Shanghai Mitsubishi LEHY-Pro (NV5X1) Elevator Low-speed Operation Debugging Essentials

1.Preparation before low speed operation

①. If there is a backup emergency power supply device, manual wiring is required to keep the normal power identification relay #NOR in the state.
Short-circuit the 420 (ZTNO-01) and NORR (ZTNO-02) terminals on the Z1 Board.
②. Turn the toggle switch "DRSW/IND" on the human-machine interaction device to the middle position to release the door cut-off state in the previous steps.
③. When the safety circuit is normal, the corresponding LED on the human-machine interaction device should light up. If any of the safety circuit switches is disconnected, LED 29 must be off.
   (1) Run/Stop switch on the machine room control box;
   (2) Run/Stop switch on the car top station control box;
   (3) Run/Stop switch on the pit operation box;
   (4) Machine room stop switch (if any);
   (5) Car top emergency exit switch (if any);
   (6) Car safety clamp switch (can be short-circuited for emergency electric operation);
   (7) Hoistway emergency exit switch (if any);
   (8) Pit door switch (if any);
   (9) Pit stop switch (including the second pit stop switch (if any));
   (10) Car side speed limiter tensioner switch (can be short-circuited for emergency electric operation);
   (11) Counterweight side speed limiter tensioner switch (if any) (can be short-circuited for emergency electric operation);
   (12) Counterweight side buffer switch (can be short-circuited for emergency electric operation);
   (13) Car side buffer switch (can be short-circuited for emergency electric operation);
   (14) Terminal limit switch TER.SW (can be short-circuited in case of emergency electric operation);
   (15) Electrical switch for speed limiter on car side (can be short-circuited in case of emergency electric operation);
   (16) Electrical switch for speed limiter on counterweight side (if any) (can be short-circuited in case of emergency electric operation);
   (17) Manual turning switch (if any);
   (18) Side door lock switch (configured for ADK);
   (19) Emergency exit switch at floor station (if any);
   (20) Ladder switch in pit (if any);
   (21) Compensating wheel switch (if any);
   (22) Magnetic scale belt tensioning switch (if any) (can be short-circuited in case of emergency electric operation);
   (23) Wire rope slack and broken rope switch (configured for Russian direction).

④. When the run and up/down buttons of the emergency electric operation device are pressed simultaneously and continuously, the following light-emitting diodes and contactors must operate in sequence.

   If the Up/Down button is pressed continuously, the LED and contactor will go out or release, and then repeat the above sequence 3 times. This is because the motor is not connected and a TGBL (too low speed) fault is triggered.

⑤. Turn off the circuit breakers MCB and CP.
⑥. Reconnect the previously removed motor cables U, V, W and the brake coil cables according to the original wiring.
<Note>
If the brake cable connector is not connected to the control cabinet, the operation process will not start.
⑦. The low-speed operation can be operated in the machine room using the switch on the emergency electric operation device. After checking the encoder wiring, you also need to check the operation switch on the car top.

2.Write to the magnetic pole position

The following steps can only be performed after ensuring that the floor doors and car doors are closed securely.

Table 1 Magnetic pole position writing steps
Serial number	Adjustment steps	Precautions
1	Verify that the motor cables U, V, W and brake cables are properly connected to the control cabinet.
2	Make sure the circuit breaker CP inside the control cabinet is closed.
3	Confirm that the elevator meets the conditions for low-speed operation. Confirm that the (NORMAL/EMERGENCY) switch of the emergency electric operation device is turned to the (EMERGENCY) side.
4	Set the rotary switch SET1/0 on the human-machine interface device to 0/D, and the seven-segment code will flash to display A0D.	SET1/0=0/D
5	Press the SW1 switch on the human-machine interface downward once, the seven-segment code will flash quickly, and then the current magnetic pole position will be displayed.	Press SW1 for the first time
6	Press the SW1 switch on the human-machine interface device down again (at least 1.5 seconds) until the seven-segment code displays PXX (XX is the current synchronization layer. If the layer has not been written, the displayed synchronization layer may be incorrect).	Press SW1 for the second time
7	Emergency electric operation, until the seven-segment code displays the new magnetic pole position, and the elevator does not stop suddenly, the magnetic pole position is written successfully.	Please observe whether the magnetic pole position value changes as a basis for successful writing.
8	Set the rotary switch SET1/0 on the human-machine interaction device to 0/8, and press and hold the SW1 switch down until the seven-segment code starts to flash quickly, and then exit the SET mode.

