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The product provides the following features relevant to CytroPac:
More functions
• Pressure/flow rate setting
– Easy setting of the command value (internal command values and 4
– Command value setting via communication possible
• p/Q-PID control
– p/Q control with automatic switch-over between pressure and volume
– Flow control
– Pressure control
– Two switchable sets of controller parameters
• Extension functions
– Hydraulic soft start and separate acceleration ramp
– Sleep/wake-up function
– Pressure drop/excessive pressure compensation
– Pump power limitation
– Master/slave control (only "Premium" and "Premium M12" only)
• Protective function
– Actual pressure monitoring
– Limit value for pressure and flow command value
– Oil exchange warning/fault
– Thermal pump monitoring
– CytroPac sensor monitor ("Premium" and "Premium M12" only)
– LED flashing pattern to indicate the converter status
5�2 Product description
The CytroPac is a frequency-controlled hydraulic power unit consisting of a frequency
converter, electric motor, hydraulic pump, oil tank, cooling system and sensor
technology. The cooling system consists of the heat exchanger for motor and
frequency converter cooling as well as optional cooling packages for hydraulic fluid
cooling.
The cooling power can be selected by the number of cooling packages in the oil
tank according to data sheet 51055. Refer to chapter 1.2 "Required and amending
documentation".
Thanks to the flow-optimized design of the oil tank, the required hydraulic fluid
volume was reduced to 20 liters. The cooling system integrated in the oil tank
extracts heat energy from the hydraulic fluid and transfers it to the cooling water.
The ring-shaped oil tank includes the motor-pump group and additionally reduces
the operating noise.
The hydraulic power unit serves for controlled or regulated generation of
hydraulic flow and hydraulic pressure.
switchable parameters for the pressure command value)
("Premium" and "Premium M12" only)
flow control mode
("Premium" and "Premium M12" only)
Product information | CytroPac
RE 51055-B, Edition 07.2022, Bosch Rexroth AG
19/80
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