Power Supply - Bosch Rexroth IndraDrive CsDrive System with HCS01 Project Planning Manual

DOK-INDRV*-HCS01******-PR05-EN-P
Rexroth IndraDrive CsDrive Systems with HCS01

Power supply

5 V power supply
Switching off power supply via
firmware
Sense function
12 V power supply
Switching off power supply via
firmware
Resolver encoder system
5 V power supply
Data
DC output voltage +5V
Output current
1) The sum of the power consumptions of all connected encoder
systems (5 V / 12 V) should not exceed 6 W..
Tab. 7-1: 5 V power supply
The "parking axis" firmware command (C1600) causes the encoder power
supply to be switched off.
The EC encoder evaluation allows correcting the 5 V supply voltage at the
encoder. It is thereby possible, within certain limits, to compensate for voltage
drops on the encoder cable.
Functional principle: The current consumption of the connected encoder sys‐
tem generates a voltage drop due to the ohmic resistance of the encoder ca‐
ble (line cross section and line length). This reduces the signal at the encoder
input. The actual value of the 0 V encoder potential at the encoder is meas‐
ured via a separate "Sense" line (Sense-) and fed back to the drive controller.
Thus, the drive controller can influence the voltage of the encoder supply.
For correct "Sense" evaluation, the encoder supply lines "+5V"
and "GND_Encoder" have to have the same line cross section.
If the encoder has a "Sense-" connection, connect the "Sense"
line at this connection. A possibly existing "Sense+" connection is
not used.
If the encoder has no "Sense" connection, apply the 0 V encoder
potential to the "Sense-" line on the encoder side.
12 V power supply
Data
Voltage for encoder supply
Output current
1) The sum of the power consumptions of all connected encoder
systems (5 V / 12 V) should not exceed 6 W..
Tab. 7-2: 12 V power supply
The "parking axis" firmware command (C1600) causes the encoder power
supply to be switched off.
Resolver power supply
Data
AC output voltage VCC_Resolver
(peak-peak value)
Output frequency sine
Bosch Rexroth AG
Technical data of the components
Unit min. typ.
V 5.0
mA
Unit min. typ.
V 10.7 12
mA
Unit min. typ.
V 8.3 10
kHz 8
195/341
max.
5.25
500 1)
max.
12.3
500 1)
max.
12