Supplied Valves; Accessory Control Digital Outputs - Teledyne SyriXus 65x Installation And Operation Manual

SyriXus Series Pumps Installation and Operation Guide
Section 5 Continuous Flow Introduction, Installation, and Operation
5.4 User

Supplied Valves

Digital Output
EAR99 Technology Subject to Restrictions Contained on the Cover Page
5-12
Users may also choose to supply their own valves. The following infor-
mation is necessary to choose the appropriate valves to work with
Teledyne ISCO Continuous Flow software.
• Check valves
Do not use spring-loaded check valves if refilling at atmospheric
pressure; the pump seals are not designed to draw against a
vacuum. The balls in Teledyne ISCO check valves are closed by
gravity.
• Powered valves
These are electrically triggered from the pump controller and
could be air or electrically actuated. Digital outputs 1-4 provide
signals for control of four two-way valves. One wire for each
valve is connected to its specific connector on the rear of the
controller. A second wire for each valve connects to ground. The
signal provided is an open collector which functions as a switch
open for closure of the fluid path. A switch closure (low) signals
opening of the fluid path.
Table 5-6 "Accessory Control Digital Outputs" shows the relationship
between the digital output, pump valve location, and the fluid path
status for the ACCESS CTRL connections. Refer to the accessory
control connections on the rear panel of the pump controller.
Table 5-6 Accessory Control Digital Outputs
Pump Valve Location
1
2
3
4
5
6
7
8
Alternate connections can be made to drive low power 12-15 V relays
or electric valves. Assume two wires per relay or valve. The first wire
is connected to the appropriate digital output on the back of the pump
controller. The second wire can be connected to the +15 V connector, to
supply a maximum of 200mA for switching of relays or valves.
Observe correct polarity if the valve or relay is polarized.
If the valves selected operate at higher than 12-15V or use more
than 200mA, a 12V relay requiring no more than 200mA MUST be
used and the user must supply the required power to the valve.
Fluid Path Status
A Inlet (open or closed)
A Outlet (open or closed)
B Inlet (open or closed)
B Outlet (open or closed)
C Inlet (open or closed)
C Outlet (open or closed)
D Inlet (open or closed)
D Outlet (open or closed)
NOTE