Fieldbus control through a fieldbus adapter 637
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 Value STATE/Description
0 Off1 control 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 Off2 control 1 Continue operation (OFF2 inactive).
0 Emergency OFF, coast to a stop.
Proceed to OFF2 ACTIVE, proceed to SWITCH-ON INHIBITED.
2 Off3 control 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.
3 Run 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 06.18 Start inhibit status word and 06.25 Drive
inhibit status word 2.
0 Inhibit operation. Proceed to OPERATION INHIBITED.
4 Ramp out zero 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).
5 Ramp hold 1 Enable ramp function.
Proceed to RAMP FUNCTION GENERATOR: ACCELERATOR
ENABLED.
0 Halt ramping (Ramp Function Generator output held).
6 Ramp in zero 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.
7 Reset 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.
8 Inching 1 1 Accelerate to inching (jogging) setpoint 1.
Notes:
• Bits 4…6 must be 0.
• See also section Jogging (page 92).
0 Inching (jogging) 1 disabled.
9 Inching 2 1 Accelerate to inching (jogging) setpoint 2.
See notes at bit 8.
0 Inching (jogging) 2 disabled.
10 Remote cmd 1 Fieldbus control enabled.
0 Control word and reference not getting through to the drive, except
for bits 0…2.
11 Ext ctrl loc 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.
12 to 15 Reserved.
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