8.1.3 Power supply
5 V power supply
5 V power supply
Data Unit min. typ. max.
DC output voltage +5V V 5.0 5.25
Output current mA
500
1)
1) The sum of the power consumptions of all connected encoder
systems (5 V / 12 V) should not exceed 6 W..
Tab. 8-1: 5 V power supply
Switching off power supply via
firmware
The "parking axis" firmware command (C1600) causes the encoder power
supply to be switched off.
Sense function
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
12 V power supply
Data Unit min. typ. max.
Voltage for encoder supply V 10.7 12 12.3
Output current mA
500
1)
1) The sum of the power consumptions of all connected encoder
systems (5 V / 12 V) should not exceed 6 W..
Tab. 8-2: 12 V power supply
Switching off power supply via
firmware
The "parking axis" firmware command (C1600) causes the encoder power
supply to be switched off.
Resolver power supply
Resolver encoder system
Data Unit min. typ. max.
AC output voltage VCC_Resolver
(peak-peak value)
V 8.3 10 12
Output frequency sine kHz 8
Bosch Rexroth AG DOK-INDRV*-CXX02******-PR03-EN-P92/143
IndraDrive Control Sections CSB02, CSE02, CSH02, CDB02
Technical data - functions
Courtesy of CMA/Flodyne/Hydradyne ▪ Motion Control ▪ Hydraulic ▪ Pneumatic ▪ Electrical ▪ Mechanical ▪ (800) 426-5480 ▪ www.cmafh.com
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