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Contents of the fieldbus Control word (ABB Drives profile)
The upper case boldface text refers to the states shown in the state diagram (page
639).
Bit
Name
0
Off1 control
1
Off2 control
2
Off3 control
3
Run
4
Ramp out zero
5
Ramp hold
6
Ramp in zero
7
Reset
8
Inching 1
9
Inching 2
10
Remote cmd
11
Ext ctrl loc
12 to 15 Reserved.
Fieldbus control through a fieldbus adapter 637
Value STATE/Description
1
Proceed to READY TO OPERATE.
0
Stop along currently active deceleration ramp. Proceed to OFF1
ACTIVE; proceed to READY TO SWITCH ON unless other interlocks
(OFF2, OFF3) are active.
1
Continue operation (OFF2 inactive).
0
Emergency OFF, coast to a stop.
Proceed to OFF2 ACTIVE, proceed to SWITCH-ON INHIBITED.
1
Continue operation (OFF3 inactive).
0
Emergency stop, stop within time defined by drive parameter.
Proceed to OFF3 ACTIVE; proceed to SWITCH-ON INHIBITED.
WARNING: Ensure motor and driven machine can be
stopped using this stop mode.
1
Proceed to OPERATION ENABLED.
Note: Run enable signal must be active. If the drive is set to receive
the Run enable signal from the fieldbus, this bit activates the signal.
See also parameters
inhibit status word
0
Inhibit operation. Proceed to OPERATION INHIBITED.
1
Normal operation. Proceed to RAMP FUNCTION GENERATOR:
OUTPUT ENABLED.
0
Force Ramp function generator output to zero. The drive will
immediately decelerate to zero speed (observing the torque limits).
1
Enable ramp function.
Proceed to RAMP FUNCTION GENERATOR: ACCELERATOR
ENABLED.
0
Halt ramping (Ramp Function Generator output held).
1
Normal operation. Proceed to OPERATING.
Note: This bit is effective only if the fieldbus interface is set as the
source for this signal by drive parameters.
0
Force Ramp function generator input to zero.
0=>1
Fault reset if an active fault exists. Proceed to SWITCH-ON
INHIBITED.
Note: This bit is effective only if the fieldbus interface is set as the
source of the reset signal by drive parameters.
0
Continue normal operation.
1
Accelerate to inching (jogging) setpoint 1.
Notes:
• Bits 4...6 must be 0.
• See also section
0
Inching (jogging) 1 disabled.
1
Accelerate to inching (jogging) setpoint 2.
See notes at bit 8.
0
Inching (jogging) 2 disabled.
1
Fieldbus control enabled.
0
Control word and reference not getting through to the drive, except
for bits 0...2.
1
Select External Control Location EXT2. Effective if control location is
parameterized to be selected from fieldbus.
0
Select External Control Location EXT1. Effective if control location is
parameterized to be selected from fieldbus.
06.18 Start inhibit status word
2.
Jogging
(page 92).
and
06.25 Drive
- Quick Links:
- Fault and Warning Messages, Data Logging
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