VT-VSPA1-D24 proportional amplifier
Features/Ordering data/Technical data List of content
Contents
Page
Circuit diagram/Terminal assignment diagram Operating principle/Applied mode
Unit dimensions/Notice items/Failure analysis
Ordering data
VT-VSPA1-D24-A1-V
四月英语怎么说-L
Amplifier applys for controlling
proportional compression valve with a coil
Supply power:direct current 24V The maximum output rated current:A1=1.5A A2=2.5A A3=3.5A
Input signals:
V=0-10V/0-5V A=4-20mA/0-20mA P=pul0-23767Hz
Packed form:L=aluminium box
Technical data :
亮晶晶的拼音operating voltage : U B 24VDC +50% -25%
operating range
-- upper limit U B(t)max --low limit U B(t)min Power consumption P C The maximum output current Imax lf restroring fu I F control input signals Ramp time UP/DOWN UP=0.02-5s DOWN=0.02-5s(adjustment by inner potentiometer) load impedance 2.2-40Ω
Temperature of operating circumstance －10～75℃Temperature excusion(max) 0.1mA/℃
北京雅思培训Ampifier dimenions mm 104X28X95mm
Weight m 0.1Kg
R A1=1.5A A2=2.5A A3=3.5A A1=2.5A A2=3.5A A3=4.5A Features/Ordering data/Technical data
1Features
VT-VSPA1-D24
analogue Vi=0-10V Ai=4-20mA pul Pi=0-32767Hz
草莓族
50VA 18V 36V Outline drawing:
tyle
int 234--Be applicable to control all proportional valves ,proportional --Electrohydraulic propotional valve coil short circuit protection.
compression relea valves of direct-acting ,pilot.discharge
types,but without electric feedback and electrohydraulic proportional plumger pump as also .Samples prent only drive a proportional valve coil.
-Input signals:analog quantity 0-10V/4-20mA pul 0-32767Hz --Providing a +12V/50mA power for exterior potentiometers of 2-50K controlling mode.
--Ramp generator: be able to adjust ritime and falltime parately.--Rever power protection,building in lf-restoring fu,no
replacement required. If failure remove, the amplifier recover normal work automaticly.
℃℃
+24
0V
P+
P-
VI
PI
+12
IN:POWER
OUT:SOL
IN:0-10/4-20mA IN:0-32762HZ COM
OUT:+12V/50mA
1. +24 = direct current power+24V
4. P- = proportional valve coil
2. 0V = direct current power 0V
5. VI = Analog input port (0-5V / 0-10V / 4-20mA)
3. P+ = proportional valve coil
6. PI = pul input port (0-32767Hz)
7.GND = common point of signal input
8.+12 = Output +12V/50mA (As power for potentiometer)
1.DITHER = flutter frequency (fixing 200HZ,adjustable function optionally)
2.DOWN = fall ramp time (the resource time of 100%-0% current valve is 0.02-5s,acceleration ramp time
英文写作
3.UP =
4.MAX =
5.MIN = Terminal function :
雄安县
Potentiometer functions :
Led function :
1.POWER = power led
2.ALM = failure alarm indication
For getting the curretnt valve we need ,when adjusting the maximum current and initial current ,it needs
to adjust repeatly due to their less mutual drawing action Remarks: (proportional valve coils both can exchange each other,not existing negat or positive.If joining ampmeter,P+ connects ampmeter's positive pole.Converly P- connects negative pole.)
under clockwi rotation)
ri ramp time (the resource time of 0%-100% current valve is 0.02-5s,acceleration ramp time under clockwi rotation)
maximum tting (tting up the maximum current for the valve we need,increasing ttings under clockwi rotation initial current valve (pilot current Imin with no given signal ,increasing offt current under clockwi rotation
VT-VSPA1-D24 proportional amplifier
Circuit diagram/Terminal assignment diagram
1.using outward potentiometer input for
forrestgumpcontrolling mode
VI (analog input)GND
PI (pul input )GND
0-32767Hz pul
GND
2.using analog input for controlling mode
3.using pul input for controlling mode
P+
P-
proportional valve coil
4.ries connection direct current for monitorin mode
Instruction:
The range of outward potentiometer resistance valve:2k-50k
Instruction:
supplying analog signal 0-10V/4-20mA from D/A module of PLC or nsor
四六级查分Instruction :
Amplifer receives pul within range of
0-32767,which is supplied bytypes of system such as PLC or SCM .for example ,if plc offers plu , plc choos the output way of transistor,YO connects to PI port and the GND of plc connects GND of amplifier .
Instruction :
VT-VSPA1-D24-A1 Connects ampmeter of 24VDC VT-VSPA1-D24-A1 Connects ampmeter of 3-5ADC VT-VSPA1-D24-A3 Connects ampmeter of 5ADC
Unit dimensions/Notice items/Failure analysis
Dimensions unit:mm
大学英语6级成绩查询
Notice Item:
--When supplying, the parameters of amplifier have been t as follow: subjecting to internal resistance of
electrohydraulic proportional valve (10Ω) and VT-VSPA1-D24-A1.
Maximal current Imax=800mA Intiial current Imin=100mA Ri ramp time up=0.02s
Fall ramp time down=0.02s Flutter frequency dither=200Hz
--Allowing to plug in or take down the amplifer only when power cut off
--When connecting proportional valve coil,don't u lf-lscillating diode and plug with display lamp
--The input cables of Analog signal and pul signal must be shield .suggestion: Shield cables of proportional valve co well.
--As amplifier with built-in lf-restoring fu ,replacing fu is needless. Amplifier recovers normal work after
failure has removed
Failure analysis:
If amplifier work wrongly, check it as the following :
1.if is operating voltage normal ? Measure terminal between +24V and 0V
2.if is operating voltage inside normal? Measure terminal between +12V and GNDV
3.if does port of input signal exist signal ? Measure VI/PI/GND
4.if does adjust potentiometer inside beyond the maximum or low the minimum range
