Digital Pressure Sensor with Solenoid Valve Control＋MVS

Instruction Manual

４．Zero resetting

２．Suction/Blow‑off confirmation output(OUT1)setting

MVS‑201 Series
REV 2.5B4‑J

VACUUM TECHNOLOGYMVS

Blow‑offV 1

Press thekey twice and wait for 3 seconds
after having released it.

MODE

Ｈ‑ｄMVSV 1

ｈ‑ｄ

Press theV 1

Select a desired value for "H‑v" at which todrive on OUT1 during suction, using the
key and set it with thekey.

key once and wait for 3 seconds after having release it.

「Suction mode」

MODE：Suction mode 2 (OFF by timer; vacuum solenoid valve OFF
after expiration of timer)

Selecta suction mode with the
key and set it with thekey.

１．
「 Blow‑off time」ｂt

Select a desired value for hysteresis range"h‑d"during blow‑off, using the
key and set it with thekey. Note 2)This sets a time during which to keep the blow‑off solenoid valve
ON in response to the blow‑off command signal. It can be set
between 0.00 and 9.99 seconds. Beyond 9.99 seconds, "At"
(automatic) is displayed. If "At" is set, Blow‑off solenoid valve
turns off synchronously with the activation (ON) of OUT1 at thetime of blow‑off. ("bt" is common to all suction modes.)This sets a delay time from the activation (ON) of OUT1 to thedeactivation(OFF) of vacuum solenoid valve after vacuum hasreached the set point during suction.
This can be set between 0.00 to 9.99 seconds.
("t1" can be set when the suction mode is 1 or 2.)MVS

V 1MODEBlow‑offHighon suction

Low

Suctionsuction at a LOW status(Lo)Blow‑offon suctionLowsuction at a HIGH status(Hi)The last‑end digit of a decimal point on LED display lights up during suction indicated by
Suction/Blow‑off command signal. Green LED is lit when vacuum solenoid valve is ON.

Operation example of suction mode 2(to turn off the vacuum solenoid valve after expiration of timer)
Suction command signal turns on the vacuum solenoid valve to generate vacuum
so that suction can be started. Once OUT1 becomes ON upon reaching thepreset vacuum, the vacuum solenoid valve turns off after an elapse of "t1."
Thereafter, vacuum decreases, but the vacuum solenoid valve does not turnon again even after the deactivation (OFF) of OUT1. Blow‑off commandsignal turns off the vacuum solenoid valve first and after an elapse of "t2,"turns on the blow‑off solenoid valve which remains ON during a period of "bt."Operation example of suction mode 1 (to maintain suction by timer)

Suction command signal turns on the vacuum solenoid valve to generate vacuum
so that suction can be started. Once OUT1 becomes ON upon reaching the preset
vacuum, the solenoid valve turns off after an elapse of "t1." Thereafter, vacuum
decreases, causing the vacuum solenoid valve to turn on again prior to thedeactivation (OFF) of OUT1 to maintain the vacuum.
(Vacuum solenoid valve subsequently turns on/off repeatedly.)
Blow‑off command signal turns off the vacuum solenoid valve first and after
an elapse of "t2," turns on the blow‑off solenoid valve which remains ON
during a period of "bt."High
Blow‑off
SuctionHigh
Suction/Blow‑off
Suction/Blow‑off
Lowcommand signal
Lowｔ２
command signalＯＮVacuum
solenoid valve
Suction/Blow‑off
confirmation output(OUT1)

ｂｔＯＦＦ

Blow‑offsolenoid valve

ＯＦＦVacuumsolenoid valve

ＯＦＦSuction/Blow‑off
confirmation output(OUT1)

ＯＮＯＮｔ１
ＯＮｔ１
ＯＮ＋ＯＮ(Ｈ‑ｄ)
ＯＦＦ

Atmosphericpressure(Monitoring peak value)

ＯＦＦＯＦＦ

Suction command signal turns on the vacuum solenoid valve to generate vacuum
so that suction can be started. Upon reaching the preset vacuum,
OUT1 becomes ON. Vacuum solenoid valve remains ON regardless of the statusof OUT1. Blow‑off command signal turns off the vacuum solenoid valve firstand after an elapse of "t2," turns on the blow‑off solenoid valve which remains
ON during a period of "bt."６．Output mode and pressure unit setting
key while theHighLow

SuctionSelect a desired output mode for vacuum
solenoid valve using thekeyand set it with thekey.

