Hypertherm HD3070 Plasma Arc Cutting System w/ Automatic Gas Console - Manual (Page 265)

d-2 HD3070 with Automatic Gas Console Instruction Manual
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APPENDIX D
Introduction
This appendix will enable a technician to install the optional timer-counter to the HD3070 plasma cutting system.
The timer-counter consists of the timer-counter and control cable.
Installation
1. Mount the timer-counter for easy access, refer to Figure d-1 for dimensions. For fixed mounting of the timer-
counter, four mounting holes are located on the bottom.
2. Interface the timer-counter to the power supply with the current setpoint cable by referring to Section 3,
Installation, page 3-23 and Figure 3-19 and the current setpoint cable lengths and wire run list on Figure 3-20.
Operation
Controls and Indicators (Figure d-2)
Each LCD unit is self-powered by a three-volt lithium battery. When the battery weakens (three to five years) the
unit will operate erratically. Replace the faulty LCD unit.
• STARTS LCD Counter (w/Reset)
Indicates the number of arc starts.
• ARC TIME LCD Elasped Time Meter
Indicates the cumlative time that the arc is on hours.
• ERRORS LCD Counter (w/Reset)
Indicates the number of arc errors that have occured. Any of the following four error codes will cause the
error counter to increment. Refer to Section 5, Maintenance for more information on the error codes.
Lost Transferred Current During Ramp Up
Arc was extinguished after the current transferred to the workpiece, but before steady-state operation.
Lost Set Transferred Current
Arc was lost during steady-state operation.
Over Voltage During Steady-State Operation
During steady-state operation the measured arc voltage exceeded the programmed maximum allowable arc
voltage for the set current.
Lost Current During Ramp Down
Arc was lost during current ramp down, but before the programmed ramp down time had elapsed.
WARNING
High Voltage!
Power supply must be disconnected before installation.