Mitsubishi 700 Series

PROTOCOL-SPECIFIC INFORMATION
232
9.9.5.2 PROFIdrive Control and Status Words
The control word, STW1, is the principal means for controlling the drive. It is sent by the controller (PLC)
to the device (inverter). The bitmapping for the control word is described in Table 54. The status word,
ZSW1, returns status information from the inverter to the controller. The bitmapping for the status word
is described in Table 55.
Table 54: STW1 Control Word Mapping
Bit
Value
Significance
Description
0
1
ON
Run command ON
0
OFF
Run command OFF
1
1
ON2
No coast stop
0
OFF2
Coast to a stop
2
1
ON3
No quick stop
0
OFF3
Quick stop
3
1
Enable Operation
Enable inverter operation
0
Disable Operation
Disable inverter operation
4
1
Enable Ramp Generator
Enable the ramp frequency generator (RFG)
0
Disable Ramp Generator
Hold the output frequency to 0 Hz
5
1
Unfreeze Ramp
Generator
Unfreeze the RFG
0 Freeze Ramp Generator
Freeze the RFG with the current output
frequency