Tweco 15XC Merlin - Manual (Page 54)

OPERATION 4-20 Manual 0-2251
The corner slowdown feature provides an output current
reduction in to correspond with the reduction in torch
travel speed as a mechanized torch moves through a
corner. When activated by CNC or other control device,
the corner slowdown eliminates excessive metal removal
in corners.
Normally open (NO) contacts (supplied by the control
device) close when the torch travel speed decreases
through a corner. When the contacts close, power supply
output drops to a pre-set current level.
A two-pole DIP switch in the remote operator control
panel PC board allows the corner slowdown to operate
with normally closed (NC) contacts in the control device if
desired.
Corner slowdown adjustment is located on the remote
operator control panel (see Section 4.1, Operating Con-
trols).
The control is factory set fully counter-clockwise for
minimum 50 amps output during corner slowdown. Turn
the control clockwise to increase corner slowdown output.
When the control is turned fully clockwise, corner slow-
down output is increased to a maximum 150 amps.
To view the corner slowdown setting, press and hold the
stop control. The expected CSD output level will be dis-
played on the ammeter.
In the PAK 15XC, the corner slowdown setting is inde-
pendent (not a percentage) of the main current setting. For
example, if CSD current is set to 100 amps, and main
cutting current is set to the minimum 50 amps, the actual
current level would actually increase through the CSD
cycle.
For electrical connections, refer to Appendix 4, CNC
Interface.
4.7 MACHINE TORCH OPERATION (continued)
Corner Slowdown (CSD)
NOTE
Corner Slowdown Settings
NOTE