Rexroth VT-HACD-1-15/V0/1-0-0 Single Axis Digital Closed Loop Control Board

Rexroth VT-HACD-1-15/V0/1-0-0 Single Axis Digital Closed Loop Control Board

VT-HACD-1-15/V0/1-0-0 R978034471 is the first generation single axis digital electro-hydraulic closed-loop control board from Bosch Rexroth. VT-HACD-1-15/V0/1-0-0 This board does not integrate a power drive stage and requires an external proportional valve amplification board for use. It relies on a 32-bit microprocessor to complete the fully digital closed-loop operation of the hydraulic shaft and is suitable for small and medium-sized high-precision hydraulic systems such as bending machines, forging equipment, injection molding machines, and metallurgical hydraulic workstations.

Rexroth VT-HACD-1-15/V0/1-0-0 Single Axis Digital Closed Loop Control Board

Core function

1. Standardization processing of upper command signals
   Receive voltage/current given signals from PLC, complete range switching, filtering, ramp generation, and amplitude limiting processing, and output standardized control signals to external valve amplifiers.
2. Dual channel closed-loop motion calculation
   Built in PIDT1 closed-loop algorithm, supports position and pressure dual closed-loop superposition control, and can achieve composite process logic such as position following pressure holding, segmented pressure adjustment, and constant tension control.
3. Multi type position feedback collection
   Compatible with incremental encoder and SSI absolute value encoder signal acquisition, real-time reading of the actual position of the oil cylinder and actuator, high-speed calculation of deviation value correction output instructions.
4. Digital Logic Interaction Control
   Multiple digital inputs receive start stop, limit, and mode switching signals; The digital output feedback device is ready, with fault alarms and completion signals in place, simplifying the logical wiring of the entire machine.

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Item	Specification
Model	VT-HACD-1-15/V0/1-0-0
Brand	Bosch Rexroth Indramat
Part No.	R900745354
Product Type	Digital Hydraulic Axis Controller Card, No Valve Output Stage
Control Loops	2 independent closed-loop channels
Main Controller	32-bit microprocessor
Hardware Version	15
Fieldbus Interface	None
Front Display	Integrated digital display for parameter & fault view
Analog Input	6 channels, software selectable ±10V / 0–10V / 4–20mA
Analog Output	3 channels; AO1 configurable voltage/current, AO2/AO3 fixed ±10V
Position Feedback	Incremental encoder + SSI absolute encoder compatible
Digital Input	8 channels, 24VDC logic
Digital Output	7 configurable channels, max 30mA per channel
Service Port	RS232 for BODAC software parameterization
Operating Supply	24VDC ±10%
Standby Current	250mA
Fuse Specification	4A time-lag fuse
Control Cycle Time	2ms standard loop
Nonlinearity of Analog Input	<10mV (voltage mode)
Analog Output Resolution	10mV (±10V range)
Onboard Memory	Non-volatile Flash for parameter storage
Mounting Form	Eurocard plug-in rack installation
Protection Class	IP20 (cabinet-only use)
Operating Temperature	0℃ ~ +50℃
Relative Humidity	5% ~ 95% non-condensing
Approximate Weight	0.2kg