VALVE AMPLIFIER VT-MSPA1-2X/A5/000/000

Manufacturer: Bosch Rexroth

Material #: R901439034

Model : VT-MSPA1-2X/A5/000/000

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth VT-MSPA1-2X/A5/000/000 (R901439034) is a sophisticated valve amplifier module designed to control proportional valves and pump controls without electrical position feedback. It is specifically tailored for valves with solenoids and is equipped with stored characteristic curves of Rexroth valves, enabling optimal valve performance through simple pushbutton adjustments. The module provides diagnostic capabilities through LED status indicators and measuring sockets, which allow for monitoring parameters, command values, and actual values. This device features separate ramp generators for precise control of the command value incline, a command value attenuator for adjusting the signal strength, and a characteristic curve generator to fine-tune the valve's operation according to hydraulic and control technical conditions. The current controller ensures the solenoid current matches the command value by compensating for any discrepancies. Installation is made easy with its DIN rail compatibility, and electrical connections are established via screw terminals. The unit operates on a supply voltage of 24 VDC and includes an internal power supply with current peak prevention and reverse-polarity protection. For enhanced functionality, the VT-MSPA1-2X/A5/000/000 offers a digital input that can be configured for various functions such as enabling operation or ramp on/off control. Additionally, there is a digital output that signals readiness when operational conditions are met. The design of this module ensures reliability with its clock generator adjusting the output stage's clock frequency based on command values or operating voltage. The power output stage delivers pulsed solenoid current while being protected against short circuits. Overall, this product stands out for its comprehensive feature set that enables precise control over proportional valve systems without position feedback in various applications.

$637.00 USD

Availability: 2 In Stock

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Qty: Delivered as early as December 26, 2024 when ordered in

VALVE AMPLIFIER VT-MSPA1-2X/A5/000/000

Valve amplifier for proportional valves with 1 solenoid without position feedback

Characteristic curves of the Rexroth valves stored in the device. Valve optimization via push-buttons. Diagnosis: LED status and measuring sockets for parameters, command values and actual values. Ramp generators can be set separately.

Unpacked Weight: 0.28 kg

Command value input 0 ... ±10 V oder 4 ... 20 mA Reverse polarity protection of the operating voltage Ramp generator up and down is separately adjustable Zero point setting Command value adjustment Characteristic curve generator Clocked power output stage Output short-circuit-proof LED status display Measuring sockets for: actual current value, internal current command/setting

General

The amplifier modules are intended for assembly on top hat rails. The electrical connection is established via 3 tension spring plug-in connectors. The supply voltage is 24V DC.

Power supply unit [1]

The internal power supply unit has a making current limiter to prevent current peaks. Additionally, inverse-polarity protection is integrated.

Command value, command value summing device [3]

The “internal command value” comprises:

the “external command value”, connected at the input of the differential amplifier [2] the zero point offset [4]“Z/B” in the standard – setup adjustable

For pressure valves, a positive command value results in a pressure increase at the valve.

For valves 4W..., the following applies:

Via solenoid B, a command value of 0 ... +10 V or 12 ... 20 mA results in a flow in the valve from P to A and from B to T.

Via solenoid A, a command value of 0 ... -10 V or 12 ... 4 mA results in a flow in the valve from P to B and from A to T. In the expert set-up, inversion of the command value is possible [5] (see RE 30232-B).

In normal operation, the “internal command value” can be measured at the “v” measuring socket.

Ramps

A ramp limits the incline of the command value. You can choose between a single ramp [6] (one time for all ramps, default value) and a 4Q / 2Q ramp [7] (different times for the possible ramps). The 4Q / 2Q ramp times are set in the expert setup. The characteristic curve generator [9] does not influence the ramp time.

Command value attenuator “G” [8]

By means of the command value attenuator, the command value can be reduced.

Characteristic curve generator [9]

In the characteristic curve generator, the pre-set valve characteristic curve can be adjusted to the actual hydraulic and control-technical conditions.

