Solution 2

There is now an affordable resistance welding control that combines all of the unique features of the original Unitrol Solution with additional functions that...

  • Eliminate the need for PLC controls
  • Provide 26 to 46 input/output functions
  • Eliminate complex codes
  • Do not require ladder logic programming
  • Allow you to simply do more complex things

SIMPLE - LOGICAL - POWERFUL

Think of the SOLUTION-2programming as connecting a series of links in a chain. Each link of the chain contains a program.

Each program consists of a complete set of instructions that you enter to operate valves, check inputs, and if desired, do a complete weld sequence (SQUEEZE, WELD, HOLD, etc.) There is space for 70 complete programs in the SOLUTION-2 solid state (no battery) memory.

Notice that since the same program can be used in any number links, it is only necessary to enter the repetitive operations one time.

The SOLUTION-2 then performs the selected programs one link at a time. By selecting various operating modes, this sequence can be continuous, or can be interrupted at various points and continued as desired.

The SOLUTION-2 comes with the ability to store and use up to 15 different chains.

Each chain can have up to 45 links.

Each link can select from 70 programs in the control's electronics memory.

The Easiest Way To Do Complex Welding Sequences

This advanced system, by Unitrol Electronics, allows fast and easy setting of even the most complex welding sequences with the minimum number of English language steps entered from a 17 button keypad. Absolutely no codes are required when programming the SOLUTION-2.

SOLUTION-2 comes complete with 32 digit alpha/numeric display and a security keyboard lock.

The powerful SOLUTION-2 can eliminate the need for a PLC on many complicated sequence welding systems!

Weld and valve sequences are programmed like links in a chain. Each of up to links can do any or all of the following:

  • Operate up to 16 solenoid valves
  • Fire any of up to 15 SCR contactors
  • Check condition of up to 5 pressure/limit/proximity switches
  • Wait for proper Tip Force from up to 16 pressure transducers
  • Monitor Weld Current
  • Weld with all RWMA sequences
  • Dwell between this link and the next
  • Stop after link and wait for switch closure to continue the chain

Benefits For Multiple Weld Head Welding Systems

Standard Features:

  • Any program can be selected by use of a binary code input, or operate in a chain automatically with a single initiation
  • Makes up to 45 welds or sequences in each programmed chain
  • Sequences 4 (expandable to 16) solenoid valves in any order
  • Checks open or closed condition of 5 pressure/limit/proximity switches
  • Can operate up to 15 chains as selected by switch input
  • Allows use of same individual program unlimited times
  • A different weld schedule can be used for every weld from 70 in memory
  • Counts complete finished parts
  • Contains Anti-tiedown/Anti-repeat system for use with double hand switch operation
  • Operates a water saver solenoid for 1 minute after last weld
  • Sends a signal at the end of each complete chain (EHR)
  • Controls Intensifier functions

Optional Features:

  • Monitors and reacts to primary or secondary welding current
  • Prints data and fault indication on each weld
  • Contains up to 16 independent computerized steppers
  • Welds with any of up to 15 SCR contactors in any sequence
  • Monitors up to 16 Differential Pressure Transducers

Benefits For Single Head Pedestal Welders

Standard Features:

  • Allows welding of a complete part in one handling
  • Provides virtually unlimited welding sequences
  • Makes up to 45 welds in a programmed chain
  • Can use same individual program unlimited times for fast programming and editing
  • Provides proper weld schedule for each weld from 70 in memory
  • Controls 4 (expandable to 16) solenoids for clamp, retract, slide, etc
  • Monitors up to 5 limit/pressure/proximity switches
  • Counts complete finished parts
  • Can utilize three double level foot switches to select three completely different chains
  • Contains Anti-tiedown/Anti-repeat system for use with double hand switch operation
  • Operates a water saver solenoid for 1 minute after last weld
  • Controls Intensifier functions

Optional Features:

  • Has a differential pressure transducer to wait for correct tip force prior to the start of each weld
  • Monitors and reacts to secondary welding current
  • Prints data and fault indication on each weld
  • Increases welding heat on a computerized curve for welding of galvanized steel

Specifications

  • 26 I/O (expandable to 38):
    • 7 initiation inputs (discreet or binary), dry contact or PNP
    • 4 (expandable to 16 total) programmable115V valve outputs (24 VDC optional)
    • 5 addressable proximity/pressure/limit switch inputs, dry contact or PNP
    • EHR, End of Hold Relay (sequence completion), dry contact (NO or NC)
    • INIT./REWELD reads binary code or repeats last weld, dry contact or PNP
    • WATER SAVER 115V valve output (remains ON 1 minute after last weld
    • 3 assignable FAULT outputs (MAJOR, MINOR, SPECIAL FAULT), dry contact or PNP
    • ES, Emergency Stop input, dry contact or PNP
    • NO WELD, external dry contact or PNP and also keypad selectable
    • Transformer over temperature input, dry contact or PNP
    • SCR over temperature input, dry contact or PNP
  • Up to 45 LINKS (groups of functions) per chain
  • Up to 15 separate CHAINS (of 45 links each for a total of 675 LINKS)
  • NO CODES TO LEARN, EVER!
  • DOES NOT USE LADDER LOGIC PROGRAMMING or need a PC to program
  • Uses simple 17 button keypad for all programming
  • 70 complete RWMA weld program memory, does not require linking
  • Ability to use the same weld PROGRAM at multiple locations in a chain
  • Can insert time delay and stop sequences at desired places in the chain
  • Full 32 character alpha/numeric readout in PLAIN ENGLISH – no codes
  • Valve outputs 4 (expandable to 16 total) can be independently designated in programs to:
    • Turn on or off at the start of any link
    • Turn on or off at the end of any link
  • Includes anti-tiedown and anti-repeat functions
  • Can be initiated in 5 different ways
    • Single Stage switch closure to select any of 7 chains
    • Two Stage switch closure to select any of 3 chains
    • Binary switch input to directly select any of 70 programs
    • Binary switch input to select any of 15 chains
    • Keypad Select non-chaining mode to select a single weld schedule of the 70 available
  • One prox. input can be used for a light curtain (preprogrammed function)
  • Can control up to 15 SCR contactors in any sequence (Multi-SCR option)
  • Can monitor Weld Current (option)
    • Single primary CT
    • Up to 15 secondary coils
  • Can read up to 16 different Differential Pressure Transducers or Load Cells (option)
  • Keyboard Keylock is standard
  • Digital counter displays individual welds or completed parts
  • chains can be manually or automatically run in 6 different modes:
    • Run the chain one time and stop
    • Run the chains sequentially
    • Run the chain one time. If a proximity switch is closed at the end, stop.
    • Run as above – At the end, go to the next chain
    • Run a chain 2-99 times and stop
    • Run a chain 2-99 times and go to the next chain
Solution 2

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