3. Low speed operation

   When equipped with the shaft information system, the absolute position sensor has two configurations, namely magnetic scale and code tape. For the sake of convenience, the magnetic scale and code tape are collectively referred to as scales in the following text.
   Before the scale is installed, enter the scale installation mode first, see 5.
   After pressing the emergency electric or maintenance up direction and command button, the LED UP on the human-machine interaction device should light up and the car should go up. After pressing the down direction and command button, the LED DN on the human-machine interaction device should light up and the car should go down. If the car is lighter than the counterweight, the car may have an upward impact and then go down normally. The manual operation speed is 15m/min.
During manual operation debugging, it must be confirmed that the brake can be fully opened and the traction machine has no abnormal noise and vibration.
   In addition, when the car stops, the brake contacts should be fully closed to ensure the effectiveness of the brake.
During manual operation, the car must stop immediately when the safety circuit such as the safety switch, floor door or car door lock switch is disconnected.
   <Note>
   During the entire installation and adjustment process, in order to prevent the motor from burning due to overcurrent, the following points must be handled with great care.
   I. The compensation chain must be hung before low-speed operation.
      If the compensation chain is not hung during low-speed operation, the motor will operate under the condition of exceeding the rated current. Therefore, if there is no special need, the above situation should be avoided. If it is necessary to operate at low speed without hanging the compensation chain, it is necessary to add an appropriate load in the car to balance the weight of the counterweight. If the stroke exceeds 100 meters, it is necessary to monitor the motor current to ensure that the current does not exceed 1.5 times the rated current.
     If the motor current exceeds 1.5 times the rated value, the motor will burn out within a few minutes.
   II. The hanging steps and requirements of the compensation chain must refer to the mechanical part of the installation and maintenance information.
   III. After the compensation chain is hung, the car must be loaded with a load of balancing counterweight and run at low speed until the balance coefficient is tested.

Note: If the scaffolding-free installation process is adopted, it is necessary to use the scaffolding-free special tooling and enter the scaffolding-free installation mode to move the car.

4. Floor learning with PAD

   When equipped with PAD, manual layer writing operation can only be performed after the terminal deceleration switch, magnetic isolation plate, leveling and re-leveling switch in the well are installed.
   When equipped with well information system, there is no such operation.

Table 2 Floor learning steps when equipped with PAD
Serial number	Adjustment steps	Precautions
1	Emergency electric operation stops the car at the lower terminal floor re-leveling area.
2	Adjust the rotary switch SET1 on the human-machine interface device to 0 and SET0 to 7, and the seven-segment code will flash and display A07.	SET1/0=0/7
3	Press and hold the SW1 switch on the human-machine interface device until the seven-segment code starts to flash rapidly, and then F01 will be displayed.	Press SW1 for the first time
4	Press and hold the SW1 switch on the human-machine interface device down again until the seven-segment code starts flashing, and then F00 will be displayed.	Press SW1 a second time
5	Manually run the car continuously from the lower terminal floor to the upper terminal floor and then to the leveling area.
6	The elevator will automatically stop running and the seven-segment code will stop flashing, indicating that the floor writing is successful.
7	If the car stops before reaching the upper terminal floor, repeat steps (1)-(5).	If the floor height data cannot be written, check the action position of the terminal limit switch, the leveling/re-leveling device and the encoder.
8	Restore the rotary switches SET1 and SET0 on the human-machine interaction device to 0 and 8 respectively.	SET1/0=0/8
9	Press and hold the SW1 switch on the human-machine interface device until the seven-segment code starts to flash quickly to exit the SET mode.

5. Floor learning when configuring the shaft information system

5.1 Scale Installation

   When equipped with a shaft information system, this mode can only be entered when performing scale installation operations and temporary limit position learning. It is forbidden to enter this mode in other cases!
   After the scale is installed, the temporary limit position is written immediately.
   When equipped with a PAD, there is no such operation.

Table 3 Entry and exit of scale installation
Serial number	Adjustment steps	Precautions
1	Make sure the elevator is in emergency power or inspection mode.
2	Adjust the rotary switch SET1 on the human-machine interface device to 2 and SET0 to A, and the seven-segment code will flash and display A2A.	SET1/0=2/A
3	Press the SW1 switch on the human-machine interface device downward once, and the seven-segment code will flash quickly, and then it will display "oFF" without flashing.	Press SW1 for the first time
4	Press and hold the SW1 switch on the human-machine interface device down (at least 1.5 seconds) until the seven-segment code starts to flash slowly.	Press SW1 a second time
5	Turn the RESET switch of ZFS-ELE200 within 10s (valid for a holding time of [0.5s, 10s]).	Turn the reset switch on the ZFS-ELE200
6	The seven-segment code will display "o.n.", and the scale installation mode has been successfully entered.
7	If the seven-segment code displays "on", you need to rotate the RESET switch of ZFS-ELE200 again to clear the ZFS-ELE200 related faults, and the seven-segment code will display "o.n.".	If the digital tube does not display ".", you need to rotate the reset switch again.
8	Carry out scale installation. When emergency electric or maintenance operation is performed in scale installation mode, the car top buzzer will sound.
9	After the ruler installation is completed, press and hold the SW1 switch on the human-machine interface device (at least 1.5 seconds) until the seven-segment code displays oFF to exit the ruler installation mode.

