KM6630 axis vibration monitoring instrument

1Main functions

KM6630Dual channel（AChannel andBThe channel shaft vibration monitoring device can receive two input signals from eddy current sensors (installed on the outside of the shaft),ATheBThe channels independently and continuously monitor the shaft vibration of the machine. The functions described belowAandBThey are all independently possessed at the same time.

● Range: within0-800MmOptional internal grading,Users can customize the instrument selection, which is pre-set by the manufacturer.

● Display function:

The amplitude value of shaft vibration (displacement unit), alarm value, and function code information are respectively displayed on the panelLEDDisplay on the window

LEDs of different colors are used to indicate the working status of the instrument.

● Alarm function:

Users can set their own "alert" and "danger" values for vibration. The indicator lights on the panel indicate "alert" and "danger" alarms, and the rear panel terminals provide relay outputs.

● Alarm delay function:

This function of the instrument increases the reliability of the alarm. Users can choose the delay time for triggering the warning and danger relays when selecting the instrument. This function is pre-set by the manufacturer or set by the user themselves.

● Alarm reset function:

When an alarm occurs, the alarm reset is divided into two methods: self-locking and automatic reset; When self-locking, the alarm function is always maintained. After the monitoring situation is normal, the "reset" button needs to be pressed to reset; When resetting automatically, the alarm function will be automatically released after the monitoring situation is normal. Users can choose one of the methods when selecting instruments, which is pre-set by the manufacturer or set by the user themselves.

● Self diagnostic function:

The processor performs a self check on the instrument measurement circuit at regular intervals, depending on the working condition of each channel measurement circuit.

● Sensor power supply current limiting protection:

When a sensor power short circuit occurs accidentally during use, the current limit should be ≤30mAIt will not cause a big fire and meets the monitoring requirements

Safety requirements on site.

● Record output:

There are terminals on the back panel4-20mAThe output and output terminals are designed with short-circuit protection function.

● Sensor signal buffer amplification output:

The buffered and amplified sensor signal is output from the rear panel terminal for user diagnostic analysis.

● Panel setting function:

The parameters and function settings of the instrument can be set in real-time through the buttons on the panel, with smooth and convenient switching.

2Technical specifications

● Frequency response:0.5～10KHzInternal grading is optional and pre-set by the manufacturer.

● Input:

sensor input φ5Or φ8Eddy current sensor,Sensitivity is8V/mm

Input points 2point

input impedance 50KΩ

● System input/Output conversion accuracy (including sensors):

Record output ±1%(Full range) 25℃

digital display ±1%(Full range) 25℃

Record output (rear panel terminal):

4-20mA(Maximum load)500Ω）； Current output capability ≤30mA

Buffer output (rear panel terminal): The sensor signal is buffered and amplified before being output from the rear panel terminal

Sensor power output:-24±1V，15mAShort circuit current limit ≤30mA

● Report Police:

Alarm Setpoint 4point A通道(danger1point,alert1point),B通道(danger1point,alert1point)

Relay status Frequent power loss

Alarm relay output4Group（Adanger,Aalert,Bdanger,BNormally closed (alert)

Contact output capacity 250VAC/5Aor30VDC/10A

alarm delay 0~9Within seconds, set arbitrarily

Alarm reset auto-reset,self-locking(optional)Priority should be given to automatic reset.

● Ring Environment:

Operating Temperature 0 ∽ 65℃

Storage temperature -30 ∽ 85℃

relative humidity 20 ∽95%No condensation

● Working power supply:165-265VAC，47-440HZ

● Power consumption:10 Watts

Quality: ＜1.5KG

● Standard desktop metal chassis ABSFace frame Flexible film panel

1Display and button instructions

● Display window:

The front panel of the instrument panel is equipped with a left（AChannel) Right（BTwo display windows, each with a channel3bitLEDThe digital display tube displays two channel monitoring values during normal monitoring of the instrument; When performing functional operations, display functional parameters.

