Fieldbus control 353
State diagram
ABB Drives profile
To illustrate the operation of the state diagram, the following example (
ABB
DRV
LIM
implementation of the ABB Drives profile) uses the control word to start the drive:
• First, the requirements for using the
CONTROL
WORD
must be met. See above.
• When the power is first connected, the state of the drive is not ready to switch on.
See dotted lined path (
) in the state diagram below.
• Use the
CONTROL
WORD
to step through the state machine states until the
OPERATING
state is reached, meaning that the drive is running and follows the
given reference. See table below.
Step
CONTROL
WORD
Value
Description
1
CW = 0000 0000 0000 0110 This CW value changes the drive state to READY TO
SWITCH ON.
2
Wait at least 100 ms before proceeding.
3
CW = 0000 0000 0000 0111 This CW value changes the drive state to READY TO
OPERATE.
4
CW = 0000 0000 0000 1111 This CW value changes the drive state to OPERATION
ENABLED. The drive starts, but will not accelerate.
5
CW = 0000 0000 0010 1111 This CW value releases the ramp function generator
(RFG) output, and changes the drive state to RFG:
ACCELERATOR ENABLED.
6
CW = 0000 0000 0110 1111 This CW value releases the ramp function generator
(RFG) output, and changes the drive state to
OPERATING. The drive accelerates to the given reference
and follows the reference.
bit 0
bit 15
Содержание ACS320 series
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Страница 18: ...18 Safety ...
Страница 28: ...28 Operation principle and hardware description ...
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Страница 142: ...142 Program features Connection diagram example ACS320 xx xxxx x ...
Страница 282: ...282 Actual signals and parameters ...
Страница 358: ...358 Fieldbus control ...
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Страница 382: ...382 Maintenance and hardware diagnostics ...
Страница 407: ...Dimension drawings 407 Frame size R2 NEMA 1 Frame size R2 IP20 NEMA 1 3AUA0000051097 A ...
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Страница 412: ...412 Dimension drawings ...
Страница 413: ...Index Numerics A B C D E F G H I K L M N O P R S T ...
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