Operating instructions

7-110 Commissioning and Parameterization Rexroth IndraDrive
DOK-INDRV*-FU*********-IB01-EN-P
When switching on the 24 V supply voltage an automatic protocol
detection is activated when receiving signals via the serial interface.
A soon as either
• a valid ASCII start sequence
- or -
• a valid SIS telegram
was received the drive internally switches to the respective kind of
protocol.
• transmission rates of 9600 and 19200 baud
• 8-bit ASCII protocol
• no parity bit
• one stop bit
Note: There isn't any telegram frame used but the transmitted ASCII
signs are converted and interpreted. It is only necessary to
comply with a certain order.
• binary protocol
• checksum test (higher Hamming distance D)
• all telegrams are identified by an unequivocal start character ("0x02")
• defined structure of the telegram frame
• it is possible to activate motions (e.g. jogging)
Master Communication
General
• address assignment
→ communication address to be freely parameterized (via master
communication, serial and control panel) via parameter P-0-4025,
Drive address of master communication
• Baud rate PROFIBUS-DP
P-0-4079, Field bus: Baud rate
The baud rate used by the field bus is automatically determined and only
displayed in this parameter.
Note: By inputting "0" as baud rate it is possible to activate automatic
baud rate detection. In some cases this however might not
work correctly so that it is recommended to make a manual
input.
Open Loop
In operation without encoder (open-loop operation) the velocity control
loop is not closed in the drive, but the drive is operated in a velocity-
controlled way (without feedback) via open-loop U/f control.
Note: The method of open-loop/closed-loop motor control can be
selected via bit
14 of parameter P-0-0045, Control word of
current controller
.
Properties of ASCII Protocol
Properties of SIS Protocol