15P0059B3 DCREG2
USER MANUAL DCREG4
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OPERATING FEATURES DCREG4: operation and total reversibility in the four quadrants: may operate
as a motor or a brake towards both directions of rotation. Speed or torque
control system.
DCREG2: operation as motor in the 1st quadrant with speed or torque control
system. May operate as a brake in the 2nd quadrant with speed or torque
control system.
In both drive versions, each quadrant may be enabled or disabled
independently. Possibility of operation with constant available maximum torque
/ power through an internal field regulator.
AUTOMATIC TUNING The drive acknowledges the main characteristics of the motor and load to
automatically calculate the most convenient parameters to be introduced in the
speed and current loops.
SERIAL INTERFACE It may be supplied with a MODBUS protocol according to RS232-C standard
and RS485 standard. For more details, please refer to the PC-DCREG
INTERFACING VIA MODBUS (P/N 16B0301B3) manual.
FIELDBUS ProfiBus-DP available. By request, InterBus, DeviceNet, ControlNet, CANopen
are available.
The following items may be set at DCREG input:
a) START and ENABLE digital inputs and six programmable digital inputs.
b) Speed / voltage reference or current reference.
Finally, DCREG may duplicate - by means of its programmable analog or
digital outputs - the input signals sent by the field bus and resend those signals
to the bus field for the analog or digital inputs.
For more information, please refer to the PC-DCREG INTERFACING VIA
PROFIBUS-DP (P/N 16B0221B3) manual.
ACCURACY ± 0.1% of rated speed following:
1) Load variations up to 100% of the rated torque.
2) Root mean square variations of the supply voltage of +10/-15% (or higher,
depending on each case) with respect to the rated value.
3) Temperature variations of ±10 °C.
ANALOG INPUTS No. 3 configurable analog inputs and No. 1 fixed analog input, 12-bit resolution
+ sign. No. 2 voltage analog inputs ±10 Vdc (input resistance 20 k) or current
analog inputs 4÷20 mA (load resistance 200 ) are available with differential
input or common-mode (in both cases). Possibility of application of Bias, Gain,
Polarity, Reverse operators. Minimum speed function available by request.
INTERNAL REFERENCES Seven preset run references and 2 jog references are provided. One run
reference is also available, that can be used for the Motorized Potentiometer
function.
RAMP FUNCTION Fully digital function with independent setting (may also be external) of
acceleration or deceleration time duration for both running directions. Outside
zero setting command for ramp times. Possibility of initial or final ramp
rounding with 2nd type function. In the DCREG4, automatic extension of the
acceleration or deceleration ramps whenever the load requires a torque value
very close to the maximum torque (in both cases, either motor or braking
respectively). In DCREG2, automatic extension of the deceleration ramp
whenever inferior to the coasting time. In that way the ramp generated inside
the drive is always related to the motor actual speed.
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