VT-SSPA1-5-1X/V0/0-24/K24
Manufacturer: Bosch Rexroth
Material #: R901238530
Model : VT-SSPA1-5-1X/V0/0-24/K24
***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-SSPA1-5-1X/V0/0-24/K24 (R901238530) is an advanced plugin amplifier designed for precise control in hydraulic systems. This device is adept at installation on a valve connection base compliant with EN standards, offering versatility through 90-degree rotation increments for optimal positioning on the solenoid. The command value presetting feature allows for a range between 0 and UB, ensuring that solenoid current remains proportional to the command value within a specified voltage range and nearly constant at higher values according to the Imax setting for reliable switching applications.
The integrated ramp generator is engineered to manage the rate of change in the control output, with separate adjustments available for both ascending and descending ramp times. This functionality is crucial in mitigating the impact of switch-on and switch-off impulses, contributing to smoother transitions in operation. Notably, conductor connection influences this feature, highlighting its dependency on specific valve and solenoid types without affecting ramp time by the command value attenuator.
Bosch Rexroth has meticulously designed the characteristic curve of this amplifier to ensure linear progression up to a certain command value threshold. Adjustments can be made using potentiometers Z for zero-point correction and G for maximum value tuning. The power output stage employs a freely clocking mechanism where clock frequency is adjusted by potentiometer f, tailored according to current levels, operating voltage, and solenoid impedance—balancing valve hysteresis against system noise levels.
Furthermore, this model features a differential input only and offers an analog interface with connector design suitable for KBPS valves. It supports a regulated adjustable maximum current for high-command values and includes components like zero potentiometer for pilot current adjustment, command value attenuator for maximum current control, and dither frequency potentiometer—all within a component series X package that operates effectively at 24V.
$559.00 USD
More are expected on April 8, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as April 8, 2025 when ordered in
|
G |
Command value attenuator / maximum current |
|
Z |
Zero point potentiometer / pilot current |
|
t < |
Ramp time "Ramp up" |
|
t > |
Ramp time "Ramp down" |
|
f |
Clock frequency |
|
(1) |
Internal voltage adjustment |
|
(2) |
Voltage input |
|
(3) |
Zero point potentiometer “Z” / pilot current I (IN = 0 %) |
|
(4) |
Command value attenuator “G” / maximum current I (IN = 100 %) |
|
(5) |
Ramp time potentiometer “t<” and “t>” |
|
(6) |
Frequency range correction “f” |
|
(7) |
Power output stage |
|
Terminal / pin |
Signal designation |
|
+UB / 1
|
Operating voltage |
|
0 V / 3 |
0 V |
|
IN+ / 2 |
Command value |
|
IN- / 4 |
Reference potential |
Terminal connection
Danger of malfunctions
in case of EMC/ESD interferences affecting the connection cable
Do not install command value
connection lines in the gray area (arrow)!
The connection for protective earthing conductor is accessible after the
electronic circuit board has been removed.
Connection cross-section:
4 x 0.75 mm2 shielded or
5 x 0.5 mm2 shielded (connect shield in the control cabinet)
Terminal connection
M12 connector, top view
The connection for protective earthing conductor is not provided
Connection cross-section:
4 x 0.75 mm2 shielded
(connect shield in control cabinet)
2-conductor technology
Switching application with constant current control Ramp function upon switch-onThe “IN+” input is bridged with supply voltage (+UB) in the connector, the IN- input is bridged with supply voltage (0 V) in the connector.
The maximum current must generally be adjusted according to the solenoid information using potentiometer "G". The ramp time "ramp up" (t <) can be set within the range of tmin to 5 s.
2-conductor technology
3-conductor technology
Switching application with constant current control
Switching with low control power
Ramp function can be adjusted separately when switching the control voltage on and off
The “IN+” input is connected to the control voltage
(Us = 24 V), the “IN–” input is bridged with supply voltage (0 V) in the connector.
The maximum current must generally be adjusted according to the solenoid information using potentiometer "G". When switched off ("IN+" = 0 V or "IN+" = open), a pilot current can be set at "Z". It serves to reduce the switch-on delay, particularly with ramp. If required, this value can be adjusted between approx. 0 mA and approx. 15 % of the rated current. The ramp times “ramp up” (t <) and “ramp down” – (t >) can be set within the range of tmin to 5 s.
3-conductor technology
4-conductor technology
The “IN+” input is connected to the control signal (Us = 0...10 V/24 V), the “IN–” input to the reference potential of the control voltage.
Pilot current and maximum current are set using potentiometers "Z" and "G" prior to commissioning. The current can now be proportionally adjusted according to the control voltage between the set pilot current and the set maximum current. The pilot current can be set in the range from approx. 0 to approx. 15 % of the rated current, the maximum current can be set in the range from 0 to Imax .
4-conductor technology
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