LDC Screen
4.- OPERATION
B
E
F
A
D
G
C
SYSTEM DESCRIPTION
1
2
1
2
Keyboard
ENT
ESC
Inputs and outputs
• Analogue input 0/4-20mA
• External pulse input
• Remote on/off input
• Level sensor input (pre-empty)
• Level sensor input (empty)
• Leakage detector input
• Flow detector input
• Pressure sensor input
• Serial port RS-485 ModBus
• 4-20mA output for register and monitoring
• Pulse output for register, monitoring and
2nd pump control
• Alarm output (relay)
• Level alarm output (relay)
The rotational motion of the motor is transmitted by the gear box, that consists of
two major components, the pinion (A) and the ring gear (B. The pinion and the ring
gear are linked to an axis with an eccentric bearing (C) that pushes the shaft (D)
which is throated to the diaphragm or the piston (E). The return movement is
made by the spring (F).
A high resolution encoder (G) checks the instantaneous position and speed and
allows the Advanced Control Unit to do a close loop adjustment for torque and
rotation speed.
By changing the motor speed and according to the operation mode selected in the
Advanced Control Unit, the dosing pump adjusts the flow to the required value
within the range from 10 to 100% of the rated flow.
Confirm
Exit without confirm
Increase / reduce value
Move left
Move right / Test max. speed
10
Summary of Contents for DOSTEC-AC
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