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By default data compression is off and therefore the control word will be cast as 32 bit
NOTE
with bits 16-31 reserved.
Table 8.2 Control word bit functions
Bit
Function Description
0
ENABLE
1
RUN FWD
2
JOG FWD
3
RUN REV
4
FWD REV
5
6
7
8
REMOTE
9
JOG REV
10
Reserved
11
Reserved
12
13
RESET
KEYPAD
14
WDOG
15
Reserved
46
Set to 1 to enable the drive. Resetting to 0 will immediately disable the drive,
and the motor will coast to a stop. The external HARDWARE ENABLE signal
must also be present before the drive can be enabled.
Set to 1 (with ENABLE set to 1) to run the motor in the forward direction. When
reset to 0, the drive will decelerate the motor to a controlled stop.
Set to 1 to jog the motor forward. This signal needs to be used in conjunction
with the ENABLE bit. This signal is overridden by a RUN, RUN REV or RUN
FWD signal.
Set to 1 (with ENABLE set to 1) to run the motor in the reverse direction. When
reset to 0, the drive will decelerate the motor to a controlled stop.
Set to 1 to select the reverse direction. Set to 0 to run in the forward direction.
The RUN signal is used to start and stop the motor.
Set to 1 to run the motor. FWD REV is used to select the direction of motor
RUN
rotation. When reset to 0, the drive will decelerate the motor to a controlled
stop.
Set to 1 to allow the sequencing bit in the drive to be latched. Refer to the drive
NOT
Advanced User Guide for more details. If NOT STOP is zero, all latches are
STOP
cleared and held at 0. Pr 06.004 must be correctly set for this to function.
Set to 1 to enable fieldbus control of the drive Control Word. The Control Word
AUTO
Enable (Pr 06.043) must also be set to 1. When reset to 0, the drive will oper-
ate under terminal control.
Set to 1 to select digital speed reference 1 (Pr 01.021), and to 0 to select ana-
log reference 1 (Pr 01.036). REMOTE directly controls Pr 01.042, so reference
selector (Pr 01.014) and preset selector (Pr 01.015) must both be set to 0
(default) for the REMOTE bit to work properly.
Set to 1 to jog the motor in reverse. This signal needs to be used in conjunction
with the ENABLE bit. This signal is overridden by a RUN/RUN REV/RUN FWD
command.
Set to 1 to trip the drive at any time. The trip display on the drive will be "Con-
TRIP
trol Word" and the trip code will be 35. AUTO (b7) has no effect on this func-
tion. The trip cannot be cleared until TRIP is reset to 0.
A 0-1 transition of the RESET bit will reset the drive from a trip condition. If the
reason for the trip is still present, or another fault condition has been detected,
the drive will immediately trip again. When resetting the drive, it is recom-
mended to check the status word to ensure that the reset was successful,
before attempting to re-start the drive.
This watchdog is provided for an external keypad or other devices where a
break in the communication link must be detected. The watchdog system can
be enabled and/or serviced if this bit is changed from zero to one while the
control word enabled.
Once the watchdog is enabled it must be serviced at least once every second
or an "Watchdog" trip will occur. The watchdog is disabled when a "Watchdog"
trip occurs, and so it must be re-enabled when the trip is reset.
SI-DeviceNet User Guide
Issue Number: 2
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