Siemens CB15, Руководство по эксплуатации

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PROFIBUS MODULE (CB15/CB155)
English
Operating Instructions
18
5.1.2 Process Data Area (PZD)
Control words and setpoints (Master
_
Inverter) or status words and actual values (Inverter
_
Master) can be
transmitted with the process data.
The order of the elements (words) in the process data area is always the same.
PZD1 PZD2
PZD1 = 16 Bits PZD2 = 16 Bits
PZD1 PZD2
Task frame
(Master _ Slave)
Control word
(STW)
Main setpoint
(HSW)
Reply frame
(Slave _ Master)
(Device) status word
(ZSW)
Main actual value
(HIW)
Process Data Area
5.1.2.1 Control Word (STW)
The control word is identical to the definition in the PROFIBUS ‘variable speed drives’ profile |3|.
Master -> Slave
STW HSW
Bit No. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Control Word (Bit 0)
Bit Value Meaning Notes
0 1
0
ON
OFF1
Switches converter to ‘ready for operation’ state; direction of rotation
must be defined in bit 14.
Shutdown, deceleration ramp, pulse disable at f < fmin.
1 1
0 Condition for operation
OFF2 OFF2 command is cancelled.
Immediate pulse inhibit, drive coasts.
2 1
0 Condition for operation
OFF3 OFF3 command is cancelled.
If programmed deceleration < 10 s (P003 < 10) at half the deceleration
time, if P003 > 10 in 5 s.
3 1
0 Operation enabled
Operation disabled Control and inverter pulses are enabled.
Control and inverter pulses are disabled.
4 1
0 Condition for operation
Ramp generator disabled Ramp generator is enabled.
Output of ramp generator is set to 0 (fastest possible deceleration),
inverter remains in ON state.
5 1
0 Ramp generator enabled
Stop ramp generator
Freezes the setpoint currently defined by the ramp generator.
6 1
0 Setpoint enabled
Setpoint disabled Selected value at the ramp generator input is activated.
Selected value at the ramp generator input is set to 0.
7 1
0
Acknowledge
No meaning
Fault message is acknowledged on positive edge, inverter
subsequently switches to ‘start disable’.
8 1
0 Jog clockwise
No jog CB15/CB155: Jog clockwise (only in conjunction with bit 0).
9 1
0 Jog counter-clockwise
No jog CB15/CB155: Jog counter-clockwise (only in conjunction with bit 0).