Keypad Controller - System Control Unit

Keypad Controller System Control Unit
(SCU460 & SCU470)
Operator’s Manual
90-2440 REV E
Scientific Systems, Inc. 349 N. Science Park Road State College, PA 16803
www.ssihplc.com Phone: 800-441-4752 Fax: 814-238-7532 Email: sales@ssihplc.com
SAFETY SYMBOLS
EARTH GROUND
CAUTION - REFER TO MANUAL
CAUTION HIGH VOLTAGE
Scientific Systems, Inc.
349 North Science Park Road, State College PA 16803
Phone: 800-441-4752 / 814-234-7311 Fax: 814-238-7532 Email: Sales@ssihplc.com
www.ssihplc.com www.ssipumps.com
TABLE OF CONTENTS
1 INTRODUCTION .................................................................................................... 1-1 1.1 Description ................................................................................................................. 1-1 1.2 Specification ............................................................................................................... 1-1 2 INSTALLATION ..................................................................................................... 2-2 2.1 UNPACKING AND INSPECTION................................................................................ 2-2 2.2 FLUID CONNECTION ................................................................................................. 2-2 2.3 ELECTRICAL CONNECTION ..................................................................................... 2-2 2.4 SETTING UP THE SYSTEM CONTROL UNIT ........................................................... 2-4 2.4.1 Model SCU 460 P/N WID2K2021101 (.001mL/min resolution) .............................. 2-5 2.4.2 Model SCU470 P/N WID2K1012601 (.01mL/min resolution) ................................. 2-6 2.5 PUMP FLOW CALIBRATION ..................................................................................... 2-7 3 OPERATION .......................................................................................................... 3-8 3.1 STATUS DISPLAY ...................................................................................................... 3-8 3.2 KEYPAD FUNCTIONS ................................................................................................ 3-8 3.3 PRIMING ...................................................................................................................... 3-9 3.4 PENDING REQUEST COM1234 ............................................................................... 3-10 3.5 GRADIENT PROGRAMMING ................................................................................... 3-11 3.5.1 Gradient Program Parameters ............................................................................. 3-11 3.5.2 Editing the Gradient Method................................................................................. 3-15 3.5.3 Running the Gradient Program ............................................................................ 3-19 3.5.4 Gradient Status .................................................................................................... 3-20 3.5.5 Stopping the Run.................................................................................................. 3-21 4 WARRANTY STATEMENT .................................................................................. 4-22 i
1 INTRODUCTION
This operator's manual contains information needed to install, operate, and program the
Keypad Controller (SCU460 & SCU470).
1.1 Description
The System Control Unit (SCU) provides high-pressure gradient control for SSI
HPLC Pumps. Two models are available. The SCU460 P/N WID2K2021101 is for
controlling Model 1500 and Q-Grad Pumps, where you can set the flow up to
0.001mL/min resolution. The SCU470 P/N WID2K1012601 is for controlling SSI
Series I, II, III, Prep 24 and Prep 100 HPLC Pumps, where only up to 0.01mL/min
flow rate resolution can be programmed. The SCU470 P/N WID2K1012601 can also
be used for Series 1500 and Q-Grad HPLC pumps if you only need to program the
flow up to 0.01mL/min resolution. Up to 4 pumps can be controlled via the remote
input ports located on the back panel of the pump.
The System Control Unit stores 10 methods up to 100 lines each, and allows the user
to link methods. It is capable of external start by TTL or contact closure input signal
from an injector, autosampler, or other external LC device. Additionally, the controller
allows the user to set pressure limits for the pump that will shut down all pumps when
a pressure fault is detected. Priming of the pumps can also be done from the keypad.
The controller comes with a multi-output cable, a 12V universal power adaptor, an
AUX (start) adaptor, a program disk, and an operating manual. The multi-output
cable splits into 6 separate lines with 4 pump cables, an auxiliary external start cable
and a PC cable. The PC cable links the controller to the serial port of a PC, enabling
modifications of the SCU firmware. The controller program, provided on a CD, allows
the user to make minor modifications to the firmware such as changing the number of
methods that can be stored, calibrating the pump flow, and changing the maximum
flow rate capability. The latter feature is useful for controlling various SSI pumps.
