WTC MedWeld WT4000 AC Resistance Weld Control
FOR SALE at Weld Systems Integrators, Inc.
WTC MedWeld WT4000 AC
The WTC MedWeld WT4000 AC resistance weld control is unsurpassed in its flexibility and simplicity for a powerful control system. Quality welds with repeatable performance is made possible with the control tools made available by the MedWeld 4000 control.
- Current regulation and voltage control mode (within one weld)
- Multi-language programming (English, French, Spanish, Portuguese)
- Total I / O programmability
- Local safety I / O embedded
- Free format programming for various applications
- Network ready using WebVIEW for weld data collection
- Various I / O connectivity (DIO, Device Net, ProfiBus)
- Weld tool efficiency monitoring (C-Factor)
- Weld Transformer protection (Delayed firing prevents saturation)
- Dynamic squeeze functions
- Wait for line voltage – asynchronous load scheduling
- Laptop or DEP interface for programming and data acquisition
- Analog interface port for controlling welding force
- Large repertoire of inputs and outputs
- 220 – 600 VAC 50 / 60hz mains
- Modular design for ease of maintenance
MedWeld WT4000 AC Welding Control - Portable Weld Station
- 400 Amp, 2 Pole Circuit Breaker with Magnetic and External Shunt Trip
- Single Operator – Two Welding Guns
- Operator Panel with Tip Dress and Cap Change Control Buttons
- 265KVA, 200KVA, 160KVA Weld Transformer – 220-600VAC 50/60Hz Mains (choose one of 9 Selections)
- Integrated MedWeld 4000 Processor Module
- Dimensions (116H x 100W x 86D (mm)) – 250Kg
- Network – MedLAN to WebVIEW
- Tip Dress Management Interface
- Pneumatic Panel – with Proportional Valve Control
- Six discrete Air Valves
- Water flow valve with electronic flow monitor (optional)
Programming Interfaces
These devices are used to interface the user to the MedWeld 4000 weld control for programming parameters and reviewing welding data.
MedWeld WT4000 AC Configurable Designs - Modules 821, 822 and 823
Programmable Discrete I/O Module “821” – 16 Inputs / 10 Outputs with each point configurable by programming
Welding Control Module “822” – Completely programmable for various resistance welding tasks
Serial Interface Module “823” – Allows quick I/O interface for Device Net or ProfiBUS
 |
 |
 |
Module “821” |
Module “822” |
Module “823” |
Analog Ports Available
- Complimentary Analog I/O
- Output: 4 – 20 mA (+I Loop, -I Loop)
- Input: 0 – 10V (+Vout, -Vout)
There are other variations of circuit boards to produce the MedWeld 4000 control including compact 24V DIO and new enhanced processor modules.
Network Ready
All WTC welding controls are network ready. The MedWeld 4000 control uses a simple RS485 MedLAN network that daisy chains up to 30 controls on one channel. The information from these controls can be brought to the plant’s Ethernet network by means of a WebVIEW Gateway. The WebVIEW Gateway is available in Single, Dual, and Quad Channel Configurations.
MedWeld 4000 Connectivity
Power Source |
Voltage: |
Single Phase AC 220V – 600V (± 10%) |
Line Power Frequency: |
50/60Hz (Automatic Selection) |
Device Type: |
SCR |
Power Consumption: |
70VA (Idling Condition) |
Monitor and Control Functions |
Weld Processor: |
MedWeld 4000 Integrated |
I / O Protocol: |
Device Net, DIO, or PROFIBUS |
Number of Weld Schedules: |
Up to 63 – varies by user application |
Number of Weld Steppers: |
Up to 32 – varies by user application |
Processor Storage Type: |
RAM ( Battery Required) |
Weld Processor Languages: |
English with some options for one alternate French, Spanish, Portuguese |
Monitoring and Control Functions |
Firing Modes: |
Primary Constant Current
Automatic Voltage Control |
Primary Current Range: |
20A to Rated Current Level |
Primary Current Accuracy: |
± 1% Setting, ± .5% Repeatability |
Machine Monitoring Functions: |
Analog Input Window Functions
Programmable Input Wait / Extend Functions
Dynamic Weld Gun Squeezing Functions
Wait for Line Voltage Functions
C-Factor Monitoring and Limit Functions |
Analog Interface Ports:
- Local I/O Port
- DIO, Device-Net or ProfiBus
- Serial RS485 Port
- Local Programming Port
Optional Devices:
- Data Entry Panels (DEP100,300)
- Weld Interface Laptop Software
- WebVIEW
- Weld / RAFT Gateway Network Software
MedWeld WT4000 AC Welding Applications:
- Systems Integrator Kit Configurations
- Portable Gun Station Controls
- Seam Welding
- Robotic Welding
- Projection Welding
MedWeld 2200 Option
For stand-alone welding equipment, the MedWeld 2200 resistance weld control eliminates the need for a separate, costly weld monitor. The MedWeld 2200 provides both ease of use and ensures quality, repeatable welds. Its flexibility is unsurpassed in its category.
Single glance view of all weld functions while monitoring current, voltage, and power factor feedback from the illuminated 2 line, 40 character display. The MedWeld 2200 uses the same base control boards as the MedWeld WT4000 AC.

Weld Systems Integrators is a distributor of WTC resistance welding controls, keeping an inventory of IN-STOCK at our Warrensville Heights, Ohio location for quick shipment and delivery.
Contact Weld Systems Integrators
RETURN TO WSI RESISTANCE WELDING CONTROLS© Welding Technology Corp.