AUTO-CUT 300 - Victor Technologies
AUTO-CUT 300 - Victor Technologies
AUTO-CUT 300 - Victor Technologies
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CNC Input / Output Descriptions<br />
E-Stop input— Requires closed connection rated for 35ma. @ 20VDC for unit to operate. Factory installed jumper between<br />
TB1-1&2 must be removing when connecting user supplied E-Stop circuit.<br />
4 Start/Stop input—Switch (momentary or sustained) rating 35ma. @ 20 VDC<br />
Start / Stop circuit configurations. Momentary Start / Stop (Latched) is only available at TB1.<br />
SUSTAINED START / STOP<br />
START / STOP<br />
TB1-5<br />
TB1-6<br />
MOMENTARY START / STOP<br />
STOP<br />
TB1-4<br />
START<br />
TB1-5<br />
TB1-6<br />
Divided Arc Voltage output — Arc Voltage signal is isolated from plasma supply, however (-) is common with other<br />
isolated CNC signals. Max Divided Arc Voltage signal level depends on actual arc voltage times divide ratio however<br />
can not exceed approximately 12 V.<br />
3 Analog Current Control input— Analog Current Control includes analog isolation module, separate isolation<br />
module not usually required however it’s low input is common with the other isolated CNC inputs. Scaling of Analog<br />
Current Control input is 0V = 0A, 10V. = MAX output and is linear in between. However MIN output is 10A. User is<br />
responsible for setting correct analog voltage to maintain at least 10A output. To use Analog Current Control on the<br />
I/O PCB set SW 11 to down position and on the CPU PCB set SW8-2 ON (up).<br />
Hold Start input—Normally open, close to hold start. Circuit rating 10 ma. @ 20VDC. Delays pilot ignition, gas<br />
preflow continues. Used for synchronizing starts when multiple plasma supplies are used on same cutting table. User<br />
supplies circuit to keep Hold Start inputs active until all torches have found height.<br />
Preflow On input— Normally open, close to start preflow prior to normal START signal. Circuit rating 10 ma. @<br />
20VDC. Torch Height Controls (THC) normally issue START signal to plasma supply after torch height has been<br />
found. Then the plasma takes 1-2 seconds (or more) to perform preflow before igniting pilot. Some THCs have an<br />
output that can start preflow early during height finding saving 1-2 seconds on each cut.<br />
Pilot On output – Relay contacts rated 1A @ 120 VAC / 28 VDC. Contacts close when pilot on. Can be wired parallel<br />
with Ok to Move contacts to start machine motion when pilot established. Used when starting over holes. Starting over<br />
holes requires setting SW8-1 ON (up) on the CPU PCB for extended pilot time. Using extended pilot time to start over<br />
holes or for cutting over holes will reduce parts life.<br />
OK to Move output — Active when cutting arc is established, arc is transferred. Used to signal cutting table to start<br />
X-Y motion. Relay contacts rated 1A @ 120 VAC or 28 VDC when SW6 set for contacts. When SW6 is set for DCV, output<br />
supplies 15-18 VDC @ 100 ma. May be wired parallel with Pilot On to start cutting machine motion as soon as pilot<br />
established.<br />
Manual 0-4817 Auto-Cut <strong>300</strong> A-8 APPENDIX