1.2 Specification
Two System Control Unit models are available. The SCU460 (P/N WID2K2021101)
is for controlling Series 1500 and Q-Grad HPLC Pumps, where you can set the flow
up to 0.001 mL/min resolution. The SCU470 (P/N WID2K1012601) is for controlling
Series I, II, III, Prep 24 and Prep 100 HPLC Pumps, where only up to 0.01 mL/min
flow resolution can be programmed. The SCU470 (P/N WID2K1012601) can also be
used for Series 1500 and Q-Grad HPLC pumps if you only need to program the flow
up to 0.01 mL/min resolution.
SSI System Controller P/N............................ SSI Pumps Model No.
SCU460 - WID2K2021101 ............................ Series 1500 & Q-Grad
(up to 0.001 mL/min flow resolution)
SCU470 - WID2K1012601 ............................ Series I, II, III, Prep 24 & 100
(up to 0.01 mL/min flow resolution)
1-1
2 INSTALLATION
2.1 UNPACKING AND INSPECTION
Prior to opening the shipping container, inspect it for damage or evidence of
mishandling. If it has been damaged or mishandled, notify the carrier before opening
the container. Once the container is opened, inspect the contents for damage. Any
damage should be reported to the carrier immediately. Save the shipping container.
Check the contents against the packing list.
2.2 FLUID CONNECTION
1. Connect solvent lines from appropriate reservoirs to the individual pump heads
using the 1/8-inch TFE tubing and fittings provided with the pump.
2. Connect the pump outlet line to the injector or autosampler.
2.3 ELECTRICAL CONNECTION
1. Connect the Multi-output I/O cable (Figure 1) to the 25 pin female connector
located on the back panel of the SCU (System Control Unit) (Figure 2).
Tighten the retaining screws on the I/O cable to the 25-pin connector until
“finger tight”. All signals are provided through the multi-output cable when
connected between the SCU and pump, regardless of model.
Figure 1.
Multi-Output I/O cable.
2-2
2. Connect the RS-232 (with RJ-11 connector) pump cables from the SCU to the
appropriate remote input port on the back panel of each pump. These RJ-11
connectors will make a “snap” sound as they are secured.Ensure that cable A
is connected to pump A, cable B to pump B, etc. For the Q-Grad pump, 4
ports labeled Pump A Remote Input, Pump B Remote Input, Pump C Remote
Input, and Pump D Remote Input are available on the back panel. For other
pumps, there is only one remote input port for each pump and you must
assign which pump is Pump A, Pump B and etc. Pressure sensing in the SCU
only occurs at pump A remote input port via this RS-232 communication. In
order to monitor pressure, you must connect one of the pumps with a pressure
transducer to port A.
3. Connect the PC cable to the serial port of a computer. This cable, along with
the CD provided with the SCU, allows changes to be made to the System
Control Unit (see Section 2.3.1).
Figure 2.
25-pin female connector (located on back panel of SCU)
4. After all previous connections have been made, apply power to the SCU by
connecting the 12V DC universal power adaptor to an electrical outlet on one
end and to the power input connector (Figure 3) the other end. The coaxial
power input connector should be used only with the supplied adaptor. The
center pin is positive with respect to the outer connection. The SCU display
will show the status as IDLE.
Figure 3. 12V power input connector
(located on the top right side)
2-3
5. The AUX cable is for synchronization of the gradient control program with
injection (optional). This cable should be connected to an autosampler or
manual injector. The AUX I/O lead is terminated with an RJ-11 connector, and
is to be used exclusively with the “RJ11-to-wires” adaptor (Figure 4) supplied
with the SCU unit. Pins 1 and 3 are used with a normally open contact closure
or injector switch. Pin 3 can also be driven from an “Open Collector” type drive
circuit. The SCU is triggered to start a gradient when pin 3 is connected to pin
If one of the leads of the driving device (auto sampler or injector) is at ground
potential, lead 1 should be connected to that lead. The AUX connector has
additional signals present, reserved for future applications. At this time, wires
should only be connected to pins 1 and 3 to preclude the possibility of an
inadvertent short.
Figure 4. AUX (START) Adapter
2.4 SETTING UP THE SYSTEM CONTROL UNIT
Some default parameters on the SCU should be changed upon receiving the
controller using the procedure given below. This can be done using the PC cable, to
be connected to a serial port of a computer, and the CD provided with the System
Controller, which contains an executable file that allows the user to rapidly load such
a modification from a PC. Additional features that may be user-modified using this
program include the number of methods that can be stored and flow rate settings for
each pump head. With the SCU460, the upper flow rate is locked at 5.000 mL/min.
