Etel DSC Series Hardware Manual

ETEL Doc.- Hardware Manual # DSCDP / Ver G / 6/1/11
DSCDP Hardware Manual 7
1.2 DSCDP presentation
1.2.1 Working principle
The DSCDP is a digital position controller. It has been designed for direct drive applications. Its power bridge
PWM switching is determined by the motor position encoder. The DSCDP includes on a single board, the
control circuits, the power bridge and all the necessary interfaces for the communication, the encoders and the
inputs/outputs for two motors. The housed model includes also a power supply on the same board, inside the
same housing.
1.2.2 Applications
The DSCDP can drive two, single-phase, two-phase or/and three-phase motors. You can obtain brushless
torque and linear motors from ETEL, as well as moving coils and moving magnets. The DSCDP can drive these
motors and also brushless motors, DC motors, steppers (only if three-phase motors are star-connected). They
must also be implemented with analog (incremental or absolute (EnDat 2.1)) or TTL encoders available on the
market. Digital Hall effect sensor can also be connected to the controller (with firmware from version 1.12A). It
is also possible to drive stepper motors in open loop (no need of encoder in this case) with firmware from
version 1.14A.
1.2.3 General operating conditions
The DSCDP is designed to operate in a non-aggressive and clean environment, with a humidity rate ranging
between 10% and 85%, an altitude < 2000m (6562 ft), and a temperature ranging between +15°C (59°F) and
+40°C (104°F) for the rack format or +30°C (86°F) for the housed format. The DSCDP must be connected to
an electrical network of overvoltage category 2 (refer to EN 50178 and UL 840 standards for more information)
and is suitable for use on a circuit capable of delivering not more than 5000 Arms, symmetrical amperes, 400
volts maximum. The electronics must be in an enclosure respecting a pollution degree of 2 (refer to UL 508C
and EN 50178 standards for more information). The DSCDP is not designed or intended for use in the on-line
control of air traffic, aircraft navigation and communications as well as critical components in life support
systems or in the design, construction, operation and maintenance of any nuclear facility.
1.2.4 Transport and storage conditions
During the transport and the storage, the controller must remain inside its original packaging. The transport
conditions must respect the class 2K3 of the IEC 60721-3-2 standard (temperature between -25°C and +70°C,
and humidity < 95% without condensation) and the storage conditions must respect the class 1K2 of the IEC
60721-3-1 standard (temperature between +5°C and +45°C, and humidity between 5 and 85% without
condensation).
1.2.5 Interfaces possibilities
Motor and its position encoder
To control the position (in closed loop) of a rotary and/or linear motor, the DSCDP needs a signal coming from
an analog (incremental or absolute (EnDat 2.1)) or a TTL encoder linked to this or these motor(s). It is also
possible to drive stepper motors in open loop (no need of encoder in this case).
Communication
The user can set the DSCDP with a PC (Win 9x/2000/NT/XP) using the ETEL Tools (ETT) software through
the ETEL-Bus-Lite2 (RS232 / RS422) communication port. Refer to the 'EBL2 Communication Manual' for
more information.
The DSCDP also includes ETEL's Turbo-ETEL-Bus (TEB) which is a high speed field bus based on an Ethernet
100 Mbps chip. It includes all features to interpolate complex movements with several synchronized DSCDPs,
if ETEL's DSMAX motion controller is installed in a PC and linked to the TEB. If ETEL Tools is installed on the
same PC than the DSMAX (or DSTEB) board, all the DSCDPs can be set through the TEB. The user can 'daisy
chain' up to 31 nodes on the TEB (15 DSCDPs (30 axes) and one DSMAX (or DSTEB) board).
Caution: The TEB is not compatible with Ethernet boards available on the market. Therefore, do not
connect the TEB on the Ethernet port of your PC.
Inputs / outputs
The customer's inputs / outputs are digital signals coming from a CNC machine-tool, a PLC or a joystick for
example (refer to the connection diagram next page).
The electrical interface details are given in §3.
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Etel DSC Series Specifications

General

Brand	Etel
Model	DSC Series
Category	Controller
Language	English