The following can be adjusted in the expert setup:

Pilot current “B” Step “S” Maximum current “G” (with VT-MSPA2 separately possible for solenoid A and B)

Current controller [10]

The solenoid current is recorded, compared to the command value in the current controller and the difference is compensated.

Clock generator [11]

The clock generator creates the clock frequency "f" of the output stage. With Rexroth valves, the clock frequency sometimes changes dependent on the command value and/or the operating voltage.

Power output stage [12]

The current output stage creates the clocked solenoid current for the proportional valve. The solenoid current is limited to the maximum admissible current per output, depending on the set valve. The output stages are short-circuit-proof. With an internal interference signal or in case enable is missing, the output stage will be switched off.

Digital input [13]

The input DI can be set to four different functions:

1. Enable (factory setting) 2. VT-MSPA1 1) without function (permanent enable) 2. VT-MSPA2 command value inversion (permanent enable) 3. Ramp on/off (permanent enable) 4. Single or quadrant ramp (permanent enable)

Digital output [15]

Device notifies ready for operation if there is no cable break, no internal error and UB >=UBmin .

1) Behavior with valve 4WRP…SO855 as with VT-MSPA2

Valve amplifiers
Suitable for controlling proportional valves and pump controls without electrical position feedback
For valves with 1 solenoid
Communication: Command value input 0 ... 10 V
Installation on DIN rail

Data Sheet	Download Data Sheet
3D CAD	Download 3D CAD
3D CAD	Download 3D CAD
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual

Electrical connection description	Screw terminals
Productgroup ID	9,10,11,12,13,14
Conformity description	CE – electromagnetic compatibility 2014/30/EU
Electrical connector	Screw terminals
Supply voltage	24 VDC
Design	Module
Weight	0.28
Connectivity	Analog, command value 0 … 10 V
Conformity	CE

01	02		03		04					05
VT-MSPA		‒	2X	/		/	000	/	000	*

01	Valve amplifier for proportional valves without electrical position feedback, Analog, Modular design	VT-MSPA
02	For proportional valves with 1 solenoid	1
02	For proportional valves with 2 solenoids	2
03	Component series 20 ... 29 (20 ... 29: unchanged technical data and connections)	2X
04	Voltage command value (1 solenoid 0 ... +10 V / 2 solenoids 0 ... ±10 V)	A5
04	Current command value (4 ... 20mA)	F5
05	Further details in the plain text	*

Accessories (can be ordered separately):

Shield set for the installation with shielded lines see chapter Accessories.

General

Component series		2X
Design		Modul

Voltage supply

Operating voltage	nominal 1)	V	24
	Lower limit value 2)	V	18
	Upper limit value	V	36
	maximum admissible residual ripple (40 … 400 Hz) 3)	Vpp	2.5
Power consumption	max.	W	< 48
Current consumption	max.	A	< 2
Current switch-on	max.	A	< 4
External fuse		A	3.15 time-lag

1)	+40 % ... –20 %
2)	With valves with a maximum solenoid current of 0.8 A, the lower limit value is 21 V
3)	Observe the admissible limits

Analog input

Command value	1 solenoid (0 ... 100 %)		4 ... 20 mA
	1 solenoid (0 ... 100 %)		0 ... +10 V
	2 solenoids (0 ... ±100 %)		4 ... 20 mA
	2 solenoids (0 ... ±100 %)		0 ... ±10 V
Voltage (differential input) 1)		kΩ	200
Current input 2)		Ω	100

1)	Input resistance
2)	Load resistance

Analog output

Solenoid current (Maximal value depending on the selected valve)	IA	V		0 ... 0.5 (mV ≙ mA) mA
	IB	V		0 ... 0.5 (mV ≙ mA) mA
load impedance		min.	Ω	1000