1. Turn the power to the SCU off.
2. Turn off the PC and hook up the serial port PC Cable from the SCU to a COM
port on the PC (if you had not done so already).
3. Restart the computer and load the executable file from the CD provided with
the SCU.
4. Turn the power to the SCU unit on.
5. Open the installed executable file by double-clicking the icon.
6. Select the PC COM port to which the SCU is connected – COM1, COM2, etc.
2-4
Both SCU file versions (SCU460 and SCU470) are included on the CD. Be sure to
select the appropriate version for your application.
2.4.1 Model SCU 460 P/N WID2K2021101 (.001mL/min resolution)
The SCU460 P/N WID2K2021101 is designed for use with the SSI Q-Grad &
Series 1500 HPLC Pumps. Up to 0.001 mL/min flow resolution can be set
using the SCU. The maximum flow rate setting that can be used with this
SCU is 5 mL/min. Even though the actual maximum flow rate limit for the
Series 1500 pump is 12 mL/min., only 5 mL/min can be used with this
controller. If higher flow rate is required, please use the SCU470 P/N
WID2K1012601.
You can set the pump head type and pressure compensation using the
following procedure:
1. Click the “460 Pump setup” tab.
2. Choose Head Type 5 for stainless steel pump head and 6 for metal-free
(PEEK) pump head.
3. The default setting for the Pressure compensation is 10, which
represent 1000 psi. For best performance set the pressure
compensation to match your actual system pressure. The value shown
represents a multiplication of 100psi, i.e. 10=1000 psi. (Example – If
the system pressure is 1200 psi, set the Pressure Compensation at 12).
4. Click on “SET SCU” to load new values into the unit.
5. Once the modification is complete, turn off the power to the SCU, shut
down the PC, and disconnect the serial cable.
2-5
2.4.2 Model SCU470 P/N WID2K1012601 (.01mL/min resolution)
The SCU470 P/N WID2K1012601 is designed for use with all SSI pumps. Up
to 0.01 mL/min flow resolution can be set using this SCU. The default
maximum flow rate setting on the SCU is 5 mL/min. This should be changed
to the desired settings based on your pump model upon receiving the
controller. Also, the default maximum pressure setting on this SCU is 6000
psi. This should also be changed to match your pump model.
You can set the maximum flow rate and pressure using the following
procedure:
1. Click the “470 Pump setup” tab.
2. Select the maximum flow rate and pressure for each pump using the
information given in the following table:
SSI Pump Model
Series I, II, III
Series I, II, III
Series 1500
Prep 24
Prep 100
Maximum Flow Rate
10mL/min
40mL/min (macro)
12mL/min
24mL/min
100mL/min
Maximum Pressure (psi)
5000(PEEK), 6000(SS)
1500(PEEK & SS)
5000(PEEK), 6000(SS)
5000(PEEK), 6000 (SS)
4000(PEEK & SS)
Q-Grad
5mL/min
5000(PEEK), 6000(SS)
Flash 300
300 mL/min
300(SS)
3. Click on “SETSC” to load the new values into the unit.
4. Once the modification is complete, turn off the power to the SCU, shut
down the PC, and disconnect the serial cable.
2-6
2.5 PUMP FLOW CALIBRATION
Occasionally, you may need to correct the pump flow to account for varying solvent
compressibility. This can be done using the PC and file provided with the CD as
described above (section 2.4). You will need to measure the correct flow rate of your
system at 1.0 mL/min before beginning this step. This procedure is the same
regardless of which model SCU is being used.
1. Click on the “Flow Calibration” tab.
2. Check the first “Flow Calibration” box.
3. Click the “Prepare” button.
4. Check the second “Flow Calibration” box for entry of the measured flow
values.
5. Enter the true measured flow rate for each pump (A, B, C, and D) (when the
individual pumps were run at a setting of 1.0 mL/min). (If a pump is not to be
recalibrated, then leave the setting at the default value of 1.0 mL/min).
6. Click on the “SET SCU” button to load the new values into the unit.
Double-clicking towards the right side of the tool bar reveals hidden functions
available on the SCU. These allow the user to modify other parameters such as the
number of methods that can be stored and for any needed future changes to the
SCU firmware.