● Status indicator light:

Below the display window on the front panel of the instrument panel, there is a8A light-emitting diode used to indicateLEDThe nature of displayed information, instrument functions, and alarm status are as follows:

AOKandBOK Green, when it is constantly on, it indicates that the system channel is working normally. If it flashes,It indicates that the sensor and the connected circuit are not working properly,Simultaneously cut off the alarm circuit. Need to check sensors and circuits or channels,After troubleshooting,The instrument enters normal monitoring state,The light automatically turns on normally.

AAlert andAdanger AThe warning light is yellow,AThe hazard light is red, used to indicateAAlarm status of the channel,When the amplitude value reaches the alarm value,This light is always on,Alarm relay action. This light works in conjunction with the alarm reset function of the instrument panel,After normal monitoring, press the reset button in the self-locking state,The light just went out. In self recovery state,This light will automatically turn off when the alarm is cleared.

BAlert andBdanger BThe warning light is yellow,BThe hazard light is red, used to indicateBThe alarm status of the channel. when

When the amplitude value reaches the alarm value,This light is always on,Alarm relay action. This light works in conjunction with the alarm reset function of the instrument panel,After normal monitoring, press the reset button in the self-locking state,The light just went out. In self recovery state,This light will automatically turn off when the alarm is cleared.

ABypass andBbypass yellow,The side street light is used to indicate whether the relay is in an alarm state, and the bypass light does not light up,

If an alarm value is set, when the display reaches the alarm value, the relay will activate and the bypass light will turn on

If an alarm value is set, the relay will not operate when the display reaches the alarm value.

● Button Description

On the instrumentFunctional OperationsWhen switching between different settings, store the set parameter values in the machine, and then enter the next parameter setting state;

On the instrumentFunctional OperationsWhen, shift the digital loop to the left1Position;

On the instrumentFunctional OperationsWhen, increase the corresponding digit1；

Clear the instrument's memory of alarm status and danger, reset the relay,During the parameter setting process, pressing this key will exit the current parameter setting.

2Parameter Setting Instructions

In the parameter setting state, the left display window on the panel displays the parameter category to be set, and the right display window displays the parameter status (parameter value) to be set.

2.1Parameter Settings:

press The key can cyclically change the number of digits required to set parameter values, while the corresponding digit's digital display flashes.

press The key can increase the current flashing value1Thus, the numerical values can be adjusted from0to9Cycle changes.

Note: At any time during the above setup process, pressing the reset button can terminate the current setup.

3System connection and usage

Diagram of Shaft Vibration Monitoring System:

Connection of terminal block:

Note:1Please do not use blank terminals.

2Three core shielded cable is used from the preamplifier to the instrument terminal, and the shielding layer of the shielded cable is only allowed to be connected to the instrument terminal

SHLDConnected, not allowed to be connected to the preamplifier terminalCOMConnect. (As shown in the system diagram earlier)

Attention:Insulation resistance between instrument ground and casing ground500VDC≥500MΩ allows the chassis ground to be directly connected to the control screen ground. Connection of signal transmission cables

Note:1When connecting the preamplifier of the eddy current sensor to the instrument or the preamplifier to the safety barrier, as well as the safety barrier to the instrument, the transmitted signal may be interfered with. Please ensure to use3Core shielded cable.

2Avoid routing signal transmission cables together with control cables and power cables.

3Install all cables in conduits or place them on cable racks.

4The recommended cable requirements are as follows: silver plated braided cable or flat shielded copper wire (core wire is soft copper wire).

Attention: We strongly recommend that users chooseHC1100The series eddy current sensors have detailed instructions and regulations in the sensor user manual, including installation, calibration, correct operation methods for connecting with instruments.

Installation of sensors:

In terms of φ5Or φ8For example, eddy current sensors must be installed near the linear midpoint voltage.

5. System verification and maintenance:Vibration calibration table

６．Unpacking and Installation

After opening the instrument packaging,Each instrument has one installation bracket, one certificate of conformity, and one user manual.

The installation position and structure of the instruments on the control cabinet are shown in the following figure:

Insert the fixing rods into the installation slots on the left and right sides respectively, and then tighten them with installation screws.

Attention:If users have special requirements for instrument functions, additional design and development are required. The model number will be marked with the word "non-standard" and a dedicated user manual will be provided with the instrument.