PCP VOLUMETRIC PUMP DRIVE
1 INTRODUCTION
1.1 The manual
The user manual is the document that accompanies the pump from the moment of its construction and for the entire period of
use, it is therefore an integral part of the pump. The manual must be read before undertaking any operation involving the pump.
The manual must be readily available to personnel assigned to use and maintenance of the pump. The user and the person
responsible for use are required to know the contents of this manual. Reproduction of any part of this manual, in any form,
without the express written permission of DAV Tech is prohibited. The texts and illustrations contained in the manual are not
intended to be binding, DAV tech reserves the right, at any time and without notice, to make any changes to improve the product
or for constructive or commercial needs.
1.2 Warranty
The warranty is valid for a period of 12 months starting from the commissioning date and in any case not later than 15
months from the delivery date. Interventions carried out during the warranty period do not in any way extend the warranty
period. The seller is not liable for defects due to the normal wear of parts which, by their nature, are subject to wear.
1.3 Goods receipt
Upon receipt of the goods, check that:
• The packaging is intact.
• The exact correspondence of the ordered material.
The original drive configuration must definitely not be changed.
2 TECHNICAL DESCRIPTION
2.1 Operation
The controller was created to manage the movement of a PCP pump with DC motor with feedback from an encoder.
The DMD1204PN controller has Profinet IO and Modbus TCP / IP connectivity via ethernet, this allows the drive to be controlled
by most PLCs.
The device internally manages a “ Modbus Server” in addition to the IO Device, it must therefore be interrogated by another
Client device to read and write data.
The configuration of the Profinet interface can be managed directly from the development PLC tool used, as the functions for
assigning the device name and ip address are standard and are already managed directly by the drive.
The parameterization and the programming of the drive is simple and fast thanks to DC Control, the Tool supplied with an
advanced graphic interface for Windows able to communicate with the drive both with USB and with Ethernet.
The drive already contains a software that manages the PCP pump in all its aspects, enabling, dispensing, suck-back function,
possible outlet valve etc., this program can be parameterized with the variables exchanged with the PLC via Profinet or Modbus
TCP / IP.
2.1 Technical specifications
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. 3
Output current
Rated current
A
RMS
4
Peak current
A
RMS
8
Supply
Voltage range
V
DC
+24 .. 85
Rated voltage
V
DC
+65
Current control
Type
Dual MOSFET H-bridges
Frequency
KHZ
20 (50 µs)
PWM outputs
20 KHz center-weighted PWM
Protections
Short circuit, overvoltage, undervoltage, | T, pursuit, position
Feedback
Incremental line driver or push pull encoder (PNP o NPN)
Input digital general
purpose
Number
9 + 3 (superimposed on the service inputs)
Type
PNP TTL compatible up to +30 VDC
Function
configurable via software
Output digital general
purpose
Number
4
Type
PNP +24 VDC
Current
mA
100 per channel
Protection
Temperature, short circuit
Function
Configurable via software
Service Digital Input
Number
6 (superimposed on general purpose inputs)
Type
PNP o NPN da 5 a 30 VDC
Current consumption
mA
8
“High” / “Low” level
threshold
V
DC
> + 2,2/ < + 0,8
Features
High-speed inputs
Analog input
Number
3 (optional)
Resolution
bit
12
Range
V
DC
0 ... +10 (+/- 10V optional on Ana.inp. and Ana.inp.1)
