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CHAPTER 5: OPERATING YOUR POWER SUPPLY
Selecting the Welding Transformer (217 Power Supply Only)
If just one welding transformer is connected to the Power Supply, you need only to select its
model number with the Mode Selection display screen. If several welding transformers are
connected to the Power Supply through a welding transformer selector, you will also need to
assign a transformer channel scan count and scan interval time with the Welding Transformer
Channel Programming display screen.
To select the welding transformer that is connected to the Power Supply:
1.
Press the MODE key twice to access
the Mode Selection extension display
screen.
2.
With the CURSOR keys, move the
cursor to the transformer model
number field (IT-510A is shown
here).
3.
With the DATA key, scroll through the transformer model numbers until the model
number of the connected welding transformer is displayed. Select IT-500A for the
Model IT-500A Transformer. Select IT-510A for all other transformers.
To assign multiple transformers to Power Supply channels and assign scanning intervals:
1.
Press the SCAN key to access the
Welding Transformer Channel
Programming display screen.
2.
With the CURSOR keys, move the
cursor to SCAN COUNT field.
3.
With the DATA keys, select the
channels to which the connected welding transformers are assigned at the welding
transformer selector. For example, if Welding Transformers 1 and 2 are assigned to
Channels 1 and 2, enter 2 at the SCAN COUNT field. Note: If you are using a single
weld head and transformer, you can select SCAN COUNT = 1 and use the interval as
squeeze time.
4.
With the CURSOR keys, move the cursor to the INTERVAL TIME field.
5.
With the DATA keys, enter a suitable time interval for channels 1 and 2. The interval
defines the period between the firing of each weld transformer. Refer to the welding
transformer timing diagram in Appendix B.
IP-215A/IP-217A FINE SPOT WELDING POWER SUPPLIES
5-8
993-603 REV A: October, 1995
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