OmniLink II Press Automation Control Automatic ... - LINK Systems
OmniLink II Press Automation Control Automatic ... - LINK Systems
OmniLink II Press Automation Control Automatic ... - LINK Systems
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elow a minimum value set by the manual regulator (as long as there is shop air<br />
pressure). This prevents cushion drift down when control power is off with its<br />
associated lost die pins below the press bolster and lost time while they are<br />
recovered. This valve also allows the cushions to be adjusted using the manual<br />
regulator path if the automatic system fails, allowing the press to be operated until<br />
the automatic system is restored. When the automatic system is on, the manual<br />
regulator on this valve system must not be set higher than the lowest pressure that<br />
the automatic system is to provide, because the automatic valves will try to dump<br />
while the manual regulator fills if the automatic setpoint is lower than the manual<br />
regulator pressure.<br />
October 16, 2008 Manual Version 1.1<br />
Figure 3-6 Type "B" Valve Configuration<br />
Type “C” An integrated Fill/Dump valve with a manual regulator, check valve, and LOX<br />
valve, and a four-way valve that selects whether the pressure is set by the<br />
automatic system or the manual regulator as shown in Figure 3.7 for cushion and<br />
counterbalance adjustment. Unlike the type “B” valve, the manual regulator can<br />
be set to any allowable pressure without interfering with automatic pressure<br />
adjustment. It does not have to be a minimum pressure. This system is ideal for<br />
press counterbalance systems as the manual regulator can be set to balance the<br />
heaviest die used on the press. When the <strong>OmniLink</strong> <strong>II</strong> <strong>Press</strong> <strong>Automation</strong> <strong>Control</strong><br />
<strong>Automatic</strong> Setup module is powered off, the valve automatically reverts to at least<br />
the pressure set by the manual regulator. If there is an air leak in the<br />
counterbalance system, the manual regulator keeps the system charged to support<br />
the weight of the die.<br />
3-6