Digital input

On (active) 1)	V	11 ... UB
Off (inactive)	V	-3 ... 5

1)	RE > 50 kΩ

Solenoid outputs

Solenoid current	max.	A	2.7
Clock frequency 1)	Setting range	Hz	95 ... 505
Solenoid output	other properties		Short-circuit-proof, clocked
Cable length	for 1.5 mm2	m	50

1)	Depending on the selected valve

Adjustment options

Zero point calibration	%	± 10
Command value attenuator 1)	%	70 ... 110
Ramp time up/down	s	0.01 … 30
Step-change height	%	0 ... 50

1)	Applies to a command value of 100 %

Measuring sockets

Command value/setting	v	V	0 ... ±10
Actual current value	IA	V	0 ... ±2.5 (mV ≙ mA)
Actual current value	IB	V	0 ... ±2.5 (mV ≙ mA)
Additional notices			See Operating instructions

Supplementary information

Start-up time			s	< 1
Type of connection				12 spring-type terminals, detachable
Type of protection according to EN 60529				IP20
Ambient temperature range			°C	0 … +60
Weight			kg	0.14
Maximum admissible temperature change			°C/min	5
Transport temperature range			°C	-40 … +70
Storage temperature range with UV protection			°C	+5 … +40
Relative air humidity				10 … 95 % (without condensation)
Altitude, max.			m	2000
UV resistance				Housing is only partly UV resistant. Extended exposure to radiation may cause color changes.
Transport shock according to DIN EN 60068-2-27				15 g / 11 ms / 3 axes
Sine test according to DIN EN 60068-2-6				10 … 500 Hz / maximum of 2 g / 10 cycles / 3 axes
Noise test according to DIN EN 60068-2-64				20 … 500 Hz / 2.2 g RMS / 6.6 g peak / 30 min / 3 axes
Free fall (in original packaging)			m	1
Installation position				Vertical. For the breathing of the assembly, the ventilation slots of the top and bottom side must be at least 2 cm away from covers, walls, etc. With an ambient temperature of more than 50 °C, the clearance to the next assembly must be 1 cm.
Top hat rail assembly				TH35-7.5 or TH35-15 according to EN 60715
Housing material				Glass-fiber reinforced polyamide plastic
Resistance against aggressive media				Contact with conductive dusts is not admissible. Avoid contact with hydraulic fluids.
Conformity				CE according to the EMC directive and RoHS directive
Electro-magnetic compatibility	EN 61000-6-2	EN 61000-4-2 ESD	kV	4 kV CD / 8 kV AD with BWK B
		EN 61000-4-3 HF radiated	V/m	10 (80 … 6000 MHz) with BWK A
		EMC EN 61000-4-4 Burst	kV	2 (5 kHz und 100 kHz) with BWK B
		EN 61000-4-5 Surge	kV	0.5 (2 Ω/12 Ω) to operating voltage, 1 kV (42 Ω) to signal with BWK B
		EN 61000-4-6 HF conducted	Veff	10 (150 kHz … 80 MHz) with BWK A
		EN 61000-4-8 Magnetic field 50/60 Hz	A/m	100 with BWK A
	EN 61000-6-3 / EN 61000-6-4	EN 55016-2-1 Interference voltage	MHz	0.15 … 30 MHz, class A, EN 55022
		EN 55016-2-3 Radio interference field strength	MHz	30 … 6000 MHz, class B, EN 55022

Block diagram VT-MSPA1...

1)	Power supply
2)	Ready for operation
3)	Digital input
4)	Command value
5)	Actual value
6)	Logic
7)	Enable
8)	Cable break
9)	Enable
10)	Measuring socket

1	Power supply unit
2	Differential amplifier
3	Command value summing device
4	Zero point setting
5	Inverter
6	Single ramp
7	4-quadrant ramp
8	Command value attenuator
9	Characteristic curve generator
10	Current controller
11	Clock generator
12	Output stage
13	Enable or inverter or ramp off or 4Q ramp
14	Switching logics/fault recognition
15	Digital output

Block diagram VT-MSPA2...

1)	Power supply
2)	Ready for operation
3)	Digital input
4)	Command value
5)	Actual value
6)	Logic
7)	Enable
8)	Cable break
9)	Enable
10)	Measuring socket

1	Power supply unit
2	Differential amplifier
3	Command value summing device
4	Zero point setting
5	Inverter
6	Single ramp
7	4-quadrant ramp
8	Command value attenuator
9	Characteristic curve generator
10	Current controller
11	Clock generator
12	Output stage
13	Enable or inverter or ramp off or 4Q ramp
14	Switching logics/fault recognition
15	Digital output

Dimensions in mm

Terminal assignment

		Plug-in connector	Terminal
Operating voltage	+UB	XH1	1
	0 V	XH1	2
+ solenoid B		XH1	3
- solenoid B		XH1	4
Digital input		XH2	5
Ready		XH2	6
+ solenoid A 1)		XH2	7
- solenoid A 1)		XH2	8
+ command value		X2A	9
- command value		X2A	10
+ actual value		X2A	11
- actual value		X2A	12

Device view

1	Status LEDs Display the current operating state, menu levels and error conditions
2	SET key Editing the selected parameters, selection of work operation, selection of the "expert mode"
3	+ / - keys Selection of the parameters and adjustment of the parameter values
4	Rotary switch Valve type selection
5	Measuring sockets for connecting a measuring instrument

Status description LEDs

Indicator light	Operating state	Display mode	Meaning
"Digital input" LED (yellow)	Normal operation	Permanent light on/off	Digital input status
	Setup	Flashing	Standard setup active
	Setup	Off	Expert setup active
	Setup	On/flashing/flickering	Expert setup: Digital input setting
"Ready" LED (red/green)	Normal operation	Permanent light green	Module ready for operation
	Normal operation	Permanent light red	Error
	Normal operation and setup	Flashing red/green	Valve setting changed
	Normal operation and setup	Flashing red	Inadmissible valve number
	Normal operation	Off	Module not ready for operation
	Setup	Flashing green	Expert setup active

Description of the LED display 1)

DI	Enable 2)
t	Ramp
Z/B	Zero point / pilot current
G	Command value attenuator
S	Step level command value
☺	Ready for operation
	1st quadrant (positive command value rising)
	2nd quadrant (positive command value falling)
	3rd quadrant (positive command value rising)
	4th quadrant (positive command value falling)

1)	A detailed description is contained in the operating instructions 30232-B
2)	Function of the digital input can be adjusted in the setup

Product documentation for VT-MSPA..-2X:

Data sheet 30232 Operating instructions 30232-B CE declaration of conformity (available from Bosch Rexroth upon request) General information on the maintenance and commissioning of hydraulic components: Data sheet 07800 / 07900 Documentation on the Internet: www.boschrexroth.com/VT-MSPAx

Maintenance instructions:

The devices have been tested in the plant and are supplied with default settings. Only complete devices can be repaired. Repaired devices are returned with default settings. User-specific settings must be made by the machine end-user once again.

Notes:

In especially EMC-sensitive environments, additional measures must be taken (depending on the application, e.g. shielding, filtration) Wiring information Maximum possible spatial separation between signal and load lines. Do not lead signal lines through magnetic fields. If possible, install signal lines without intermediate terminals. Do not install signal lines in parallel to the load lines. Connect cable shields (see operating instructions 30232-B) For digital inputs and outputs as well as command and actual value, the max. admissible cable length for unshielded cables is 30 m. With longer cable lengths, shielded cables are to be used. The distance to radios must be sufficient (> 1m). With a strongly fluctuating operating voltage, it may in individual cases be necessary to use an external smoothing capacitor with a capacity of at least 2200 μF. Recommendation: Capacitor module VT 11110 (see data sheet 30750); sufficient for up to 3 amplifier modules. The upper and lower ventilation slots must not be concealed by adjacent devices in order to provide for sufficient cooling.

Assignment switch position - valve type

VT-MSPA1		VT-MSPA2
Switch position	Valve type 1 solenoid	Switch position	Valve type 2 solenoids
0-0	no valve	0-0	no valve
0-1	4WRA6...-2X	0-1	4WRA6...-2X
0-2	4WRA10...-2X	0-2	4WRA10...-2X
0-3	4WRZ...-7X	0-3	4WRZ...-7X
0-4	3DREP6...-2X	0-4	3DREP6...-2X
0-5	4WRPH6...-2X (SO855)	0-5	3DREP6...-2X (SO674)
0-6	DBEP6...-1X	0-6	-
0-7	DBET-6X...G24...	0-7	-
0-8	DBET-6X...G24-8...	0-8	-
0-9	DBETX-1X...G24-25...	0-9	-
1-0	DBETX-1X...G24-8...	1-0	-
1-1	(Z)DBE6-2X...	1-1	-
1-2	DBEM10...-7X...G24...	1-2	-
1-3	DBEM10...-7X...G24-8...	1-2	-
1-4	DBEM20...-7X...G24...	1-4	-
1-5	DBEM20...-7X...G24-8...	1-5	-
1-6	DBEM30...-7X...G24...	1-6	-
1-7	DBEM30...-7X...G24-8...	1-7	-
1-8	(Z)DRE...-1X...	1-8	-
1-9	ZDRE10...-2X...G24...	1-9	-
2-0	ZDRE10...-2X...G24-8...	2-0	-
2-1	DRE...10...-6X...G24...	2-1	-
2-2	DRE...10...-6X...G24-8...	2-2	-
2-3	DRE...20...-6X...G24...	2-3	-
2-4	DRE...20...-6X...G24-8...	2-4	-
2-5	DRE...30...-6X...G24...	2-5	-
2-6	DRE...30...-6X...G24-8...	2-6	-
2-7	3DRE...-7X...G24...	2-7	-
2-8	3DRE...-7X...G24-8...	2-8	-
2-9	3FREX6...-1X...G24-25...	2-9	-
3-0	3FREX10...-1X...G24-25...	3-0	- 9-8
3-1	3DREP6...-2X... (SO674)	3-1	-
3-4	-	3-4	-
3-5	-	3-5	-
3-6	-	3-6	-
3-7	Pump Control 1 (0,7 A) EP2 (A7VO)	3-7	Pump Control 1 (0,74 A) EP (A4CSG)
3-8	Pump Control 2 (0,6 A) ED72 (A10VSO/31) ER72 (A10VSO/31)	3-8	-
3-9	Pump Control 3 (0,6 A) EP2 (A10VSO/52, 53) EK2 (A10VSO/52, 53) L4 (A15VSO...) E2 (A15VSO...) EP2,6 (A6VM)	3-9	-
9-6	Universal (0,8 A)	9-6	Universal (0,8 A)
9-7	Universal (1,6 A)	9-7	Universal (1,6 A)
9-8	Universal (2,5 A)	9-8	Universal (2,5 A)

Shield set for the installation with shielded lines

Type	Material number	Buy
SERVICE PACKAGE VT-HMC..-1X/M..SCHIR&	R961011117	eShop

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VALVE AMPLIFIER VT-MSPA1-2X/A5/000/000

Manufacturer: Bosch Rexroth

Material #: R901439034

Model : VT-MSPA1-2X/A5/000/000

Availability: 2 In Stock

General

Power supply unit [1]

Command value, command value summing device [3]

Ramps

Command value attenuator “G” [8]

Characteristic curve generator [9]

Current controller [10]

Clock generator [11]

Power output stage [12]

Digital input [13]

Digital output [15]

Block diagram VT-MSPA1...

Block diagram VT-MSPA2...

Terminal assignment

Device view

Status description LEDs

Description of the LED display 1)

Product documentation for VT-MSPA..-2X:

Maintenance instructions:

Notes:

Assignment switch position - valve type

Shield set for the installation with shielded lines

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