Lenze EVS9332xK - Manual (Page 290)

Function library
Function blocks
3.2.83 Homing function (REFC)
3−262
l
EDSVS9332K−EXT EN 4.0
3.2.83.1 Homing
There are different possibilities of homing the drive:
l "Setting the reference once" is carried out for commissioning. For this, you enter the current
distance [s−units] of the tool to the machine zero point in C1367/1. This proecedure is
reasonable for machines with risk of collision).
– The function is carried out via the CCTRL or CCTRL2 function blocks. (
¶ 3−71 or 3−79)
l A homing usually is carried out once after mains connection. By this, the home position of the
drive is found automatically. A homing is carried out via
– the REFC function block
– the CCTRL or CCTRL2 function blocks with the function "Set reference dynamically".
( ¶ 3−69 or 3−77)
Profile generator
The homing speed profile can be adapted to the application.
v
t
Referenzpunkt-Offset C0934
Nullimpuls Referenzpunkt
C0935
C0936
C0936
REF-MARK
Fig. 3−213 Homing speed profile
Code Meaning Note
C0930 Encoder−gearbox factor numerator (motor speed) Setting is required only if the actual value encoder is not
mounted to the motor
C0931 Encoder−gearbox factor denominator (encoder speed)
C0933 Selection of the edge of the touch probe signal at X5/E4 Regarding the homing modes with touch probe functionality,
the TP edge is the reference point for the home position offset
C0934 Homing point offset = number of increments after the zero
pulse This reference applies: 65536 inc = 1 revolution. Selection up
to 2140000000 inc possible
C0935 Homing speed Entry in [%] of n
max
(C0011)
C0936 Homing acceleration/deceleration time Linear ramps
C0926/3 REFC−ACTPOS, current actual position Read only
C0926/4 REFC−TARGET, current target position Read only
The profile generator calculates the speed profile from the set profile parameters.
l Parameter changes are possible during homing.
– C0935 and C0936 become effective if REFC−ON = LOW.
l The drive should not be operated at the torque limit (MCTRL−MMAX = HIGH), otherwise the
drive cannot follow the speed profile.
– Increase acceleration / deceleration time C0936 until MCTRL−MMAX is no longer activated.
l The phase controller in the MCTRL function block must be switched active.