Amperage and voltage adjustment – Miller Electric CBI 801D User Manual

Page 21

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OM-166 941 Page 16

A. Auxiliary Equipment Connections To Terminal

Strip 3T (Figure 4-2)

WARNING: Read and follow safety infor-
mation at beginning of entire Section 5-2
before proceeding.

Terminal strip 3T is provided to directly wire the auxiliary
power cord(s) into the unit. To make connections, pro-
ceed as follows:

1.

Remove plug from auxiliary equipment cord(s), if
applicable.

2.

Open and secure lower front door.

3.

Locate three strain reliefs on lower front panel.

4.

Insert leads from cord(s) through a strain relief.

5.

Connect leads to terminal strip 3T using terminal
information provided in Figure 4-4.

6.

Secure the cord(s) in the strain relief(s).

7.

Close and secure door.

B. Protection

Circuit breaker CB1 protects the 120 volts ac auxiliary
power terminals from overload. See Section 9-3 for CB1
location and resetting procedure.

SECTION 6 − OPERATOR CONTROLS

Engine Hours

Meter

Oil Temperature

Gauge/Switch

Oil Pressure

Gauge/Switch

Battery Ampere

Gauge

Fuel Gauge

Engine Control

Switch

Check Alternator

Light

Output

(Contactor)

Switch

Ammeter

Voltmeter

Remote Amperage &

Voltage Switch

Service Engine

Air Cleaner

Light

Amperage &

Voltage Adjustment

Control

Ref. ST-147 322-E

Ampere

Ranges

Switch

Figure 8-1. Operator Controls

6-1.

AMPERE RANGES SWITCH (Figure 6-1)

The Ampere Ranges switch provides two coarse am-
perage ranges. When in LOW OUTPUT, amperage
range is 100-350 amperes. When in HIGH OUTPUT,
amperage range is 300-800 amperes.

CAUTION: ARCING can damage switch
contacts.

Do not change the position of the Ampere
Ranges switch while welding or under load.

Arcing causes the contacts to become pitted
and eventually inoperative.

6-2.

AMPERAGE & VOLTAGE ADJUSTMENT
CONTROL (Figure 6-1)

A/V

AMPERAGE AND VOLTAGE

ADJUSTMENT

The AMPERAGE & VOLTAGE ADJUSTMENT control
adjusts welding amperage within range selected by Am-
pere Ranges switch.The scale surrounding the control
is calibrated in percent and does not indicate an actual
amperage or voltage value.

IMPORTANT: The AMPERAGE & VOLTAGE AD-
JUSTMENT control may be adjusted while welding.

6-3.

ENGINE CONTROL SWITCH (Figure 6-1)

The Engine Control switch has three positions: START,
RUN, and OFF.

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