Functions and Technical Specifications
4-4
EM 148-FC
Frequency Converter
A5E00065321-03
Table 4-2
Structure of the control word, continued
Bit
Remarks
Value
Description
9
No inching to the
left
0
Terminate inching mode to the left
Inching to the left
1
Start inching mode to the left (see Section 4.3)
10
Process data
invalid
0
Control word and setpoint value of master
invalid (except control bits 1 and 2)
Process data
invalid
1
Control word and setpoint value of master
invalid
11
No effect
0
Clockwise rotation
1
Direction of rotation of the motor
12
No effect
0
Counterclockwise
rotation
1
Direction of rotation of the motor
13 to 15
–
Always
“0”
No meaning
4.1.2
Input data object (feedback interface)
Table 4-3
Structure of the input data object
Address
Description
Word 0 (bytes 0 and 1)
Status word (see below)
Word 1 (bytes 2 and 3)
Actual value of the motor frequency (resolution 0.01 Hz)
The bits in the status word return the status of the Frequency Converter. The
status word is divided up into bytes and bits as follows:
Word 0
Byte 0
Byte 1
Bit 0
Bit 15
Table 4-4
Structure of the status word
Bit
Description
Value
Remarks
0
Not ready to be
switched on
0
Ready to be
switched on
1
Power supply switched on, converter initialized
and switched off
1
Not ready for
operation
0
Possible causes: AUS1, AUS2 or AUS3,
starting lockout or a fault
Ready for
operation
1
Converter switched on, no problems
Содержание SIMATIC EM 148-FC
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Страница 66: ...Mode of Functioning 5 10 EM 148 FC Frequency Converter A5E00065321 03 ...
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