VS1 (XP) Vibration Monitor User`s Manual - Electro
Contents
1. OVER a Set the DELAY to minimum 1 second b Start the machine to be monitored Note The VIBRATION LED should light indicating vibrations above the VS1 minimum detectable level 0 1 in s Wait for any all transient vibrations to die out c Slowly increase the TRIP POINT setting until the ALARM LED darkens if already alarmed d Slowly decrease the TRIP POINT setting until the ALARM LED begins to light This setting is your current vibration level Note These last two steps may need to be repeated Adjust the TRIP POINT slowly since there is a minimum of second response time e Increase the TRIP POINT to a value proportional to the current vibration level For example if the current vibration level is 0 5 in s and you want the VS1 to alarm at 40 above that set the trip point to 0 7 in s 3 Set the DELAY This may also have to be determined experimentally depending on the duration of vibration transients to be ignored 4 Re attach the cover tightly Note There is a 2 3s delay from application of DC power to becoming operational to allow internal circuitry to charge Free Catalog and Application Assistance GEA Visit us online 1 800 328 6170 ELecTRO SENSORS Wwww electro sensors com 1SO9001 2000 WJ 6111 Blue Circle Drive Minnetonka MN 55343 USA Superior Systems Solutions Phone 952 930 0100 Fax 952 930 0130 Specifications LED Indicators Isolated NPN Output NPN output option Power Green Current 50mA V2. the alarm level threshhold in inches per second RMS Delay Dial 0 0 0 0 eecceecsssescsseeeeeee Sets the alarm delay in seconds An alarm occurs DELAY seconds after detecting vibration magnitude at alarm level The vibration magnitude must remain at alarm levels for at least DELAY seconds for an alarm to occur NPN Output Option The isolated NPN output is connected for failsafe operation NPN on when powered and not alarmed It operates as follows Conducting ON when VS1 is powered and not alarmed Not conducting OFF when VS1 is unpowered or alarmed Relay Output Option The isolated SPDT relay is connected for failsafe operation relay is energized when VS1 is powered and not alarmed The contacts operate as follows N C Disconnected from COM energized when VS1 is powered and not alarmed Connected to COM not energized when VS1 is unpowered or alarmed N O Connected to COM energized when VS1 is powered and not alarmed Disconnected from COM not energized when VS1 is unpowered or alarmed Settings With the VS1 XP tightly mounted the cover removed and 24 Vdc power applied complete the following steps 1 Set the ALARM OVER UNDER switch as required 2 Set the TRIP POINT Ifthe desired RMS velocity alarm value is known set the trip point to that value otherwise it can be set experimentally relative to your machine s current acceptable vibration level The following gives an example ALARM set to
3. I l l TB2 1 N C ea fe i es S l Sinking resistive load Sinking inductive load Sourcing resistive load The relay output is electrically The NPN output is electrically isolated from the VS1 DC power inputs and case The NPN output may be isolated from the VS1 DC power externally connected to the same supply as the DC power inputs or to a different supply inputs and case Useful Conversion Formulas Definitions CPM Machine cycles per minute f Frequency Stroke Max machine travel peak to peak Disp Peak displacement from center position Stroke 2 Formulas f frequency in Hz CPM 60 Vel rms velocity in in s 4 44 Disp f Disp must be in inches f must be in Hz Accel peak acceleration in g s 0 103 Disp f Disp must be in inches f must be in Hz Accel peak acceleration in g s 0 0231 Vel f Vel__ must be in in s rms f must be in Hz Note All formulas based on sinusoidal motion Free Catalog and Application Assistance GA Visit us online 1 800 328 6170 ELecTRO SENSORS wrww electro sensors com ISO9001 2000 6111 Blue Circle Drive Minnetonka MN 55343 USA Superior Systems Solutions Phone 952 930 0100 Fax 952 930 0130
