Danfoss MCO 350 Operating Instructions Manual page 67

Syncronising Controller MCO 350 Operating
Instructions
Parameter No. 30-03
Home speed: Set the speed (% of maximum speed) at which Homing is to be made. Positive
values for clockwise rotation, negative values for counter-clockwise rotation.
Parameter No. 30-04
Home force function:
0 = The homing only has to be carried out after power up
1-3 = The homing has to be carried out before every sync start
Parameter No. 33-13
Accuracy: Record a value (quad counts) for a tolerance within which the slave position may deviate
from the position of the master. With a negative value the synchronising error (parameter 1993)
show the error with a sign.
Parameter No. 33-24
Marker quantity Fault: Inaccuracy: Record the number of marker signals to generate a Fault signal.
Parameter No. 33-25
Marker quantity Ready: Accuracy: Record the number of marker signals to generate a Ready
signal.
Parameter No. 19-05
Gear ratio No.: Record the number of the gear ratio that is to be displayed in Parameters 1906 to
1907. First set the number of the gear ratio, then the necessary values for this gear ratio can be
set in Parameters 1906 and 1907. The next gear ratio is then selected in Parameter 1905 and the
same procedure is repeated.
Parameter No. 19-06
Gear ratio numerator: Enter here the numerator value of the gear ratio. The value corresponds
to the encoder pulses of the slave drive. To make fine adjustment possible by means of inputs 32
and 33 a ratio of for example 7:16 must be programmed as 7000:16000.
Parameter No. 19-07
Gear ratio denominator: Record the denominator value of the gear ratio. This value corresponds
to the master pulses.
Parameter No. 19-10
Fixed Offset: Record a fixed position offset for the selected gear ratio (quad counts). You use this
value to specify the position deviation between slave and master. During operation you can change
the value by means of inputs 32 and 33. Note: Offset is related to the master position. Offset
related to the slave position can be calculated as follows:
O ffset
Parameter No. 19-11
Step time: Record the delay in ms from one frequency change to another (hold mode) and from
one gear ratio numerator factor change to another (synchronisation mode) when there is a signal
on terminal 32 or 33.
Parameter No. 19-12
Step width: Record a value to specify the position displacement between slave and master.
Parameter No. 19-13
O ffset x Par
. 738
slave
_ =
Par
. 739
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4. Synchronisation
4
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