ZK-2500H Seismic Monitoring Controller for Escalator

User's Manual

Introduction

A brand-new seismic monitoring system is launched for customers, and this modern inspection system only requires minimal maintenance after installation. Since there are many functions in this system, only after you master it can you operate easily. We sincerely hope that you can read the manual in detail before proceeding.

Characteristic

● 6-axis sensor

● Adoption of patented seismic monitoring electronic instruments

● Readable and programmable LCD interface

● Compliance: ASCE25-97, CSA B44.1, ASME A17.5 and UL508 Standards

● Relay output:

●Maximum load 3amps @30 VDC or 250 VAC

●Normally open or normally closed

● Self-locking or non-self-locking

● Record date, time, duration and peak value of each coordinate value

● The specific time of each seismic wave

Panel

Battery Power

Power button is used to connect and disconnect the battery. To extend the battery life, please set it OFF when not using the machine. This button is only used for controlling the battery, when using an external power source, setting the button under OFF status can only disconnect power supply from the battery. As long as the external power is still on, this seismic sensor will not be shut down. To shut down this machine, you’ll need to cut off external power supply and set the power button under OFF statue at the same time.

Function Key

Function of each button：

UP     Move the cursor to the next location to enter the next menu, data+ (press and hold the button to continuously do data+).

SET    Switch between function menu and normal display, to enter function menu from sub-menu, or to rest the alarm.

ESC Return to the last menu and do test in normal mode when charged.

OLED Display

OLED is the most direct feedback mode. While doing normal operation, it shows date(yy/mm/dd) at the top left corner of the screen, time(24hr) at the top right corner, status information such as System Normal, Level Error, or Alarm down the screen. There’re no angle limits on OLED screen. It is with a very low power dissipation and the power is supplied by the internal power resource. It can display under any circumstances without being influenced by the temperature.

Relay output port

There are two connectors (10 pins in total) on the left side of the operation panel. There are 3 relays with 3 connection points on each relay. Relays on both sides are self-locking. Output mode of one relay is ALARM, THE OTHER IS TROUBLE. Once the relays are triggered, they won’t change even disconnected to the power. You can use RELAY CONTACT RESET to reset the relay. The relay in the middle is a non-self-locking relay with ALARM output mode, once it quits the ALARM mode it’ll be reset automatically.

Every relay has 3 connectors, the yellow one is a public connector, the blue one is a normal on connector, the green one is a normal off connector. (see on the wiring diagram)

Button to reset Relays

These two buttons are used to reset the self-locking relays on both sides. Pressing either side won’t affect the screen display or shut down the alarm sound. Press ALARM OR Trouble to reset the corresponding relay. If the relay is working, you can hear a very clear contact click sound by pressing ALARM OR TROUBLE, however it won’t affect the system.

Input port to reset ALARM remotely

Connect normal on switch to this port to reset the earthquake alarm remotely. (i.e.: press normal on switch to reset the alarm in the control room rather than doing the operation locally.) Such operation effects the same as connecting local switch or press ALARM RELAY CONTACT REST locally. Requirement of connecting external switch: 100Ma@12VDC.

Product wiring diagram

Product outline dimensional drawing

Install

1. Use bolts or shaft pins to install the machine on the bearing wall or connected holders. You can install it vertically or horizontally by using one of the axes(X,Y,Z), the location self-checking system shall run the check automatically to set the location as horizontal. Caution: Please don’t install the machine on any unstable objects to prevent further false triggering.

2. Connect control panel and the output connector of the relay, be aware that there are three output connectors on each relay.

While “TROUBLE” output port is triggered, it means there’s an issue in the seismic sensor system and it needs to be checked on-site. It has to be connected to the sound alarm or display alarm device in the control room or control cabinet. “ALARM”is used to output the relay action for alarming. Self-locking relay will be kept as normal until reset button being pressed. The other non-self-locking relay will be triggered automatically when alarm happens and reset automatically when alarm being shut down. Caution: When the device is off, the self-locking relay might be either under triggered status or reset status. When connected to the power, reset button should be pressed to reset the relay so that it can start over to response to the function execution (when there are all self-reset relays, there’s no self-locking function).

3. If remote reset is required for the alarm, connect the normal on switch to connector of REMOTE ALARM RESET. Required load for switch：100mA@12VDC.

Power in.

