A built-in PC board in Eurocard format type size 6 HU accommodates
the processor unit, the power controller and the power supply unit. The
most important function blocks of the unit are evident in the block diagram
(fig. 1-2).
The power supply unit is a high-performance AC/DC converter which can
be connected to 115 VAC or 230 VAC mains supplies. The energy
recovered by a motor during braking can be temporarily stored up to a
certain extent. To dissipate a higher amount of braking energy, an
external bleed resistor must be connected.
Power supply unit
External bleed resistor
A DC/DC power supply unit generates various voltage levels for sup-
plying the internal electronic circuits of the processor unit from the 24
VDC voltage supply.
DC/DC power supply unit
NOTE
The electronic circuitry of the processor unit consists of PELV circuits as
defined in the DIN standard VDE 0160.
WDP3-01X
Inputs
RS 232, RS 485
ANOZ, field bus
Outputs
24 VDC
Option
Interface
OPT.1
Signal
interface
Oscillator
Management
processor
Indexer
(movement
profile
generator)
Rotation
monitoring
Power
controller
Processor unit ( P control)
M
E
DC
DC
Bleed resistor
115 VAC/230 VAC
Power supply
325 VDC
AC
EEPROM
A/B or
pulse/direction
signals (RS 422)
Encoder
interface
OPT.2
+
µ
Fig. 1-2 Block diagram
General description
1-4
WDP3-01X Ident. no.: 00441109760