Note:
①. In addition to the above operations, turning the SET1/0 switch away from 2/A or resetting the P1 board will automatically exit the scale installation mode;
②. The meaning of the seven-segment code displayed when entering and exiting the scale installation mode is shown in the following table:

5.2 Temporary limit position writing

   When the shaft information system is equipped, if the temporary limit position has not been written, the elevator needs to be in maintenance mode before entering the scale installation mode. Do not turn off the power while writing the upper/lower temporary limit position.
   After the upper/lower temporary limit position is written, the elevator will have the terminal protection function. When the emergency electric or maintenance operation reaches the terminal floor door area, the elevator should stop running normally.
   When equipped with PAD, there is no such operation.

Table 5 Temporary limit position writing steps
Serial number	Adjustment steps	Precautions
1	The car top operator runs the elevator car to the upper temporary limit position (UOT action) through maintenance.	Confirm the switch installation position according to the installation drawing
2	The operator in the computer room adjusts the rotary switch SET1 on the human-machine interaction device to 5 and SET0 to 2, and the seven-segment code will flash to display A52.	SET1/0=5/2
3	Press the SW1 switch on the human-machine interface device downward once, the seven-segment code will flash quickly, and then will flash slowly to display the upper temporary limit position in the current parameter.	Press SW1 for the first time
4	Press and hold the SW1 switch on the human-machine interaction device down (for at least 1.5 seconds) until the seven-segment code starts to flash quickly. After writing is completed, the seven-segment code will stop flashing and display the upper temporary limit position in the parameter. If writing fails, E will be displayed.	Press SW1 a second time
5	The operator on the car top restores the maintenance switch to normal, and the operator in the machine room performs emergency electric operation to move the elevator downward and out of the upper temporary limit position (UOT).	Requires operation by personnel in the machine room
6	Turn the ZFS-ELE200's RESET switch to clear ZFS-ELE200 related faults.
7	The operator on the car top runs the elevator car to the lower temporary limit position (DOT action) through maintenance.
8	The operator in the computer room adjusts the rotary switch SET1 on the human-machine interaction device to 5 and SET0 to 1, and the seven-segment code will flash to display A51.	SET1/0=5/1
9	Press the SW1 switch on the human-machine interface device downward once, the seven-segment code will flash quickly, and then will flash slowly to display the lower temporary limit position in the current parameter.	Press SW1 for the first time
10	Press and hold the SW1 switch on the human-machine interaction device down (for at least 1.5 seconds) until the seven-segment code starts to flash quickly. After writing is completed, the seven-segment code will stop flashing and display the lower temporary limit position in the parameter. If writing fails, E will be displayed.	Press SW1 a second time
11	The operator on the car top restores the inspection switch to normal, and the operator in the machine room performs emergency electric operation to move the elevator upward out of the lower temporary limit position (DOT).	Requires operation by personnel in the machine room
12	Reset the P1 board or power off the elevator and then power it back on.	Don't miss it!

<Note> The elevator can only be operated normally manually (emergency electric or maintenance) after the scale is installed and the temporary limit position is written.

5.3 Write floor data

   The write operation can only be performed after the ZFS-ELE200 is installed, the indicator light on the safety box is normal, the temporary limit position learning is completed, the elevator door signals are normal (including GS, DS, CLT, OLT, FG2, MBS, etc.), the door opening and closing buttons, the control box buttons (BC), the car display (IC) are working properly, the multi-party call system is working properly, and the car door blocking device is working properly.

   When performing layer write operations, it is recommended that someone remain in the mechine room to provide rescue when a situation arises!

   Automatic write layers are preferred.

Note: Steps 7-9 can input the deviation value through the APP. The operator in the car can directly use the APP to input the deviation value and then confirm the operation.
Step 12 can record the current position through the APP. The operator in the car can directly use the APP to record the current floor position (confirm the leveling)

The meanings of the key seven-segment codes or IC displays are shown in the following table:

   When automatic floor writing cannot be performed due to errors in the preset floor table, large deviations in civil engineering, or the configuration of a ten-key operation box, manual floor writing can be used.

The meanings of the key seven-segment codes or IC displays are shown in the following table: