VT-SR11-1X/1 4WRD16V1-200 SO43A-1608

Manufacturer: Bosch Rexroth

Material #: R978919240

Model : VT-SR11-1X/1 4WRD16V1-200 SO43A-1608

$4,208.00 USD

More are expected on June 3, 2025

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Status: This product is temporarily out of stock.

Qty: Delivered as early as June 3, 2025 when ordered in

Voltage input Controller for valve flow and main control spool position Oscillator/demodulator for inductive position feedback Enable input Output stage with dither signal Measuring instrument for valve flow display Reverse polarity protection for the operating voltage

The valve amplifiers operate with a push-pull output stage with bipolar transistors. The output of this output stage can be connected or disconnected by means of an enable circuit (relay K2). The enable is indicated by the LED "H2" on the front plate being illuminated. The switching voltage of all relays is defined by means of jumpers J12 and J13 to either 0 V or +UB (factory +UB).

The output stage consists of an I controller with connected dither signal generator. The amplitude of the dither signal is set by means of R7. The pre-stage (current command value) is controlled via a PD controller. The actual current value returned is simultaneously indicated by the instrument on the front plate.

The oscillator/demodulator senses the control spool position. It is designed as pluggable board the parameters of which are adapted to the respective valve type.

The PD controller is supplied the position command value and the position command value and the actual position value with the D share of the controller only affecting the actual value (velocity feedback).

The zero point can be set via R3 (NP) from the front plate.

The required symmetric operating voltage +UB is protected against reversed polarity. If the board is not equipped with any voltage regulators for supply of the controller and position transducer electronics, an additional stabilized auxiliary voltage ±UM is required. The auxiliary voltage port is protected against reversed polarity up to a maximum current of 1 A.

As an option, the amplifier can be equipped with a PID controller (D share only affects the actual value) with a switchable PI share and a backup relay with potential-free changeover contact. This controller can be used to superimpose a further control loop (e.g. for drive control). The P and D share can be set at the front plate. The controller switching status is indicated by the LED "H1", the relay at LED "H3" (LEDs illuminated if relays are applied). The PID controller fitting is customer-specific and therefore has to be specified in the order in plain text. These amplifiers receive a special type designation upon delivery. The backup relay is loadable up to 28 V and 0.5 A.

01	Valve amplifier for servo valves with electrical position feedback	VT-SR11

02	Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions)	1X

03	Without ±15 V voltage regulator	0
03	With ±15 V voltage regulator	1

04	Version: standard	No code
04	For valves: 4WRD…XN	V002

05	For valves: 4WRD 10-5X	4WRD10-5X
	For valves: 4WRD 16-5X	4WRD16-5X
	For valves: 4WRD 25-5X	4WRD25-5X
	For valves: 4WRD 32-5X	4WRD32-5X
	For valves: 4WRD 52-5X	4WRD52-5X

06	Further details in the plain text	*

01		02		03		04		05	06
VT-SR11	‒	1X	/		/		/		*

General

Component series		1X
Type of electronics		Analog
Design		Euro-card

Voltage supply

Operating voltage	with integrated voltage regulator		UB	V	± 24
		Upper limit value	UB(t)max	V	± 28
		Lower limit value	UB(t)min	V	± 22
	without integrated voltage regulator		UB; UM	V	±24; ±15.0
		Upper limit value	UB(t)max; UM(t)max	V	±28; ±15.2
		Lower limit value	UB(t)min; UM(t)min	V	±22, ±14.8
Current consumption	max.		Imax	V	0.15 A

Analog inputs

Command value	Voltage	grounded on one side, first input 1)	Ue	V	0 … ±10
Command value	Voltage	grounded on one side, second input 2)	Ue	V	0 … ±10
Actual position value 1)	Voltage		Ue	V	0 … ±10

1)	RE = 50 kΩ
2)	RE = 50 kΩ, J9 gesteckt

Digital inputs

Enable 1)	On (active)	Ue	V	+24 (with J13); 0 (with J12)
Controller change-over 1)		Ue	V	+24 (with J13); 0 (with J12)
Backup relay 1)		Ue	V	+24 (with J13); 0 (with J12)

1)	RE = 700 Ω (relay)

Analog outputs

Valve flow command value	Voltage	UO		±10 (-10 V ≙ +100 mA), J10 plugged, port 28a

Solenoid outputs

Solenoid current	max.	Imax	mA	60
Dither signal		f	Hz	470 ±5 %

Position transducer

Oscillator frequency	f	kHz	5

Other information

Relay	Pickup voltage		V	+24 (UB)
	Nominal voltage	U	V	26
	Response voltage	U	V	13
	Step-back voltage	U	V	1.3 ... 6.5
	Switching time	t	ms	4
	Coil resistance at 25 °C	R	Ω	700
	Contact load	I	A	0.5
Reference voltage	Potentiometer supply	U	V	±15 ±2 % (Imax = 150 mA)
Anschlussart				32-pole male multipoint connector, DIN 41612, design D
Ambient temperature range		ϑ	°C	0 … 50
Storage temperature range		ϑ	°C	-20 … 70
Weight		m	kg	0.3

For applications outside these parameters, please consult us!

The amplifier card may only be unplugged and plugged when de-energized. Command values may only be switched via relays with gold-plated contacts (low voltage, low currents). Card relays may only be switched (enable, controller change-over, reserve) using contacts with a load capacity of approx. 40 V; 50 mA. Always shield command and actual value cables; connect shielding to ground (⊥) on the card-side, open at one side. Do not lay signal lines close to power lines.

Recommendation:

Also shield the solenoid conductors (to ⊥ on one side). Up to a length of 50 m, use cable type LiYCY 1.5 mm2, for longer lengths please ask.

Information on V002 variant::
The project planning information in data sheet 29094-XN-B2 must be complied with.