ＯＦＦBlow‑offsolenoid valve

ＯＦＦVacuumsolenoid valve

ＯＦＦ

Suction/Blow‑offconfirmation output(OUT1)＋ＯＮＯＮ

ＯＮ(Ｈ‑ｄ)Atmosphericpressure

suction from HIGH to LOW
suction from LOW to HIGH

７．Alarm list
OUT1 overcurrent Output current
exceeding 125 mA
Zero reset error Zero resetting atover 3% of F.S.
System error
Internal failure
Rated range fullCheck the load.
Release atmospheric
air during zero resetting.

Pressure beyond the range

Back pressure full scale Pressure beyond the back pressure range

８．Names and functions
Vacuum solenoid valve LED (green)

PortUP key

OUT1 LED (red)Black: Output (OUT1)(Monitoring peak value)

ＯＦＦＯＮ

Blue: 0V
Suction/Blow‑off signal display

Solenoid valve
connector

１：Vacuum solenoid valve +V
２： 〃GND
３：Blow‑off solenoid valve +V
４： 〃GNDOutput type９．
Specifications and model
ＯＦＦＯＮ(Ｈ‑ｄ)

ＭＶＳ−２０１−ＸＣ

Applicable fluid

Noncorrosive gas−１０１〜５００ｋＰａ

Pressure range
RepeatabilityＯＮ(Ｈ‑ｖ)
Ｐ‑ｖ(Monitoring peak value)

Ｎ：ＮＰＮ
Ｐ：ＰＮＰ

ＭＶＳ−２０１−ＸＣ
Model

Display resolution

ＯＦＦ−Mode key

ＯＦＦｂｔ

Atmosphericpressure

Ｐ‑ｖ

White: Suction/Blow‑offcommand input

MODEＯＮ

Brown: +V (DC10.8‑30V)MVS

DOWN key

ＯＦＦＯＦＦ
ＯＮ(Ｈ‑ｖ)−

Suction/Blow‑offcommand signal

Output mode
Normal open
(normally,non‑current supplied)
Normal close(normally,current supplied)ｔ２ＯＮＯＦＦ

Select a desired logic of a suction/blow‑offcommand signal with thekey andset it with thekey.

ＯＮＯＮ

ｔ１

Select a desired output mode for blow‑offsolenoid valve using thekey andset it with thekey.

Blow‑offＯＮｂｔ

key is pressed.

Select a desired output mode for OUT1,using thekey and set itwith thekey.

V 1

ＯＦＦＯＮ(Ｈ‑ｖ)−ＯＮ

Operation example of suction mode 3 (to keep vacuum solenoid valve ON)

Suction/Blow‑offcommand signal

ｔ２＋ＯＦＦＰ‑ｖ

ＯＮTo reset it, press thekey again
by keeping thekey depressed.
is displayed to release thesecurity lock.

１２ ３４

Blow‑offsolenoid valve−Suction/Blow‑off
confirmation output(OUT1)

１．
「 Energy saving mode」
With this mode set at ON, ten‑second absence of key operation,puts out LED display and reduces current consumption.
The display can be restored by pressing any key.

Blow‑off

Suction

MODE

Press thekey while thekey is pressed.
is displayed to inhibit
further key operation.

