PIM-00004
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[Operation Manual]
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DAIKIN INDUSTRIES, LTD.
(2) Multi-stage speed control/Multi-stage pressure control, and shockless control functions
The Super Unit enables multi-stage pressure control/flow rate control by selecting 16 patterns of P-Q
characteristics that have been registered in the controller from the master machine (via a contact input).
The Super Unit enables shockless control by setting or adjusting the rising/falling time during
changeover of P-Q characteristics.
Since the conventional valve-controlled functions are controlled with the pumps, the Super Unit can
simplify the system configuration and reduce the cost for switching between high-speed and low-speed
operations and multi-stage pressure control of presses.
M
M
Conventional system configuration
System configuration of Super Unit
Controller
General-purpose
solenoid valve
Combination mode/single
mode switching valve
Driver
Special spool
shockless solenoid
valve
Throttle valve
Proportional
relief valve
Standardization of
solenoid valve
Elimination of throttle valve
Elimination of proportional
control valve
Reduction in number of
control valves through
software-based control
Example of hydraulic pressure circuit
configuration
Quick
reduction
Deceleration
Low speed
Increased
pressure
Pressure
increase
(in 3 steps)
Depressurization
Increase
Cylinder speed
Time (sec)