Electronic Control - Model 350

Line Voltage (Input)

100,115, 208, or 230 VAC, ±13%, 50/60 Hz, single phase

Input Circuit Rating

100 to 115 VAC: 15A; 208 to 230 VAC: 8A

Operating Temperature Range

0 to 40°C

Weld Force

2 to 20 lbs, (0.9 to 9.1 Kg) (9 to 89 N)

Follow-up Weld Force

2 to 50 lbs, (0.9 to 22.7 Kg) (9 to 222 N)

Squeeze Period

1 to 999 msec

Weld Period

0.1 to 99.9 msec

Delay Period

0.1 to 99.9 msec

Follow-Up Force Period

1.0 to 9.9 msec

Up-Stop Position Inches (mm)

.006 to .999 (0.3 to 25.4)

Search Position Inches (mm)

.005 to .998 (0.2 to 25.3)

Graphical Weld Display

Graphical display of programmed weld force profile and actual displacement.

Weld Force Profiles

The user can write/save 128 different weld force profiles. Schedules 1 through 127 can be protected. Schedule 0 is used as a scratchpad for schedule development.

Object Detection

Detects the presence of objects located directly in the electrode path between the up-stop position and the search position and will automatically bring the electrode back to the up-stop position.

Run/Dress Mode

Provides adjustable electrode force to easily clean electrodes and then automatically re-calibrates the absolute position of the closed electrode tips.

Physical Characteristics

Dimensions H x W x D Inches (cm)

8.5 x 10.5 x 15.1 (21.6 x 26.7 x 38.4)

Weight - Lbs. (Kg)

45 (20.4)

Electronic Control

Control Signal Input

Provides control for the following remote control signals:
Emergency Stop, Weld Inhibit, and Remote Schedule Selection. Use dry relay contacts, optocouplers, or 5 VDC logic levels.

Foot Switch

Provides process initiation using a 2-Level Foot Switch. For automated installations, use dry relays contacts, optocouplers, or 5 VDC logic levels.

Output Signals

Control Signal Output

5 VDC logic, 35 ma (Max) sink or source. Designed for selecting weld schedules on Unitek Reco power supplies.

Solid State Relays

2 user programmable Solid State Relays: AC - 24/115 VAC @ 15VA; DC-24 VDC @ 15VA.

Weld Fire Switch

Solid state relay output for initiating the power supply weld current.

RS485/RS232 Data

Transmit weld displacement data to a user provided serial data logging device.

Weld Head - Model 301 and Model 302

Stroke (Maximum) Inches (mm)

.999 (25.4)

Force (Maximum) Lbs. (Kg)

50 (22.7)

Force (Weld) Lbs. (Kg)

2 to 20 (0.9 to 9.1)

Force Rating (continuous) Lbs. (Kg)

7.1 (3.2)

Force Linearity

±5% of setting or ±0.3 lb (136 gm)

Force Repeatability

±0.1 lb (45 gm)

Force Response Time

Assuming no shaft movement, the rise time going from 0 lbs force to a step input force of 50 lbs (22.7 Kg) is 1 msec maximum.

Slew Rate (Maximum)

30 in/sec (76.2 cm/sec.)

Operating Temperature (Maximum)

93° C

Physical Characteristics

Dimensions L x W x D Inches (cm)

14 x 2 x 4 (35.6 x 5.1 x 10.2)

Weight: Lbs (Kg)

13 (5.9)

Model

Description

301 H/xxxV

Includes Model 350 electronic head control and Model 301H in-line weld head. Specify line voltage of 100V, 115V, 208V, or 230V when ordering.

302H/xxxV

Includes Model 350 electronic head control and Model 302H offset weld head. Specify line voltage of 100V, 115V, 208V, or 230V when ordering.

Required Accessories

MK301

Bench mounting kit for 301H system, includes stand, lower quick-change holder, head adapter plate, and one set of 2/0 AWG weld cables. Accepts 1/8 inch, 1/4 inch, 6mm, and 3mm electrodes.

MK302

Bench mounting kit for 302H system, includes stand, offset bottom electrode holder, head adapter plate, and one set of 2/0 AWG weld cables. Accepts .125 inch diameter electrodes.

FS2L

Two level footswitch used to initiate welding process.