Type “C” An integrated Fill/Dump valve with a manual regulator, check valve, and LOX valve, and
afour-way valve that selects whether the pressure is set by the automatic system or the manual regulator as shown in Figure 3.4 for cushion and counterbalance adjustment. Unlike the type “B” valve, the manual regulator can be set to any allowable pressure without interfering with automatic pressure adjustment- it does not have to be a minimum pressure. This system is ideal for press counterbalance systems as the manual regulator can be set to balance the heaviest die used on the press. When the OmniLink 5000 control is powered off, the valve automatically reverts to at least the pressure set by the manual regulator. If there is an air leak in the counterbalance system, the manual regulator keeps the system charged to support the weight of the die.
Figure 3.4: Type “C” Valve Configuration
Section 3.3 Counterbalance Control Installation
The automatic counterbalance control system consists of an air control module mounted on the ASM, a control valve (or valves) , and a pressure transducer. The typical manually controlled press counterbalance system looks something like Figure 3.5.
Figure 3.5: Typical Counterbalance System
April 17, 2000 Man ual Versio n 1.0 | 3.4 |