4. While connecting by AC power supply with high voltage (120V/60HZ or 240V/50HZ), connect AC-DC module to the input port.

5. Set power button as “ON”. (No such function)

6. Press reset button of “ALARM” and “TROUBLE” to make sure all self-locking relays are reset.

7. Initialize the software settings.

Initial settings

●Connect to the external power supply to work the machine

Display at once

then：

Shows that the external power is in, if it’s disconnected it shall display OFF

Press and hold UP to show the screen as below to choose system.

System initialization includes to make up to the error happens due to the machine being installed aslant. Since it will trigger the alarm system, you may choose NO to skip this function if you’re not finalizing the installation. You may execute this process when the installation is completely finished.

Select YES, the screen will show as below, select No to skip the system initialization.

Be aware that the sensor should stay still while Sensing to guarantee the data getting read accurately. Normal operation mode will be switched on after the calibration.

Function

This chapter is to describe how to select different functions by using SET button.

Press UP to move the cursor to corresponding menu, then press SET to confirm the selection.

Test（Select menu 1.TEST）

This testing function adopts some basic testing methods to test if the system is working as normal. There are two testing methods to select from. Use UP to move the cursor to YES or NO. Press SET to select one of the methods.

      1.Test by relays：Trigger all three output relays, the buzzer shall make a continuous alarm sound. This function can be used to check if the exterior devices connected to these connectors are working logically as expected when the relays are triggered.

     2.Test without relays：The buzzer makes a continuous alarm sound. This function can be used to check if the system is working as normal without influence the relays. Meanwhile it won’t influence devices that are connected to this machine.  

Check（Select menu 2.CHECK）

Information that shows under this function is shown as below.

First it shows version and mode.

Press UP

Press UP

Press UP

Press UP

his function shows some status of the system. Press UP to roll to the next item. Press

ESC to return to the main menu of selecting functions.

This table below shows and explains some items monitored by the testing function:

Setup（Select menu3.SETUP）

Setup functions include：

●Set date and time

●Initialization check

●Meter current acceleration magnitude

●Setup trigger value of earthquake alarm

●Checking time of warning

●Earthquake confirming time

●Warning grade

Set date and time（Select sub-menu 1.SET DATE&TIME）

 Here is the explanation of setting date and time. Please notice that the format of date set here is YY/MM/DD (i.e.: we set Jan 25, 2018 as 18/01/25), and we use 24-hour time system (i.e.: 6am in the morning is 06:00, while 6pm in the afternoon is 18:00).

1.Select the function set date and time: Use UP to move the cursor to“1.SET DATE&TIME”, then press SET. The cursor will flash upon the date or time.

        2.Use SET to move the cursor to the location that needs to be modified.

        3.Use UP to modify the value at the location selected on the last step.

4.Repeat step 2 and 3 to modify all required values.

5.Press ESC to save the modified data into the system clock and return to the main menu.

Initialization check（Select sub-menu 2.CALIBRATE）

 The sensor of the seismometer has been set to the best status before delivery, so this function shall only be used when errors happen due to installation locations or angles. Moreover, this function shall only be executed when the seismometer is fixed stably at a position.

  When initialization check is required, use UP to move the cursor to“2.CALIBRATE”, then press SET. The LCD will show as below:

Most importantly, during the whole check, the seismometer must stand still. When the check is finished, the LCD will return to the normal operation interface.  

Metering（Select sub-menu 3.Metering）

This function is to meter accelerated speed caused by all external forces apart from the gravity. These forces are displayed as accelerated speed on (XYZ)axes. The diagram below shows the relationship between direction and the coordinate axis. The vertical axes is with a “^” sign. In the case as below, the Z axes is vertical.

There are two display methods for this function. The first one is to display accelerated speed on each axes (Unit: G); the other one is to display the gradient on each axes. Press and hold UP for 1 second to switch the metering function into the mode of metering accelerated speeds. Press and hold DOWN for 1 second, to switch it into the mode of metering angles.   

In the mode of metering accelerated speed, each force is described as a absolute g -value of the force (1.00G is the Unit of acceleration of gravity). The measurement shall be corrected to 0.01G. If the initialization check has been done after turning on the machine, then due to no external force at the moment, the data displayed on each axes shall be 0.00（1.00 on Z axes）.

