Lenze EVS 9300 series, System Manual

Page: 157 / 504

Configuration
Basic configurations
8.2.5 Phase synchronism
8-31
L
EDSVS9332S-D11 EN 3.0
8.2.5.7 Profile generator
The speed travel profile for homing is generated via a profile generator. During the homing process
the target can be changed.
The profile generator generates a speed travel profile with linear ramps.
The following parameters must be entered:
Code Meaning Input
C0930 Gearbox ratio - numerator 1
…
65535
Numerator of the gearbox ratio between motor and position encoder (motor side)
C0931 Gearbox ratio - denominator 1
…
65535
Denominator of the gearbox ratio between motor and position encoder (encoder
side)
C0934 Home position offset -2,140,000,000
…
+2,140,000,000 (incr.)
Distance between zero pulse or touch probe and the home position during the
homing process
C0935 Homing speed 0.0001
…
100.0000 (% n
max
)
Motor speed during the homing process
C0936 Homing T
i
time 0.01
…
990.00 (sec)
Acceleration and deceleration time during the homing process.
Reference: 0 to n
max
, or n
max
to 0
The travel profile for homing is determined by entering a percentage speed and an integration time
(T
i
) for the ramps. The home position offset is directly entered in increments of the encoder system.
(In this way, complex conversions and the entry of e. g. the feed constant can be avoided)
The home position can be approached in three ways:
z Case 1: High home position offset
z
Case 2: Home position offset = 0; the zero pulse has not yet occurred during the homing
process
z Case 3: Home position offset = 0; the zero pulse has occurred once during the homing
process
High home position offset (case 1)
V
t
Reference
switch
Home position offset
Index pulse Home position
C0935
C0936
C0936
Fig. 8-10 Approaching the home position (case 1)