Valve movements
47
C-Series Product Manual
Descriptions of commands for each type of valve are followed by illustra-
tions which show positions resulting from each command.
Note:
The illustrations on the following pages show valve positions as viewed
from the front of the pump.
Movements for non-distribution valves (3-port and 4-port)
The following commands apply to the 3-port 120° Y valve and the 4-port
90° valve. Refer also to Figures 5-10 and 5-11.
Move valve to input position (I)
The [I] command moves the valve to the input position. The input position
will be either to the left or to the right depending on whether the [Z] or [Y]
initialization command was sent first.
For example:
•
After Z initialization: sets input to left port.
•
After Y initialization: sets input to right port.
Move valve to output position (O)
The [O] command moves the valve to the output position. The output posi-
tion can be either to the right or to the left depending on the [Z] or [Y] ini-
tialization commands.
For example:
•
After Z initialization: sets output to right port.
•
After Y initialization: sets output to left port.
Move valve to bypass position (3-port 120° Y valve only) (B)
The [B] command connects the input and output positions, bypassing the
syringe. Please see note below.
Connect flush port to inlet port (4-port 90° valve only) (B)
The [B] command sets the flush port to inlet on left or right, bypassing the
syringe. See note below.
•
After Z initialization: sets the flush port to inlet on left.
•
After Y initialization: sets the flush port to inlet on right.
Connect flush port to outlet port (4-port 90°valve only) (E)
The [E] command connects the flush port to an outlet port on the left or
right, bypassing the syringe.
•
After Z initialization: connects the flush port to outlet on right.
•
After Y initialization: connects the flush port to outlet on left.
Note:
When the valve is in the [B] or [E] position, the syringe plunger cannot be
moved. Sending a plunger move command causes an error 11 (plunger move not
allowed).
Summary of Contents for C24000
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