In the mode of metering angles, the system will automatically calculate the deviation between the 3d angle of the current seismometer and the previous angle calculated after initialization check in real-time. The measurement shall use degree as the unit and be corrected to 1 degree.

Setup trigger value of earthquake alarm（Select sub-menu 4.Alarm Setting）

   This function is used to set a trigger value to decide whether the system gives an alarm when earthquake happens. There are two setup methods: 1-ASCE25-97 Standard；2-User defined. It shows as below：

 ASCE 25-97 Standard provides data of seismic waves within certain frequency range and the corresponding threshold value of accelerated speed for the system to judge whether to give on alarm or not. Please check appendix A for more information about this standard. Due to the high accuracy of the sensor, the system is able to divide the part that is judged to alarm in the standard into 10 more specific grades.

These grades are numbered from 1 to 10, no.1 is with the highest sensitive while No.10 is with the lowest. No.6 is defaulted as it’s in the middle, it is applicable for most of situations. Use UP to change the ASCE grades then press ESC to save the settings and return to the main menu.

Checking time of warning（Select sub-menu 5.Suspected Time）

  To adjust the time of checking and resetting the warnings. Adjustment range 5-30s.

Earthquake confirming time *（Select sub-menu 6.Earthquake Time）

 To adjust the time of checking and resetting the earthquake alarms. Adjustment range 20-100s.

Warning grade（Select sub-menu 7.Warning）

 This function is to set the trigger grade of warnings. There are 12 grades to select（01-12）,grade01 is with the highest sensitive while grade 12 is with the lowest.

Description of relay function

1、 ALARM Self-locking relay：When the values of accelerated speed on X, Y, Z axes are bigger than the grade set for alarm (ASCE-LEVEL), the relay shall give out an alarm, then ALARM self-locking relay shall act, as the screen, buzzer, indicator lights shall act at the same time, meanwhile, ALARM self-resetting relay shall reset automatically. This relay can only be rest manually or remotely.

2、 ALARM Self-resetting relay：When the values of accelerated speed on X,Y,Z axes are bigger than the grade set for warnings（WARNING-LEVEL）, the system shall enter the warning preparation stage, the relay shall act absorption, if the values of accelerated speed on X, Y, Z axes reach the warning value again in within 15 seconds, the relay shall keep acting, as the screen, buzzer, indicator lights shall act as the same time. When the vibration vanished, set the delay time to reset the system, switch screen, buzzer and indicator lights under suspected warning status. If during the suspected warning time, values of the accelerated speed on X, Y, Z axes don’t reach the warning value, the system shall quit the warning status and the relay shall be rest.

3、 TROUBLE Self-locking relay: When the sensor is with issues, broken or disconnected to the power, this relay shall act absorption and display correspondingly, this relay can only be reset manually, it cannot be reset remotely.

Record (Select sub-menu 4. RECORD)

On LCD, check the data of seismic waves as below：

16 sets of data will be shown, press UP to check data of set XX as below:

Press UP to check the value of accelerated speed on X axes of set 13:

Press UP to check the value of accelerated speed on Y axes of set 13:

Press UP to check the value of accelerated speed on Z axes of set 13:

Press UP to check the continuous time of accelerated speed of set 13:

Press UP, it shows the end of data.

Backup battery

Rechargeable battery is used as the backup battery, it can be charged when the main power is on. Only when the battery is switched ON, the backup battery starts to work.

Product work-flow diagram

Detection

 When the sensor detects a vibration, the screen will change to the mode of suspected sensing, self-resetting relay starts to work,

When the vibration stops, if it’s not enough to trigger the alarm, the screen will change back to normal mode, self-resetting relay will reset automatically, then switch to normal checking mode.  

Warnings

     When the sensor detects suspected a warning of earthquake of which relevant values are higher than the set value, the system will trigger any relays that have been set to activate such warning and give out an alarm sound. The screen will show as below:

When the earthquake is finished, the system will save up all recorded data.

Non-self-locking relay shall keep acting absorption, and buzzer shall be muted and switched to suspected warning status.

Troubles

    When the system found errors during self-check, TROUBLE will be flashing on the screen, trouble relay will be triggered, the table below shows the possible reasons that may cause troubles.

    When the trouble is solved, the LCD will automatically stop displaying the trouble information. Under any circumstances, the trouble self-locking relay can only be reset by pressing TROUBLE RELAY CONTACT RESET. To reset power won’t help.

