ABB ACSM1 - Page 193

Parameters and firmware blocks
193
60.03 LOAD GEAR MUL FW block: POS FEEDBACK (see above)
Defines the numerator for the load encoder gear function. See also section Load encoder gear
function on page 52.
Note: When load encoder gear function is set, the gear function defined by parameters 71.07 GEAR
RATIO MUL and 71.08 GEAR RATIO DIV must also be set.
-2
31
…2
31
- 1 Numerator for load encoder gear.
60.04 LOAD GEAR DIV FW block: POS FEEDBACK (see above)
Defines the denominator for the load encoder gear function. See parameter 60.03 LOAD GEAR MUL.
1…2
31
- 1 Denominator for load encoder gear.
60.05 POS UNIT FW block: POS FEEDBACK (see above)
Selects the unit and scaling for the position parameters. The scaling factor is equal to one revolution.
For positioning speed, acceleration and deceleration units, see parameter 60.10 POS SPEED UNIT.
Note: If translatory (m, inch) unit is selected, the range also depends on parameter 60.06 FEED
CONST NUM and 60.07 FEED CONST DEN settings.
(0) REVOLUTION Unit: revolution. Scaling factor: 1.
(1) DEGREE Unit: degree. Scaling factor: 360.
(2) METER Unit: meter. Scaling factor: according to parameters 60.06 FEED
CONST NUM and 60.07 FEED CONST DEN.
(3) INCH Unit: inch. Scaling factor: according to parameters 60.06 FEED
CONST NUM and 60.07 FEED CONST DEN.
60.06 FEED CONST NUM FW block: POS FEEDBACK (see above)
Defines, together with parameter 60.07 FEED CONST DEN, the feed constant for the position
calculation:
The feed constant converts rotational motion into translatory motion. The feed constant is the distance
the load moves during one turn of the motor shaft (2
πr), when linear positioning has been selected
with 60.05 POS UNIT (i.e. parameter is set to (2) METER or (3) INCH).
Note: Parameters 60.05 POS UNIT, 60.06 FEED CONST NUM and 60.07 FEED CONST DEN also
affect the positioning parameters. If the feed constant is changed, positioning references are
re-calculated and the limits are changed. However, the internal motor shaft references remain
unchanged.
1… 2
31
-1 Feed constant numerator.
60.07 FEED CONST DEN FW block: POS FEEDBACK (see above)
Defines, together with parameter 60.06 FEED CONST NUM, the feed constant for the position
calculation.
60.03 LOAD GEAR MUL
60.04 LOAD GEAR DIV
=
Load speed
Encoder 1/2 speed
60.06 FEED CONST NUM
60.07 FEED CONST DEN