SETUP
1
powermax1250 Operator Manual 3-11
Machine interface connection
Signals for arc transfer and start are available
through the machine interface connection on
the rear of the power supply. Plug the machine
interface cable (part number 023206) into the
connector on the rear panel.
Powermax1250 power supplies sold as part of
the PowermaxEdge® package include a
machine interface cable with a voltage divider.
Refer to the following table when connecting
the machine interface cable to the cutting
machine.
Signal Start (start plasma) XFER PowermaxEdge
(start machine motion) (Interface cable with
voltage divider)
Type: Input Output Output
Notes: Normally open. 18VDC Normally open. Dry contact Divided arc signal of
open circuit voltage at closure when arc transfers. 50:1
START terminals. Requires 120VAC/1A maximum at
dry contact closure to activate. machine interface relay or
switching device (supplied
by customer).
Rear panel
3, 4 12, 14 5, 6
sockets
Cable wires Green, black Red, black Black, red
ON/OFF pendant connection
For the machine torch (T80M), inputs for arc start are available through the machine interface
connection on the rear of the power supply. Plug the Hypertherm remote pendant (see
Accessories
in Section 5,
Maintenance and parts
, for part numbers) into the connector on the
rear panel.
WARNING
The ON/OFF remote pendant will not operate when a hand torch is installed.