Lincoln Electric IM573 - Manual (Page 27)

CALIBRATION
27 27
POWER
ROBOTIC PW450 CURRENT CALIBRATION (continued)
PROCEDURE
1. Install the Test and Calibration Overlay and
apply power to the machine. See Figure 10.
2. Press the Manual Procedure Entry Key (64).
The machine should display the following:
PROCESS 1 SETUP
1-0
3. Toggle the Arrow Keys (100 and 101) until
the display reads:
PROCESS 1 SETUP
1-6
4. Trigger the PW450 and apply the load. (See
EXTERNAL TRIGGERING CIRCUIT) on the
next page.
The machine’s output terminals will be electri-
cally “HOT” when the trigger circuit is
activated.
5. Adjust the potentiometer until the reference
(external ammeter) reads 304 amps +/- 1.0
amps. The load voltage should be greater
than 15 volts but less than 35 volts.
6. Remove power to the machine.
7. If necessary re-install the control board.
8. Replace the machine case parts.
WARNING
(32)
(34)
(36)
(64)
(33)
(35)
(37)
(65)
(67)
(96)
(97)
(98)
(99)
(100)
(101) (132) (133)
(128)
(130)
(129)
(131)
Figure 10 – TEST AND CALIBRATION OVERLAY