Moog MSD User Manual

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MSD Servo Drive User Manual SERCOS II
41
[ Chapter 7 ]
7.1.3 Modulo weighting
If modulo weighting is preset via parameter S-0-0076 (“Position weighting“), parameters
S-0-0103 (“Modulo value“) and S-0-0294 (“Modulo value divisor“) determine the value
range (modulo range) within which the actual position may lie. If the travel distance
exceeds the modulo range, an overshoot of the actual position occurs.
Parameter Description
S-0-0103
MODULO VALUE
When modulo format is preset in the position weighting method (S-0-0076),
the modulo value (S-0-0103) defines the number range of all position data.
If the modulo value is exceeded, the drive and the master control system
perform the modulo calculation.
S-0-0294
MODULO VALUE DIVISOR
If the modulo value (S-0-0103) does not match the physical modulo value, the
modulo value can be corrected by the divisor S-0-0294. The effective modulo
value is the product of S-0-0103 and S-0-0294. A value of 1 renders the
“modulo value divisor” parameter ineffective.
Table 7.5 Scaling parameter for position weighting
7.1.4 Position polarity
In parameter S-0-0055 the polarities (preceding signs) of the specified position data
can be inverted according to the application. The polarities are not inverted within a
controlled system, but outside of it (at the input and output). A positive position setpoint
difference with non-inverted polarity means the direction of rotation is clockwise, look-
ing at the motor shaft.
Bit 0
Position reference
0 Not inverted
1 Inverted
Bit 1
Additive position setpoint
0 Not inverted
1 Inverted
Bit 2
Actual position 1
0 Not inverted
1 Inverted
Bit 3
Actual position 2
0 Not inverted
1 Inverted
Bit 4
Position limit values
0 Not inverted
1 Inverted
Bit 5-15
Reserved
Table 7.6 Setting of position polarity via parameter S-0-0055

Moog MSD Specifications

General

Brand	Moog
Model	MSD
Category	Servo Drives
Language	English