Suction２．
「 Monitoring peak value」:Ｐ‑ｖ
In the case of the inability of vacuum to exceed the "P‑v" during suction,
Select the energy saving mode between"ALP" is displayed intermittently to warn of decreased vacuum due to
ON and OFF using thekey andthe deterioration of pad or the like. This warning display can be cleared
set it with thekey.
by pressing any key. "P‑v" can be set within a range of H‑v to the lower
limit.With this value set at OFF, peak monitoring is not executed.
Select a desired value for monitoring３．
「 Suction reach time」:ｖｔ
peak value "P‑v" using thekeyIf OUT1 does not become ON within the preset "vt" after the activationand set it with thekey.
(ON) of vacuum solenoid valve,"ALv" is display intermittently to warn of decreased vacuum.
Select a desired value for suction
４．
「 Blow‑off reach time」:ｄｔreach time"vt" using thekey
If OUT1 does not become ON within the preset "dt" after the activationand set it with thekey.
(ON) of blow‑off solenoid valve, "ALd" is displayed intermittently towarn of decreased blow‑off pressure.
Select a desired value for blow‑off
Both "vt" and "dt" can be set between 0. 00 (OFF) and 9.99 seconds.
reach time "dt" using thekey
If they are set at OFF, time monitoring is not performed.
and set it with thekey.
"ALv" and "ALd" displays are automatically cleared by the next
Suction/Blow‑off command.
They can also be cleared by pressing any key.

Suction is started at the HIGH(supply voltage or open)to LOW (0V) trailing edge ofstart‑up/down command signal. Maintain the low level during suction. Blow‑off iscarried out at the low‑to‑high leading edge.It is also to reverse logic of a Suction/Blow‑offcommand signal. In this case a suction ‑operation is actuated at a start ‑up from LOW to HIGH ,and a blow‑off operation at a a start‑down from HIGH to LOW.
SuctionPress thekey three times and waitfor 3 seconds after having released it.

V 1

MODE

３．Energy saving mode, monitoring peak value, Suction/Blow‑off reach time setting

Suction/Blow‑off command signal timing chart

HighＨ‑ｖ

Press the「 Delay time 2」ｔ２
Select a desired value for "t2" with ３．
thekey and set it with theThis sets a delay time from the detection of blow‑off commandkey.
signal to the activation (ON) of blow‑off solenoid valve.
It can be set between 0.00 to 9.99 seconds.
("t2" is common to all suction modes.)Suction/Blow‑offcommand signal

MVS

V 1ｈ‑ｖ

Note 1) With "H‑d" set at OFF (beyond the upper limit), OUT1 outputs no signal during blow‑off.
If blow‑off time "bt" is set at automatic (At), H‑d cannot be set at OFF.
Note 2) With "H‑d" set at OFF, h‑d cannot be set.

２．
「 Delay time 1」ｔ１
Select a desired value for "t1" withthekey and set it with thekey.

５．Security lock setting and resetting
MVS

Select a desired value for "H‑d" at which todrive on OUT1 during blow‑off, using thekey and set it with thekey. Note 1)：Suction mode 3 (ON; vacuum solenoid valve kept ON)

Select a desired value for "bt" withthekey and set it with thekey.

Atmosphericpressure

Select a desired value for hysteresis range"h‑v" during suction, using thekeyand set it with thekey.

：Suction mode 1 (ON by timer; suction maintained by the timer)

MODE

Keep pressing the mode key for over 3 seconds
for zero resetting. This should be done underatmospheric pressure within ± 3% of F.S.

１．Suction mode and timer setting
MVSV 1MODE

Response time
Specific output
Solenoid valve output
Supply voltage

１ｋＰａ
Within ± 0.3% of F.S. and ± 1 digit
2.5msec
NPN or PNP open collector output at 1 point (max. 125 mA)

NPN transistor output at 2 points(max. 250 mA)
DC10.8‑30V, Ripple (Vp‑p) 10% or less Note 1)

Note 1) It must be consistent with the solenoid valve drive voltage.