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TUTORIALS
Controlling an Air over Oil System
197 | P a g e
Copyright © 2021 BF ENTRON and/or its affiliates. All rights reserved
Product Model: iPAK2v2
Firmware Version: V2.10
May 22 | Doc No 700253-2
10 TUTORIALS
10.1
Controlling an Air over Oil System
An Air over Oil System (also referred to as OHMA) uses compressed air to open and close the electrodes plus a hydraulic
intensifier to apply the weld force. This type of system can easily be controlled by the iPAK2v2 by making use of the
programmable AUX valves feature.
Figure 75 shows a weld timing diagram where the Intensify signal is output during the Squeeze, Main Heat and Hold
events. Table 74 defines step by step instructions to program a weld program (schedule) using NetFlash™ with the
Intensify signal output on AV2.
Figure 75: Weld Sequence Timing Diagram for Air Over Oil System
Step Instruction NetFlash Tab Description
1
Connect WAV output to Advance valve on the
iPAK2v2 Weld Timer
2
Connect AV2 output to Intensify valve on the
iPAK2v2 Weld Timer
3
On the Netflash
Program
Tab, select the
desired Weld Program and then check all of
the AV2 checkboxes in the column.
Note: The checkboxes must be checked for all
events used by the weld program
(
Squeeze, Upslope, Main heat,
Downslope, Hold
)
4
Program the
Presqueeze
time with a value
sufficient to allow the electrode advance to
the work