4. VS1 XP Vibration Monitor User s Manual OVER VIBRATION vsi P N 535 001400 REVA ELECTRO SENSORS INC Part Number 990 001102 Rev C 052907 Free Catalog and Application Assistance Visit us online 1 800 328 6170 ELECTRO SENSORS Wwww electro sensors com ISO9001 2000 6111 Blue Circle Drive Minnetonka MN 55343 USA Superior Systems Solutions Phone 952 930 0100 Fax 952 930 0130 Description The VS1 XP Vibration Monitor combines sensor circuitry and isolated npn or relay output in a explosionproof housing It monitors the machine surface to which it is attached and alarms when vibration levels either exceed or fall below the trip point setting depending on the ALARM switch setting Operator Interface Dimensions The setting dials and switch are located under the housing cover Remove the cover to change settings and replace when finished Cover Attached window cover shown 6 000 6 750 DC Power t DC Power ea af case Ground 3 4 NPT 4 750 2 000 Installation Orientation VS1 XP VIBRATION MONITOR ELECTRO SENSORS INC 6111 Blue Circle Dr Minnetonka MN 55343 1 800 328 6170 C The VS1 XP senses vibration along the axis indicated by the SENSING DIRECTION arrows labeled on the housing Ori
5. ent the VS1 with the arrows parallel to the vibration axis to be monitored Mounting Rigid tight attachment is necessary for any vibration sensing device Any looseness or rocking will permit error causing resonance Therefore the VS1 XP must be tightly and securely bolted to the measurement surface at both mounting tabs Terminal Connections Power TB1 1 Case TB1 2 DC Power TB1 3 DC Power Free Catalog and Application Assistance 1 800 328 6170 ISO9001 2000 6111 Blue Circle Drive Minnetonka MN 55343 USA Output NPN Output Option TB2 1 Emitter TB2 2 Collector Protection Cathode TB2 3 Collector ELECTRO SENSORS Superior Systems Solutions Relay Output Option Relay N C Relay Common Relay N O Visit us online www electro sensors com Phone 952 930 0100 Fax 952 930 0130 Operation Power LED Green esses Indicates power applied to the VS1 Vibration LED Green 0 Indicates vibration at or above the minimum detectable level 0 1 in s nominal Alarm LED Red c ccssesssesssesseesees Indicates an alarm condition Note Alarms are not latching an alarm condition persists only while the vibration magnitude stays at alarm levels Alarm OVER UNDER Switch Selects the alarm functionality Over Alarms while vibration magnitude is above the trip point setting Under Alarms while vibration magnitude is below the trip point setting Trip Point Dial eens Sets
6. ibration Green indicates vibration above Vc max 50 mA 1 0V min detectable level 0 1 in s rms BV o breakdown volts 100V Alarm Red indicates output in alarm state P max power over temp 100 mW lc o max leakage over temp 100 pA Settings Ranges Failsafe Transistor ON when powered and Alarm trip point 0 1 2 2 in s 2 5 55 mm s rms not alarmed Alarm delay 1 10 seconds Enclosure Ratings Alarm Over under select switch o z I Limi Class I Div 1 Group C D perational Limits toh C US Class I Groups E F G z Min vibration frequency 3db UL File E249019 Max vibration acceleration 50 g peak NPN option LISTED 12 g peak Relay option CSA C22 2 No 30 M1986 file LR11716 FM 3600 amp 3615 file 2Y4A5 AE Power Requirements NEMA 3 4 4X 7 B C D 9 E F G Voltage 24 Vdc 18 30 Vdc Current max 30 mA 24 Vdc Ose a Note Optional 24 Vdc 130 mA power supply available consult factory NPN Option 40 C to 85 C 40 F to 185 F Relay Relay option Relay Option 40 C to 65 C 40 F to 149 F Type SPDT Mechanical DC Rating 5A 30 Vdc Weight AC Rating 3A 290 Vac Window cover option 5 90 Ib 2 68 kg Failsafe Relay energized when powered Blank cover option 5 70 Ib 2 59 kg and not alarmed Specifications subject to change without notice NPN Output Schematic and Possible Connections Relay Output Schematic NPN Output Option Relay Output Option 1 TB2 2 COM I
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