Schmalz VS-V-D-PNP,VS-D Series,VS-V-D-NPN,VS-V-D-PNP-C,VS-P10-D-PNP,VS-P10-D-NPN Operating Instructions Manual

Vacuum switch  Pressure switch

VS-D

Series

BA 30.30.01.00011_EN
Status 03.2014 / Index 01

1 / 3

J. Schmalz GmbH, Aacher Straße 29, D-72293 Glatten

Tel [phone], Fax -259

LED Output 1

LED Output 2 Up

Mode Display Down

Display:
Preset values in setting mode.
Vacuum level in measurement
mode.

The minus sign is not
displayed when pressure
unit bar, inHg or mmHg is
selected (VS-V-D).

Mode

Button to select the different modes.

Up & Down

Buttons to change settings.

LED Output 1
and Output 2

Switching indicator,
Output 1 = red, Output 2 = green.

Type

Selected

pressure unit

Display

Measured

pressure

Display Measured

p

atm

Hold for

min. 3 sec

Zero-point

adjusted

Push and hold both keys simultaneous

1x

Unit

Output 1

Output 2

bar

HYS, N.O.

HYS, N.O.

hold

1x

1x

bar

mmHg

kPa

inHg

1x

Unit

bar

mmHg

inHg

kPa

Symbol

Unit

psi

kgf/cm²

MPa

bar

Symbol

2x

wait 2 sec

After 2 seconds, the display is alternating between “ou I“

and the preadjusted operating mode.

Push the ”Up”- or “Down”-key until “HYS“ for the desired
switching mode „Hysteresis-mode“ is displayed.

1x

1x

wait 2 sec

1x

1x

4x

wait 2 sec

After 2 seconds, the display is alternating between

“ou 2“ and “HYS“.

Push the ”Up”- or “Down”-key until “CnP“ for the desired
switching mode “Window Comparator Mode“ is

displayed.

1x

3x

wait 2 sec

After 2 seconds, The display is alternating between “A-2“
and the preadjusted value.

Push the ”Up”- or “Down”-key until the desired value is
displayed.

Safety

These operating instructions contain important information on
the use of vacuum switches. Please read them carefully and
keep them in a safe place for future reference.

You must read and understand these operating instructions
before connecting and using the vacuum switch.

Always comply with these instructions and observe the safety
notes and warnings.

Warnings:

 The vacuum switch may not be used outside the specified

performance limits, since this can result in malfunctions and/or
destruction of the switch!

 The vacuum switch may not be used in explosion-hazard areas,

since it may cause fires and explosions!

 The switch may not be used for safety-relevant functions
 The switch may not be opened for any purpose (including

repairs)! Opening the switch may damage it and may also result
in injuries!

 The switch may be used only with

power supply units which provide
a protective low voltage (PELV) and with
reliable isolation of the supply voltage
in accordance with EN60204. PELV

Caution:

 Do not carry the vacuum switch by its cable, and do not pull the cable.
 Protect the switch against mechanical interference (tearing off).
 Switch off the supply voltage before connecting the switch.
 Do not expose the switch to splash-water.
 Never insert any objects (such as wires, tools, etc.) into the vacuum

connection of the switch.

1. Front panel

To adjust an other pressure unit see paragraph 6.3

5. Factory settings

The switch is delivered with following factory settings

This setting can be changed (programmed).
The programming is described in the following paragraph.

A built-in EEPROM retains data for a period of min. 10 years.
The data are min. 10.000 times rewritable.
N.O = normally open, N.C. = normal closed,
HYS = operating mode „Hysteresis mode“
The initial settings of the operating mode is shown
in the table in paragraph 8.

6. Setting of output configuration (N.O. or N.C.) and
pressure unit (e.g. bar).

To adjust the output configuration and the pressure unit, push
and hold the ”Mode”-key, the push the “Up“-key.

The display is alternating between “ou I“ and ”n.o.”

6.1 Selection N.O. or N.C. of output 1

To change the setting, push ”Up”- or “Down”-key.

Store the settings with the “Mode”-key

Now the display switches to the selection of output 2,
the display changes from ”ou 2” to ”n.o.”

6.2 Selection N.O. or N.C. of output 2

To change the setting, push ”Up”- or “Down”-key.

Store the settings with the “Mode”-key.

Setting switching point and hysteresis

To select the switching point of output 1 push ”Mode”-key 1x.

After 2 seconds, the display is alternating between “H-1“

and the preadjusted value.

To adjust the switching point, push the ”Up”- or “Down”-key
until the desired value is displayed.

Store the settings with the “Mode”-key.

Now the display switches to the selection of the hysteresis.
The display is alternating between “h-1“ and the preadjusted
value.

To adjust the hysteresis, push the ”Up”- or “Down”-key until
the desired value is displayed.

Store the settings with the “Mode”-key

2. Connecting power supply in normal operation

After connecting the power supply, in the display panel you can
see the presetted values.
When connecting the power supply do not push any key.

3. Zero-point adjustment

Adjust the zero-point only when the vacuum/pressure line is not
connected. To adjust the zero-point, push the ”Mode“-key at
least 3 seconds.

4. Clear All

If the switch was wrongly programmed, it can be set back in
to the factory settings.

All stored values are cleared. To accomplish this function,
disconnect the switch from the power supply. Whilst pushing the

”Mode“-key” and the ”Up“-key, connect the power supply again.

After connecting the power supply, the display shows “CLA“.

When you release the buttons, the presetted pressure unit is

displayed by “ -bA” resp. ”bA”.

Store the settings with the “Mode”-key.

Now the display switches to the selection of the pressure unit.

6.3 Adjust the pressure unit

To change the setting, push ”Up”- or “Down”-key.

Store the settings with the “Mode”-key.

Possible pressure units for VS-V-D

Possible pressure units for VS-P10-D

7. Adjusting the operating mode

7.1 Adjusting output 1
Example: Switch VS-V-D, output 1 has the operating mode

“Hysteresis-mode“.
switching point: -0,6 bar
hysteresis: 0,15 bar

Further information to the modes see paragraph 8.

Adjusting the operating mode

To select output 1, push ”Mode”-key 2x.

7.2 Adjusting output 2

Example: Switch VS-V-D, output 2 has the operating mode

“Window comparator mode“
Switching points are between -0,57 bar and -0,83 bar
(lower margin A=-0,57, upper margin b = -0,83)

Further information to the modes see paragraph 8.

Adjusting the operating mode

To select output 2, push ”Mode”-key 4x

Store the settings with the “Mode”-key.

Adjusting the lower and the upper margin

To select the lower margin of output 2, push ”Mode”-key 3x

When pushing the ”Mode“-key one time, the selected pressure

unit is confirmed and stored.

Store the settings with the “Mode”-key.

Vacuum switch  Pressure switch

VS-D

Series

BA 30.30.01.00011_EN
Status 03.2014 / Index 01

2 / 3

J. Schmalz GmbH, Aacher Straße 29, D-72293 Glatten

Tel [phone], Fax -259

1x

1x

Settings are switching point
H and hysteresis h.
Example: VS-V-D
H = -0.60 bar
h = 0.15 bar

N.O. (Normally Open)

0 bar

h

off on off

H

-1 bar

VS-V-D

mmHg

inHg

kPa

bar

H - 1

345

13.6

-46

0.46

h - 1

50

2.0

-7

0.07

H - 2

595

23.4

-79

0.79

h - 2

50

2.0

-7

0.07

VS-P10-D

psi

kgf/cm²

MPa

bar

H – 1

67

4.75

0.46

4.6

h - 1

10

0,70

0.07

0.7

H - 2

115

8.2

0.79

7.9

h - 2

10

0.7

0.07

0.7

Settings are lower margin A
and upper margin b.

Example: VS-V-D
A = -0.45 bar
b = -0.60 bar

N.O. (Normally Open)

0 bar

A

off

w

on on on

b

-1 bar off off

VS-V-D

mmHg

inHg

kPa

bar

A - 1

195

7.6

-26

0.26

b- 1

400

15.6

-53

0.53

A - 2

495

19.4

-66

0.66

b - 2

645

25.4

-86

0.86

VS-P10-D

psi

kgf/cm²

MPa

bar

A - 1

38

2.7

0.26

2.6

b- 1

77

5.5

0.53

5.3

A - 2

96

6.85

0.66

6.6

b - 2

125

8.90

0.86

8.6

1x

Peak value

1x

bottom value

hold

hold

hold

1x

1x

hold

1x

1x

Error

Message

Solution

Pressure during Zero­point adjustment was
higher than ±3% F.S.

Make Zero-point
adjustment again at
environment pressure.

Overcurrent at
Output 1

Loaded current
exceeds rated power

Overcurrent at
Output 2

of 180mA max.
Check output.

*

Applied pressure
exceeds measuring
range.

Apply pressure within
the measuring range.

EEPROM defective,
calibration storage
could not be read
anymore

Switch defective,
replace it

Now the display switches to the adjustment of the upper margin.
The display is alternating between “b-2“ and the preadjusted
value.

To adjust the upper margin, push ”Up”- or “Down”-key.

Store the settings with the “Mode”-key.

8. Operating modes of the outputs

The outputs can be operated in two different modes.
Each output can be adjusted independent of the other.
The modes are described in the following.

8.1 Hysteresis mode

At 0 bar, the digital output is off.
When the vacuum level increases up to the switching point H,
the digital output switches on. As long as the vacuum is higher
than -0.45 bar ( = 0.6 bar - 0.15 bar), the digital output stays on.
When the vacuum decreases and passes -0.45 bar, the digital
output switches off.
For the configuration of N.C. (Normally Closed), the output
switches reverse ( off > H, on < H-h).

Factory setting: Output 1 & 2 in Hysteresis mode

10. Rotate display

If the mounting position is twisted (rotated on head), the display
can be rotated . When connecting the power supply, push and
hold the buttons “Up” and “Down”.

Note that the decimal point lights up now at the upper
margin of the display. The functions keys retain their
function , that means that the “Up“-key shows downwards
in twisted mounting position !

11. Locking the set values

11.1 Standard versions

Whilst pushing the ”Mode“-key, push the ”Down“-key. The
switch is locked, which means that the set values can’t be
changed. On the display appears ”LoC”, the switch is locked.

When doing this once more, the switch gets unlocked and the
settings can be changed again.
On the display appears ”UnC”, the switch is unlocked.

11.2 Version with PIN code (VS-...-C)
The lock prevents unauthorised persons changing the settings.

A 3-digit number combination (PIN code) guarantees that only
people who know the PIN code (set by the operator) can change
the settings.

Activating the lock:
To activate the lock, press and hold the “Mode” button, then
press the “Down” button.

12. Error messages

* A display change from 0.00 to –FF or e.g. 0.01 at a
tmospheric pressure is not an error, but caused by
fluctuations in the air pressure.

This can be rectified by setting the zero point.
The zero point must also be set after performing a “Clear

all” (CLA).

8.2 Window Comparator mode

At 0 bar, the digital output is off.
When the vacuum level increases up to the lower margin A,
the digital output switches on. As long as the vacuum level is in

the ”window” between the lower margin A and the upper
margin b, the digital output stays on.

When the vacuum level becomes higher than the
upper margin b, the digital output switches off.
For the configuration of N.C. (Normally Closed), the output
switches reverse (A < off < b, A < on > b).

Factory setting: Output 1 & 2 in Window Comparator mode

9. Display of Peak and Bottom values

The built-in memory stores in normal operation the peak value
and bottom value since the switch was connected to the power
supply.
These will be displayed as follow:

To display the peak valve, push the ”Up”-key

Press the “Up” or “Down” button to change the right digit.

The value for the right digit is saved when you press the “Mode”

button. The centre digit flashes.

The centre digit can now be changed. Press the “Mode” button
again to change the left digit.

When the “Mode” button is pressed again, the PIN code entered
is saved. “LoC” appears on the display and the lock is activated.

Deactivating the lock:

To deactivate the lock, press and hold the “Mode” button, then
press the “Down” button.

“000” appears on the display and the right digit flashes.

The saved PIN code must be entered as described above for

locking. If the PIN code is correct, “UnC” is displayed and the

switch is unlocked.

If the PIN code is incorrect, “LoC” is displayed and the switch

remains locked.

If you forget the PIN code saved, the switch can be
unlocked in the SCHMALZ factory.

To display the bottom valve, push the ”Down”-key

Vacuum switch  Pressure switch

VS-D

Series

BA 30.30.01.00011_EN
Status 03.2014 / Index 01

3 / 3

J. Schmalz GmbH, Aacher Straße 29, D-72293 Glatten

Tel [phone], Fax -259

VS-V-D-PNP

VS-V-D-PNP-C

VS-V-D-NPN

VS-P10-D-PNP

VS-P10-D-NPN

Art.- #

10.06.02.00049

10.06.02.00270

10.06.02.00055

10.06.02.00056

10.06.02.00125

Pressure range

0  -1 bar

(0  -29.5 inHg)

0  -1 bar

(0  -29.5 inHg)

0  -1 bar

(0  -29.5 inHg)

0  10 bar

(0  145 psi)

0  10 bar

(0  145 psi)

Overpressure

5 bar

(72.5 psi)

5 bar

(72.5 psi)

5 bar

(72.5 psi)

16 bar

(232 psi)

16 bar

(232 psi)

Circuits

Pin Connection

1 V+
2 Switch Output 2
3 GND
4 Switch Output 1

Dimension / Colour Codes of Schmalz cables

1 Vacuum connection
2 Reference connection
3 M8 electrical connection

If the switch is used in a moist
environment, the reference
connection (for ambient or
reference pressure) must be
connected to a deaeration hose (i
3 mm) which leads to a dry
environment.

Technical Data

Media

Non corrosive gases and non lubricated air

Operation accuracy

 1% F.S.

Power supply

10.8  30 VDC (Protected extra-low voltage PELV),
Max. 10% ripple (P-P), Reverse voltage protection

Thermal error

 3% F.S. in range 0  50 °C (32  122 °F)

Response time

< 5 ms

2 Switch Output

N.O, or N.C. separate selective, max. 180 mA,
LED-indication on display, short circuit-proof,
PNP or NPN version

Current consumption

< 55 mA

Dielectric strength

1,000 VDC 1 min

Insulation resistance

> 100 M at 500 VDC

Output resistance NPN

780 K in open state

Interference emission

As per DIN EN 50081-1

Display

3-digit 7- segment LED

Immunity to interference

As per DIN EN 50082-2

Pressure units

VS-V-D: bar, mmHg, inHg, kPa
VS-P10-D: bar, psi, kgf/cm² ,Mpa

Operating temperature range

0  50 °C (32  122 °F)

Storage temperature range

-10  60 °C (14  140 °F)

Display resolution

VS-V-D: 0.01 bar, 5 mmHg, 0.2 inHg, 1 kPa
VS-P10-D: 0.1 bar, 1 psi, 0.05 kgf/cm², 0.01 MPa

Operating humidity range

10 ~ 90 % RH

Vibration resistance

1055 Hz 1.5 mm (0.06”), XYZ, 2hrs

Hysteresis

Hysteresis mode (0-100%) or Windows Comparator
mode separate selective

Shock resistance

10 G XYZ

Mass

25 g (0.88 oz)

Electrical connection

Connector M8, 4-pin

Immunity to interference: The following minimum operating quality is guaranteed
when there is interference from electromagnetic HF-Fields as per ENV 50140 and
ENV 50141: The switch point can be modified by max. 10 %.

Air connection

M5F and G1/8” M

Protection

IP 65 (without venting tube IP40)

2

4

1

3