Lenze EVS9332xK - Manual (Page 354)

Function library
Function blocks
3.2.102 Welding bar control (WELD1)
3−326
l
EDSVS9332K−EXT EN 4.0
Phase 4
Add a standstill phase at the end of the motion profile.
Fig. 3−262 Profile characteristic after entering the profile data at corresponding line speed
The selected welding time is converted to a distance.
Due to the welding time set (WELD1−TIME) the opening phase (WELD1−LEN−O) is automatically
delayed by the preselected welding time. This automatically reduces the standstill phase at the end
of the profile. The phases 1 and 3 are not influenced. When the line speed increases, the standstill
phase at the end of the profile is automatically reduced.
Interconnection and parameterisation of the function blocks
For implementing the welding bar function, the function block CDATA is required with a profile stored
accordingly. For this purpose, select the basic configuration C0005 = 11XXX. In this basic
configuration the function blocks CDATA, WELD1 and CCTRL are already included:
l The profile data in CDATA determine the motion profile (path profile) of the welding bar.
l The function block WELD1 controls the welding time. The welding time set in WELD1−TIME
serves to keep the welding bar in welding position, independent of the master speed.
l The function block CCTRL converts the path information to a rotor position at the motor.
Interconnection of inputs and outputs
(
STOP!
The welding bar control can only process positive master phases (see 1444/1 and
1445/1). If negative master angles are selected, the drive does not move!
CDATA-XPOS
CDATA-LEN1
CDATA-LEN2
CDATA-ACTLEN
FCODE-474/1
WELD1
LEN-C
XIN
LEN-O
LEN
TIME
ON
DIR-ERR
XOUT
T-ERR
BREAK
CDATA-XIN
DIGOUT4
fb_weld1_2
Fig. 3−263 Connection of WELD1 in the basic configuration C0005 = 11000
Input CDATA−XIN must be selected as master value input for function block CDATA.