elevator overspeed governor, or elevator suspension rope is in broken or loose situation. Elevator safety gear provides effective protection for elevator running in safe; usually it is installed on the elevator car or counterweight frame.

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Types of Elevator safety gear

In accordance with the different structure of its brake components, elevator safety gear can be divided into wedge-shaped block, eccentric gear, and roller. According to stop distance, it can be divided into instantaneous safety gear and progressive safety gear.

More introduction of elevator safety gear, please review ElevatorVip’s official website: https://www.elevatorvip.com/

This is the Elevator Progressive Safety Gear (Model: CNHZ30A)

Why did the Elevator SIEI Frequency Inverter PG Card TL-EXP-E burn out?

What is the function of SIEI Frequency Inverter PG Card?

The SIEI Frequency Inverter PG Card TL-EXP-E is used to collect the signal and send the signal to encoder, and finally send to the elevator control system, so it is used to calculate the position of car in the hoistway.

OTIS Elevator SIEI Frequency Inverter PG Card TL-EXP-E V5.2 This version of TL-EXP-E V5.2 is compatible with the lower version, such as V2.2, V3.0, V4.0,etc.

OTIS Elevator SIEI Frequency Inverter PG Card TL-EXP-E V5.2
This version of TL-EXP-E V5.2 is compatible with the lower version, such as V2.2, V3.0, V4.0,etc.

Now, the current versions that are commonly used on market have TL-EXP-E V2.2, TL-EXP-E V3.0, TL-EXP-E V4.0, TL-EXP-E V5.0, TL-EXP-E V5.2 etc.

Why did the SIEI Frequency Inverter PG Card burn out easily?

If the AB phase of No.3 and No.4 pins on the SIEI frequency inverter board, which is contacted with DC24 of No.2 pin, then the SIEI frequency inverter PG card will be burned out, or other case, The optical couplers on the motherboard are very close to each other, also the SIEI frequency inverter board will be burned out.

Where can I replace the Elevator SIEI Frequency Inverter PG Card TL-EXP-E?

If the Elevator SIEI Frequency Inverter PG Card is damaged, please contact ElevatorVip, we will offer one-stop solution for each version of them. More about Elevator SIEI Frequency Inverter PG Card, please review here: https://www.elevatorvip.com/product/elevator-spare-parts-extension-board-for-frequency-inverter-siei-eev616al8/

Video of SIEI Frequency Inverter PG Card from ElevatorVip.com: