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BOSCH REXROTH
VT-SSBA1-PWM-1X/V001/5
R901265633
Valve Amplifiers

Multifunct. valve ampl, PWM ampl

$121.00

BOSCH REXROTH

MATERIAL:  R901265633

SUMMARY:  Multifunct. valve ampl, PWM ampl

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The switching amplifier VT-SSBA1-PWM is directly mounted at the K4 connector of the valve.

It is supplied with 24 V direct voltage. If at wire 2 (enable "IN"), a high-signal is applied, the voltage profile is applied at the valve according to the functional diagram. If the enable input is switched, the status display LED is flashing "yellow".

Fast switching (V001)

As fast switching amplifier, the VT-SSBA1-PWM considerably reduces the switching time of standard directional valves in connection with 12 V solenoids.

On switching on, the solenoid is overexcited with 24 V by 100 %. Afterwards, the voltage is reduced and the required holding current is set via pulse width modulation.

The switching time table in section Technical data illustrates the assignment of the valves to the switching amplifier.

technical illustration-VT-SSBA1-PWM-1X/V001/5-Multifunct. valve ampl, PWM ampl

Energy saving (V002)

If 24 V standard directional valves are used, the switching amplifier considerably reduces the continuous current to save energy.

After a defined power supply time and the connected hydraulic switching of the valve, the system switches to pulse width modulation and the power is considerably reduced. This leads to a holding power under the power of a 24 V valve at 24 V supply voltage.

The table on energy saving in section Technical data illustrates the assignment of the valves to the switching amplifier.

PWM at V002: on/off ratio = 60/40

technical illustration-VT-SSBA1-PWM-1X/V001/5-Multifunct. valve ampl, PWM ampltechnical illustration-VT-SSBA1-PWM-1X/V001/5-Multifunct. valve ampl, PWM ampl

01

Connector switching amplifier with pulse width modulation (PWM)

VT-SSBA1-PWM

02

Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions)

1X

03

Quick switching of valves with 12 V solenoids

V001

Energy saving by power reduction at valves with 24 V solenoids

V002

04

Cable length 5 m

5

Cable length 10 m

10

Cable length 15 m

15

05

Further details in the plain text

*

01

02

03

04

05

VT-SSBA1-PWM

1X

/

/

*

General

Type / version

VT-SSBA1-PWM-1X/V001 VT-SSBA1-PWM-1X/V002

Component series

1X

Design

Plug-in connector

Electric

Type / version

VT-SSBA1-PWM-1X/V001 VT-SSBA1-PWM-1X/V002

Operating voltage

nominal

U

V

24

Lower limit value

UB(t)min

V

21.6

Upper limit value

UB(t)max

V

26.4

Control voltage

ON

U

V

10…30 (I = 2.5…12 mA)

OFF

U

V

<3.5

Clock frequency PWM switching amplifier

f

PWM operation 300…500 Hz

Switch-on pulse duration

t

ms

100…115 300…330

PWM duty factor

t

%

40 ±5 on 60 ±5 on

Holding current

Imax

A

2

Sonstige Angaben

Type / version

VT-SSBA1-PWM-1X/V001 VT-SSBA1-PWM-1X/V002

Connection to the solenoid

Standard

EN 175301-803

Connection cross-section

S

4 x 0.75 mm2

Anschlussart

Potted-in cable with open end, jacket: PUR-JZ black, wire insulation: PP black, green/yellow Potted-in cable with open end

Cable diameter

d

mm

6.5

Protection class according to DIN EN 60529

IP 65/IP 67

Conformity

According to EMC directive 2004/108/EG applied harmonized standards: EN 61000-6-2:2005, EN 61000-6-3:2007

Ambient temperature range

ϑ

°C

-20 … ​60

Storage temperature range

ϑ

°C

-20 … ​60

Weight

m

g

350

For applications outside these parameters, please consult us!

Switching times (with variant V001)

Comparison of 24 V coil (control standard 24 V signal) with 12 V coil (control viaVT-SSBA1-PWM-1X/V001…)

Additional valves on request.

 

If the connector switching amplifier is used, the power limit may be improved. The degree of improvement depends on the respective switching symbol of the valve.
Additional information on request.

Notice:

The specified switching times correspond to the time of signaling until a pressure change of 5 %. The switching times are specified for the same power limits as documented in data sheets 23178, 23340 and 23352 and for a horizontal installation position. The use of plug-in amplifiers V001 is not possible in connection with valves with amplified spring.

Switching times for 5-4WE10…5X valves (5 chamber)

Switching times for Z-4WE6…3X valves

Control spool

Coil

Switching time in ms

Control spool

Coil

Switching time in ms

ON

OFF

ON

OFF

J2

24 V

170

23

E63

24 V

27

14

12 V at V001

44

12 V at V001

15

X84

24 V

39

67

E68

24 V

27

14

12 V at V001

20

12 V at V001

15

X250

24 V

31

20

12 V at V001

16

X252

24 V

47

13

12 V at V001

17

Switching times for 4WE10…5X valves (3 chamber)

Switching times for 4WE6…6X valves

Control spool

Coil

Switching time in ms

Control spool

Coil

Switching time in ms

ON

OFF

ON

OFF

C

24 V

58

48

C

24 V

27

14

12 V at V001

26

12 V at V001

17

D

24 V

78

28

D

24 V

42

11

12 V at V001

29

12 V at V001

25

E

24 V

55

35

E

24 V

32

11

12 V at V001

22

12 V at V001

22

E67

24 V

84

31

E67

24 V

39

12

12 V at V001

24

12 V at V001

21

J

24 V

63

51

G

24 V

33

11

12 V at V001

28

12 V at V001

28

J2

24 V

47

31

J

24 V

37

17

12 V at V001

24

12 V at V001

17

Y

24 V

57

31

L

24 V

36

15

12 V at V001

23

12 V at V001

21

Y11

24 V

46

50

M

24 V

47

26

12 V at V001

28

12 V at V001

33

X7

24 V

62

13

12 V at V001

47

Notice:

The use of plug-in amplifiers V002 is not possible in connection with valves with amplified spring. Reduction of the coil temperature by at least 30 K

Energy saving (with variant V002)

Energy saving with valves with 24 V coils using plug-in amplifier VT-SSBA1-PWM-1X/V002…

 

5-.WE (5-chamber version)

Power consumption for Z-4WE6…3X valves

Control spool

Power in W at 24 V coil

Power in W at 24 V coil with V002

Control spool

Power in W at 24 V coil

Power in W at 24 V coil with V002

J2

30

18

E63

30

18

X84

E68

X250

X252

Power consumption for 4WE10…5X valves (3 chamber)

Power consumption for 4WE6…6X valves

Control spool

Power in W at 24 V coil

Power in W at 24 V coil with V002

Control spool

Power in W at 24 V coil

Power in W at 24 V coil with V002

C

40

24

C

30

18

D

D

E

E

E67

E67

J

G

J2

J

Y

L

Y11

M

X7

Wire 2: enable "IN"

Wire 1: Operating voltage "+UB" (+24 V)

Wire 3: Operating voltage "GND"

Wire GNYE: Protective earth "PE"

4/2-way version

Dimensions in mm

technical illustration-VT-SSBA1-PWM-1X/V001/5-Multifunct. valve ampl, PWM ampl

Dimensions in mm

technical illustration-VT-SSBA1-PWM-1X/V001/5-Multifunct. valve ampl, PWM ampl

The connector switching amplifier may only operated in accordance with the limits and applications defined in the data sheet. Sufficient distance to radios and mobile phones is required (>> 1 m). In case of overload or short-circuit, the output is de-energized. Before switching it on again, enable signal "IN" has to be switched at "ON" (< 3.5 V). There is no galvanic isolation between the input and output. If used as power reducer, the power in PWM operation is not sufficient for repeated switching of the valve after exceeding the power limit in switched state. In case of an error, the temperature of the valve solenoid may increase. Take external monitoring measures to ensure that the maximum admissible surface temperature of the solenoid is complied with. The VT-SSBA1-PWM is no safety-relevant part of a control system according to EN ISO 13849-1:2006. To comply with safety requirements, the following points must be observed: In case the safety function is required, the voltage supply and the enable input of the VT-SSBA1-PWM is to be switched off by a suitable switching element with appropriate reliability. If persons have to enter the danger zone with activated VT-SSBA1-PWM, additional measures for guaranteeing their safety have to be taken for the reasons specified above.