AZ
2
USER MANUAL
ST.TEC.003.EN Rev. 2.1
10 / 52
2.
GENERAL INFORMATION
AZ
2
is a full electronic motor drive designed for the control of two DC motors in low voltage
applications. The power stage is based on MOS transistor technology, controlled by a pulse width
modulation (PWM). A digital signal processor (DSP) elaborates the control data, generates the output
waveforms and manages the communication interfaces.
The user can exchange data and commands with the drive using the digital I/O and a Modbus
interface. The last one is mainly used for communication with the PC application through which the
user can change parameters, monitor the status of the drive and read diagnostic information. The
use of the Modbus interface in a fieldbus system needs an optional transceiver board, to adapt the
voltages levels from the board to the fieldbus physic level.
The board is also capable to acquire both the output currents, the supply voltage and the board
temperature. More than ten auxiliary I/O are available on the board and can be used for custom
applications or future purposes.
The AZ
2
drive is designed for the open loop control of linear actuators driven by DC motors but its
use can be extended to any application involving the control of DC motors. For this reason in the
following manual the terms motor and linear actuator, forward/backward and open/close are used
as synonyms.
2.1.
Technical characteristics
TECHNICAL DATA
Supply voltage
12 V to 48 V DC, maximum ripple 20%
Output current
Code AZ2048D01000000:
Maximum 10 A / motor, S3 – 30% – 5 minutes service factor
Code AZ2048D01500000:
Maximum 15 A / motor, S3 – 30% – 5 minutes service factor
PWM frequency
10 kHz
Quiescent current
50 mA @ 24 V DC supply
Inputs (not isolated)
1.7 – 12 V DC ON, 0 – 0.7 V DC OFF
8 inputs for commands and limit switches
4 inputs for pulse signals (max 1 kHz)
Pull-up/down (10 kΩ) settable for each input type
Outputs (not isolated)
2 NPN open collector (max 50 mA – 24 V DC)
One for general fault and one with programmable function
Output auxiliary voltage 12 V DC, maximum 50 mA
Diagnostic
Blinking codes using a multicolour LED
Operating temperature
-20°C … +60°C
IP grade
IP00
Dimensions and weight
Code AZ2048D01000000:
86 x 72 x 36 mm (LxWxH); 67 g
Code AZ2048D01500000:
86 x 72 x 43 mm (LxWxH); 130 g
Table 1: AZ
2
technical data
Содержание AZ2
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