ADVANCED FEATURES
Valve Delays
188 |
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
9.10
Valve Delays
A forge operation is simply the application of additional force during the weld process.
HELPFUL TIP
Some materials, such as Aluminium, Titanium, and some exotic alloys, may need a
forging force applied during the weld in order to remove heat induced cracks and form a
more homogeneous nugget.
The timing of the application of additional force is critical. If the additional force is applied too soon, the current may be
insufficient to form a good nugget with the resulting drop in contact resistance. If the additional force is applied too
late, the nugget may have already started to solidify making it difficult to obtain the result needed.
Forge delay provides a precise timing method to trigger an AUX valve assigned to the function.
An on-delay may be applied to any of the AUX valves. The delay is triggered when a valve is programmed to turn on at
the start of any interval. The actual turn-on time is delayed by the time value entered in the appropriate delay
parameter.
•
If a valve is programmed to turn off, then the delay is reset.
•
All delays are reset at the end of the HOLD time.
•
If a valve has been selected to operate as a WAV or MOTOR function, then the delay for that valve is not used.
See section
Programming Valve Delay Parameters using NetFlash
Programming Valve Delay Parameters using WSP3
for programming examples.
Each weld program has a corresponding extension. Each weld program extension contains the following parameters:
Parameter
Units
Range
Description
AV1 Delay
ms
0.9999
Delay on for AV1
AV2 Delay
ms
0.9999
Delay on for AV2
AV3 Delay
ms
0.9999
Delay on for AV3
AV4 Delay
ms
0.9999
Delay on for AV4
AV5 Delay
ms
0.9999
Delay on for AV5
AV6 Delay
ms
0.9999
Delay on for AV6
AV7 Delay
ms
0.9999
Delay on for AV7
AV8 Delay
ms
0.9999
Delay on for AV8
Table 71: Weld Program Forge Valve Delay Time Parameters
