Description
2-7
Part 1602966−05
E 2015 Nordson Corporation
Lance Lift Operation
See Figure 2-4.
Static State
S Lance lock solenoid valve non-energized, air line to lock vented, cylinder
rod locked by spring force.
S Lance down and lance up solenoid valves non-energized, air lines to up
and down flow control valves pressurized, lance up and lance down
regulators supplying balanced pressure to both sides of the lift cylinder
piston.
Dynamic State UP
S Lance lock solenoid valve energized, lock air line pressurized, cylinder
rod unlocked.
S Lance up solenoid valve energized, venting line to lance down regulator
and top of piston. Pressure to lance up regulator and bottom of piston
forces piston up.
Dynamic State DOWN
S Lance lock solenoid valve energized, lock air line pressurized, cylinder
rod unlocked.
S Lance down solenoid valve energized, venting line to lance up regulator
and bottom of piston. Pressure to lance down regulator and top of
piston forces piston down.
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