82 • vacon description of parameters
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7
1733 Encoder supervision
(2.6.23)
Encoder fault software mode supervision
0= Enabled
1= Disabled
Encoder fault supervision is based on hardware detection of missing individual signals
plus a software supervision that can detect if a cable is disconnected. Software super-
vision may cause nuisance trips if the drive runs against the current limit at standstill.
For the special cases when this action is required, the software supervision functionality
can be disabled.
1734 Lock response
(2.6.24)
Response to the lock error fault. Only used in closed loop control.
0= No action
1= Warning
2= Fault, stop mode based on P2.4.7 Stop function
3= Fault, coast
1735 Lock frequency difference
(2.6.25)
Allowed maximum difference between output frequency and the encoder feedback
frequency. The lock fault delay time given by ID1736 starts to count if the frequency
difference exceeds this parameter value.
1736 Lock Fault Delay
(2.6.26)
If freq. difference is higher than ID1735 in this time the lock fault is triggered.
1740 FB Data Out 1 and 2 Sel
(2.7.9)
Selector for output variable to be mapped to process data 1 and 2 output channels. Data
transfer of the two words is guaranteed coherent in time. Selection is made assigning
the ID value of the variable among those listed in Table 37. Only variables allocating 2
channels can be selected.
Note: To avoid channel allocation conflict, when using dual channel transfer of a 32 bit
variable, the parameters ID852 and ID853 must be set to 0.
1741 Synchronization ratio register selection
(2.7.10)
Selector that maps Ratio reference to two process data input channels.
Data transfer of the two words is guaranteed coherent in time.
Used for changing of the electrical gear ratio between Master/Follower. It is possible to
change the ratio during run in order to fine adjust the ratio.
0 PD0 low + PD1 high; low part on PD0, high part on PD1
1 PD1 low + PD2 high; low part on PD1, high part on PD2
2 PD2 low + PD3 high; low part on PD2, high part on PD3
3 PD3 low + PD4 high; low part on PD3, high part on PD4
4 PD4 low + PD5 high; low part on PD4, high part on PD5
5 PD5 low + PD6 high; low part on PD5, high part on PD6
6 PD6 low + PD7 high; low part on PD6, high part on PD7
7 PD7 low + PD8 high; low part on PD7, high part on PD8
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