July 2013 7.3 Relationship between speed input, position input and PWM output 1071
7.3 Relationship between speed input, position input and PWM output
On the CC 61xx there is a fixed assignment between speed encoder input,
position encoder input and PWM output. MP112.x is omitted for this
reason (special case: MP113.x). The selection of the encoder inputs and PWM
outputs is only via MP120.x/MP121.x.
When using a CC 61xx in conjunction with HEIDENHAIN inverters
When using a UEC
It is also possible with the CC 61xx to operate open-loop axes (counter axes)
or analog controlled axes (MP120 input values 1 to 8) via the position encoder
inputs.
Special case:
MP113.x
MP113.x is used to switch the speed encoder inputs for the operation of a
second spindle. The two speed encoder inputs must be on the same drive-
control motherboard.
If only one spindle is used, MP113.x = 0, and the assignment from the above
table is valid.
If, for example, two spindle motors are driven with one PWM output (and the
same power module) and the power can be switched over through a
contactor, the speed encoder input can be selected with MP113.x.
The error message C2A0 Encoder input <axis> appears if an invalid entry is
given for MP113.x.
Input of MP120.x/MP121.x:
PWM output
51 52 53 54 55 56
Input: Speed encoder X15 X16 X17 X18 X19 X20
Input: Position encoder
(input in MP110.x/MP111.x)
X201 X202 X203 X204 X205 X206
Input in MP120.x:
Speed output:
PWM output
80 81 82 83 84 85
Input: Speed encoder X15 X16 X17 X18 X19 X20
Input: Position encoder X201 X202 X203 X204 X205 X206
PWM output for the
spindle
Speed encoder input MP113.x input value
X51 X15 or X17 (0 or 15) or 17
X52 X16 or X18 (0 or 16) or 18
X53 X15 or X17 15 or (0 or 17)
X54 X16 or X18 16 or (0 or 18)
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