Siemens MICROMASTER 420 Reference Manual page 62

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Table 3-7
Practical Examples
a.
b.
c.
d.
e.
a.
b.
c.
d.
e.
To change the JOG direction without stopping, use control bits 8 and 9. For
example, 067E 0000 after 057E 0000 will cause the inverter to change JOG
direction from left to right without stopping.
Using P2012 (level 3) it is possible to define the length of the PZD telegram from 0
to 4 words. In this case the PZD3 of the task telegram is another setpoint (HSW2)
which could be freely connected using BiCo. Similarly the PZD4 is a second
control word for the inverter. This has no specific meaning, but the individual bits
can be freely connected using BiCo to realize functions such as "Use Jog ramp
times" etc. The example "Using BiCo with USS" should give an indication of how
this can be achieved.
USS Broadcast mode allows all slaves to be addressed with a single telegram,
thus allowing groups of inverters to be started and stopped simultaneously.
54
P0700 must be set to 4 or 5 (USS via RS232 or RS485 respectively)
P1000 must be set to 4 or 5 (USS via RS232 or RS485 respectively)
Send PZD command 047E 3333 (hex).
The reply telegram should be FA31 0000.
If the BOP is connected, r0000 should display flashing 40.00 Hz
Send PZD command 047F 3333 (hex).
The inverter should now run up to 40.00 Hz using the ramp rate set in P1120.
To stop the inverter send 047E 0000 (hex) or 047E 3333 (hex)
P0700 must be set to 4 or 5 (USS via RS232 or RS485 respectively)
The inverter must be stopped and ready to run.
To achieve this send the PZD command 047E 0000 (hex).
The inverter should reply with FA31 0000 (hex)
To JOG RIGHT send 057E 0000 (hex)
To JOG LEFT send 067E 0000 (hex)
To STOP send 047E 0000 (hex)
MICROMASTER 420 Reference Manual
Issue A1

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