Lincoln Electric IM10132 FLEXTEC 650 - Manual (Page 20)

B-2 OPERATION B-2
FLEXTEC™ 650
The FLEXTEC™ 650 is designed for the North
America and export markets and operates on 3 phase
380V, 460V, or 575V 50hz or 60hz power.
DUTY CYCLE
The FLEXTEC™ 650 is capable of welding at a 100%
duty cycle (continuous welding) at 650 amps rated
output. The 60% duty cycle rating is 750 amps (based
off of a ten minute cycle – 6 minutes on time and 4
minutes off time). The maximum output of the
machine is 815 amps.
The FLEXTEC™ 650 is also rated for Desert Duty,
elevated temperature operation, in a 55°C ambient.
The machine is de-rated for this application. (See
Table in the Installation Section.
DESIGN FEATURES
• Severe Duty Design for outdoor use (IP23 rating)
• Passive Power Factor Correction – reliably gives
88% power factor for lower installation costs.
• 91% Efficiency rating – reduces electrical utility
costs.
• Simple user interface - user interface is designed
with the operator in mind. Getting setup for the weld
is several clicks away and even the most novice
welder can be confident he is setup properly.
• F.A.N. (fan as needed). Cooling fan runs when the
output is energized and for a 5 minute cool down
period after output is disabled
• Thermal protection by thermostats with Thermal
Indicator LED.
• Reversible handles for ease of lifting and transport-
ing
• Multiple options for lifting / transporting: Reversible
handles; eyelet lifting bolts; and single forklift fork
access
• Error Codes display on LED screen for ease of trou-
ble shooting
• Electronic over current protection.
• Input voltage mis-connection protection.
• Utilizes digital signal processing and microprocessor
control.
• VRD™ (Voltage Reduction Device)- Enable this
function for reduced OCV in CC modes for added
safety.
OPEN CIRCUIT
VOLTAGE
REDUCED OPEN
CIRCUIT VOLTAGE
INPUT VOLTAGE
OUTPUT VOLTAGE
INPUT CURRENT
OUTPUT CURRENT
PROTECTIVE
GROUND
WARNING or CAUTION
Explosion
Dangerous Voltage
Shock Hazard
GRAPHIC SYMBOLS THAT
APPEAR ON THIS MACHINE
OR IN THIS MANUAL
U0
Ur
U1
U2
I1
I2
PRODUCT DESCRIPTION
The FLEXTEC™ 650 is a multi-process CC/CV DC
inverter and is rated for 650 amps, 44 volts at a 100%
duty cycle. The FLEXTEC™ 650 is intended for both
factory and field operation. It comes in a compact,
rugged case that is designed for portability and out-
door use with an IP23 environmental rating. The user
interface of the FLEXTEC™ 650 is simple and intu-
itive. Weld modes are selected via a 5 position selec-
tor switch. Volts and Amps are displayed on an easy
to view LED display, and the amps and volts are set
via a large output control knob. A hot start and an arc
control knob allow for finer tuning of the welding arc
for the application.