SETUP
1
powermax
1250
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.
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