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Manual PD4-C (USB)
8 General concepts
Version: 1.4.1 / 22.07.2016 / FIR-v1626
30
The following table lists the bit combinations for the control word that lead to the corresponding state
transitions. An X corresponds to a bit state that is no longer to be considered. The single exception is
the fault reset: The transition is only requested by the rising flank of the bit.
Command
Bit in object 6040
h
Transition
Bit 7
Bit 3
Bit 2
Bit 1
Bit 0
Shutdown
0
X
1
1
0
1, 5, 8
Switch on
0
0
1
1
1
2
Disable voltage
0
X
X
0
X
6, 7, 9, 12
Quick stop
0
X
0
1
X
10
Disable
operation
0
0
1
1
1
4
Enable
operation
0
1
1
1
1
3
Fault reset
X
X
X
X
13
Holding torque in state "Switched On"
In the state "Switched On" no holding torque is build up by default. If a holding torque is necessary, the
value "1" needs to be written in the object 3212
h
:01
h
.
CAUTION
If the option "Holding torque in state Switched on" is enabled, it is possible that the motor gives a start
when switching the operating modes.
Status word
The following table lists the bit masks that describe the state of the motor controller.
Status word (6041
h
)
State
xxxx xxxx x0xx 0000
Not ready to switch on
xxxx xxxx x1xx 0000
Switch on disabled
xxxx xxxx x01x 0001
Ready to switch on
xxxx xxxx x01x 0011
Switched on
xxxx xxxx x01x 0111
Operation enabled
xxxx xxxx x00x 0111
Quick stop active
xxxx xxxx x0xx 1111
Fault reaction active
xxxx xxxx x0xx 1000
Fault
The motor controller reaches the "Switch on" state after it is switched on and the self-test is successful.
Operating mode
h
) becomes active in the "Operation enabled" state. The actually active
operation mode is displayed in 6061
.
The operating mode can only be set or changed in the following states (see states enclosed by a
dashed line in the diagram):
•
Switch on disabled
•
Ready to switch on
•
Switched on
During operation ("Operation enabled"), it is not possible to change the operating mode. The "Fault"
state is left when bit 7 in object 6040
h
(control word) is set from "0" to "1" (rising flank).