Digital Controller DGT 300+
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Technical features

Advanced regulation

  • Automatic P.I.D. parameters variation function
  • Closed loop + open loop mode
  • Inertia compensation control
  • Smooth start-up with programmable slope
  • E-stop torque proportional to the set point
  • Five complete built-in memories
  • Motors & Drives specific settings

User Friendly

  • Selectable language (En. / Fr. / Ge. / It. / Sp.)
  • Selectable Metric or Imperial units
  • Easy setup by Windows PC based software
  • Easy readout with backlit display ( 2 x 16 digits )
  • HOLD and RELEASE modes on front panel keyboard

Universal Load cell input

  • Compatible with all current load cell technologies
  • Suitable for one or two, half or full bridge load cells
  • Direct input available for diameter information (Ultrasonic sensors, Laser, Potentiometer)

Direct setup by software

  • No trimmer adjustment
  • No dip switch/resistance configuration
  • Unlimited configurations by software memory

dgt300

 

     
 

Tension Control - Regulation

Diameter Measurement

Cost effective and user friendly, these open loop regulation systems are able to maintain a web tension accuracy of about ±5%. A sensor (Ultrasonic, Laser, or potentiometer) measures the diameter information from the external surface of the roll. The regulator makes the calculation to provide the right torque level according to the diameter, and keeps the tension constant throughout the unwinding process.

 

Closed Loop Position Control (Dancer)

The cost effective closed loop solution: The tension on the product is generated by the force applied to the dancer roll (fixed weight or variable pressure in a pneumatic cylinder). A position sensor (potentiometer) measures the dancer roll position, and automatically adjusts the torque through a PID regulator to keep the dancer position stable and constant.

 

Closed Loop Force Control (Load Cells)

The ultimate closed loop solution: The web tension is maintained by continuously monitoring the difference between the set point and the loadcells feedback measurement. The torque is automatically adjusted through a PID regulator to keep the actual tension at the set point, even during accelration and deceleration. By design, the actual tension applied to the material is available for display and / or record.

   
 

Technical Data

dgt300
Inputs
Set point (external) V DC 0 → 10
Meas. / Dia. / Tacho V DC 0 → 10
Logical V DC 5 → 24
(Ext. rem. control) mA 15 max.
Outputs
Analog 1 & 2 V DC -10 → +10
Logical 1 & 2 mA NPN
PWM Output min. load Ω 4
PWM Output max current A 1,5
Supply
Power supply voltage V 24 AC/DC
Max consumption VA 50
Supply votage outputs
Load Cells V DC 5
Ultrasonic Sensor V DC 24
Temperature
Operating °C 0 → 40
 

 

Connections

dgt3000-anschlüsse

Com : 0 V
A01 : analog output control 1 (-10 to +10 V)
A02 : analog output control 2 (-10 to +10 V)
SetP : set point input (0 to 10 V, or potentiometer
+10 V : potentiometer supply
TC : tachometer input / 0 to 10 V)
LS : Encoder input (5-24 V PNP/NPN
DM : diameter input
+24 V : ultrosonic sensor supply
S1- : signal (-)
S1+ : signal (+)
+5 V : load cell or sensor supply
+24 V : main supply (24 V AC or DC)
C1 : power output direct supply1
C2 : power output direct supply2
AL- : output logic reference
AL1 : logic output 1
AL2 : logic output 2
A : logic input 1 → process configuration
B : logic input 2 → process configuration
V+ : logic output voltage remote control
init : INIT → regulator configuration
reg : REG → regulator configuration
Nota : all Com / 0 V are linked to the ground

mobac GmbH · Kieler Str. 23· D-24247 Mielkendorf · Tel. +49 (0)4347 90477-0 · Fax +49 (0)4347 90477-10 · info@mobac.de