Tweco N7500 - Manual (Page 18)

SYSTEM COMPONENT DESCRIPTION 3-2 Manual 89250890
N7500 SYSTEM COMPONENT DESCRIPTION
Item Fitting Function
1
Travel System
Power Connector
Two (2) 4 amp AC power receptacles provide AC power for a travel system
if needed, 110 VAC or 220 VAC. The Remote Pendant controls when these
receptacles receive AC power through the Remote Pendant travel delay
circuitry. Only the AC power voltage (110V or 220V from the Input Power
AC) that the Control Box is connected to will be delivered.
2 Air Out Conn.
Delivers compressed shop air to the Torch Head when the START “Start”
button is pressed on the Remote Pendant.
3
Connector to
Torch Head Elec-
trode Motor
Delivers the signal from the Control Box to the Torch Head to either
feed or retract the electrode to maintain the preset arc voltage.
4
Remote Pendant
Connector
Links the Remote Pendant to the Control Box to initiate start/stop of
the gouging operation.
5
Circuit Breaker
w/reset
Circuit breaker reset push button for 110 VAC and 220 VAC AC Travel
System Power Connector receptacles.
6 ON/OFF switch
Control Box ON/OFF control switch with built in 5 amp circuit breaker
and reset.
7
Input and Output
DC Power Conn. Output and Input DC (+) positive power buss connections.
8 Air In Conn. This port accepts compressed shop air to the Control Box.
9
Power Supply
Connector
Links the Control Box to the Power Supply. On demand from the Re-
mote Pendant the internal contactor of the Power Supply can be closed
and opened to deliver the current to the Torch Head.
10 Input Power (AC) Delivers AC voltage to the Control Box from a standard wall receptacle.
11 Signal Wire Conn. Allows the Control Box to detect open circuit voltage when the Power
Supply contactor is closed.
12
Control Box Hold
Down Fixture
Hold down fixtures located on both sides of the Control Box to allow
fastening to a base.
13
Remote Pendant
Cradle
Secure holding fixture for Remote Pendant.
Table 3-2: Control Box Features
NOTE
The 110V and 220V power supply receptacles may be used to run any device that has the same line-
voltage requirements and that require “ON-OFF” or “Start-Stop” control. However, any such device
must be rated with a maximum current draw of 4 amperes.