ABB FCAN-01, Руководство пользователя

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72 Start-up
The start sequence for the parameter example above is given
below.
Control word:
•
Reset the fieldbus communication fault (if active).
•
7Eh (126 decimal) → SWITCH ON DISABLED
•
7Fh (127 decimal) → OPERATION ENABLED
ABB Drives communication profile with parameter-
configured PDO mapping
This example shows how to configure a speed control application
that uses the ABB drives profile.
The start/stop commands and references are according to the ABB
Drives profile. (For more information, see section ABB Drives
communication profile on page 100 .)
Reference 1 (REF1) value ±20000 (decimal) corresponds to the
reference set with parameter 19.01 (Speed scaling) in the forward
and reverse directions.
The minimum and maximum 16-bit integer values that can be
given through the fieldbus are -32768 and 32767 respectively.
12.03 Ext1 ctrl mode Speed Selects the speed control mode
for external control location
EXT1.
21.01 Speed ref1 sel AI1 scaled
2)
(Parameter 02.05)
Analog input as the source for
reference 1
1)
Automatically detected
2)
Example
PDO Word 1 Word 2 Length
Rx PDO1 6040h
Control word 6042h
Target velocity 32 bits
Tx PDO1 6041h
Status word 6044h
vl control effort 32 bits
Drive parameter Setting for ACS850
drives Description