System Check

The system shall be checked regularly to make sure all components work as normal.

Use CHECK function：

1. Press SET

2. Press UP to move the cursor to CHECK function

3. Press SET

4. Press UP to monitor conditions of all items (see explanations of each items in CHECK function).

System check executed by using TEST is also run during this time. Use TEST function:

1. Press SET

2. Press UP to move the cursor to Test function

3. Press SET

4. Press UP to choose Yes(to check buzzers and relays) or No(to check buzzers only).

You can use “WITH RELAYS” to do the test if needed so that you can check the connected devices all together.

Analyze and calibrate the sensor

Seismic sensors don’t need to be calibrated regularly. To make sure that the seismic sensor runs in the best condition, it is suggested to do system check and on-site trial every 4-5 years, moreover, it is required to do check after earthquake as well. You can also contact local distributors for more relevant information. 

Technical parameters

Sensor：Measurement of 3D accelerated speed. To monitor the vertical (P wave) and horizontal (S wave) accelerated speed.

Response frequency：0.5-15Hz, software filter

Alarm sensitive grade：Set according to ASCE 25-97 Standard（i.e.:0.15g@1HZ,0.30g@5HZ）

Self-check：Self-check is available while turning on, resetting and operating the machine.

Power：120-220V AC 50/60Hz（connect to high voltage input of power module）

      12V AC or 12V-24V DC（connect to low voltage power input of the system）

Relay load capacity：5A@250VAC or 5A@30VDC

Range of working temperature：-25℃~40℃

Relative humidity：0-99%

Input：2-core lead connector, to reset self-locking relays remotely2

Output：3-core lead connector, for the output of ALARM self-locking relays (NC, common, NO)

3-core lead connector, for the output of ALARM non-self-locking relays (NC, common, NO)

2-core lead connector, for the output of TROUBLE self-locking relays (NC, common)

Dimension：Please check the Product outline dimensional drawing

Approval standards

This product complies with the standard as below：

●ASCE 25-97

Intensity and Mercalli Scale revised edition

Seismic intensity means the shaking degree caused by earthquake within certain special area. It shows the influence happens to people, buildings and environment caused by the earthquake.

Mercalli scale normally uses I-XII to distinguish. There are some crucial factors in Mercalli scale: i.e.: soil constitution, distance to the seismic center, distance from position where the earthquake happens to the land surface. Mercalli scale is not shown by numbers, but by damage value caused by some factors such as how people are frightened and how much shaking people feel. This information is collected by survey after the earthquake.

Mercalli Scale revised edition:

Power supply connection

      The internal power switch module can be connected directly to AC power（120V 60Hz or 240V 50Hz）.

     Warning：Shock hazard. All connections of electric appliances must be done by qualified electricians according to applicable laws and regulations. Failing to follow such warnings might cause property losses, personal injuries or deaths.

     Connect to the power

1. Disconnect the high voltage power

2. Pull out the power supply terminal

3. Connect the power cable to the connector of power module, tighten the connection

4. Use ribbons to fix the input and output cable to an unmovable object to make sure that the connector cannot be pulled out easily.

Appendix D: Quick install guide of ZK-2500H Seismic Sensor

1） Use two bolts or expansion bolts to fix the machine tightly on bearing wall or on the floor.

Notice：Use the bearing surface that was used while installing the bearing wall or the wall. During installation, make sure that the surface is horizontal and cannot be moved or shook easily.

2） Connect the leads by wire connectors.

Contact Us

SUZHOU ZHIKEJINGLING ELECTROMECHANICAL CO., LTD

Company Address：No.155, Zhongfeng Street, SND, Suzhou City

Tel：0512-66627461    15358803325

Fax：0512-66627461

Mail：ywh_128@163.com  

QQ:2360641768

Technical Support

Tel:13915573467          

Mail：hsj618-hsj@163.coom

Warranty

The manufacturer provides free maintenance to material and process defects that happen to our customers during use, the free maintenance service is valid in 2 years starting from the purchase date. However, the warranty doesn’t include the situation that if the product is damaged due to force majeure, unauthorized repair, misuse, lack of reasonable measures or operate against the instruction. This warranty can replace all other warranties, obligations and responsibilities. The manufacturer shall not take any responsibility to any personal injuries, property losses or losses caused by any accidental events.