MK Products Cobramatic II User Manual

Page 19

Cobramatic

II Owner's Manual - Page 12

27VAC I

NPUT

Set voltmeter to AC. Place negative on TP1 and positive on TP4; should have
27 to 30VAC at all times.

10V S

UPPLY

Place negative lead on TP3 and positive on TP5. Should have 10VDC with
trigger “ON” or “OFF”.

15V S

UPPLY

Place negative on TP3 and positive on TP2; should have 14.3 to 15.7VDC
at all times.

RIGGER

IGNAL

Place negative lead on TP3 and positive on TP8, should be high; press
trigger--should go low.

IRE

ORWARD

IGNAL

Place negative on TP3 and positive on TP9, should be high; press trigger--
should go low.

ORCH

OTOR

OLTAGE

Place negative on TP3 and positive on TP10. Press torch trigger and change
wire feed speed potentiometer--should vary from 0-27VDC.

NHIBIT

IRCUIT

Place negative on TP3 and positive on TP7, should be high; press trigger--
should go low.

Units with Timer Kit Installed (J9)

Follow above steps, except note the following changes:

Turn unit “OFF” and plug in the J9 connector.

Trigger signal high may only be 7VDC.

Inhibit circuit should be low at all times