Once the modification is complete, turn off the power to the SCU, shut down the PC,
and disconnect the serial PC cable.
2-7
3 OPERATION
3.1 STATUS DISPLAY
IDLE .................. Pump and controller are in idle mode
INIT ................... Initial conditions of current gradient method
WAIT ................. Waiting for start signal from injector/autosampler to begin the run
RUN .................. Indicates run is in progress
DLY ................... Indicates that the delay phase is in progress
Initial display on power up
3.2 KEYPAD FUNCTIONS
CL ..................... Panic aborts the current sequence/run
O ....................... Abort current sequence/run
MODE ............... Switches between status screen and gradient program options
ARROWS .......... Scrolls through functions
ENTER .............. Enters program changes into the system
3-8
3.3 PRIMING
When the SCU is turned on, the IDLE status appears on the screen. To prime the
pumps, scroll with the down arrow until the “PRIME” commands for the individual
pumps can be accessed. Press the number corresponding to the specific pump, as
indicated on the display, and pump prime will start at the maximum flow rate. Priming
may be stopped at any time by pressing “CL” or scrolling out of this screen.
CAUTION: Prime will start the pumps at the maximum flow rate (between 5
mL/min-100mL/min depending on your maximum flow rate setting/pump model).
Assure that the prime port is open.
To Prime at a specific flow rate other than the pump PRIME default:
1. Press Mode to exit Status screen; select a method number.
2. Scroll down and enter desired flow rate (for priming).
3. Scroll down further and ‘Erase All’ to clear gradient table.
4. Set composition of the pump to be primed at 100%; toggle back to Status by
pressing Mode.
5. Press ENTER to start running the selected pump.
6. Repeat for other pumps after pressing Mode; follow procedure from Step 3.
3-9
3.4 PENDING REQUEST COM1234
This screen indicates which pump connections are not communicating with the
keypad controller. To access this screen, scroll down from the main status display
screen twice using the down arrow.
If any number is displayed, it indicates that this specific pump is not communicating
with the controller (Pump A: 1, Pump B: 2, etc.). After the pump and controller are
powered up, and the four pump cables are connected, the display should read
“Pending Requests COM”. If the system is only binary and Pump A and B are
connected, the display should read “Pending Requests COM 34”.
KEY:
Blue Key – This key should be pressed in order to
access the current screen.
Green Key – This key should be pressed in order
to ender the value into the controller.
Blue Text – This is the value that will be changed.
3-10
3.5 GRADIENT PROGRAMMING
3.5.1 Gradient Program Parameters
Press Mode key to enter gradient programming.
Method: Enter the method # to be programmed.
Flow Rate: Enter value in 0.1 mL increments.
3-11
Delay Time: (Time for return to initial conditions at end of run) — must be set
to a value of at least 0.1 min.
Equilibration (Eql) Time: Must be set to a value of at least 0.1 min.
3-12
Low Pressure Limit: Enter a value between 0 and 5000.
High Pressure Limit: Enter a value between 0 and 5000.
(High Pressure Limit must exceed Low Pressure Limit)
3-13
Number of Cycles: Number of times the same method is to be repeated.
Link to Method: Links to specified method after number of cycles is
completed.
3-14
Gradient Step: Enter values for Time, %B, %C, %D (each value to one
decimal place), using the procedure below in Section 3.5.2. %A automatically
resets.
3.5.2 Editing the Gradient Method
To build a method table and access other user-defined parameters, press
MODE. This will enable you to toggle between the Status/priming screen and
PARAMETER/method entry screen.
Enter values as desired. To enter the lines of a gradient program, first select
gradient method number. The default settings are method number values from
1 to 10.
Gradient information may be stored on a maximum of 1000 lines, which is
divided by the number of methods selected by the user. Hence, the SCU is
capable of storing 100 methods of 10 lines each or 10 methods of 100 lines
each and all combinations in between. The desired method number
modification may be entered into the SCU unit by using the program supplied
on the CD and connecting the PC cable to the serial port of the PC (see
section 2.4).
3-15
When editing the selected method, the user has the choice to clear the entire
gradient method. Enter the values for %B, %C, and %D as needed at time 0.0
min.
To add another line into the gradient method, enter the time “xx.x” min when
the ‘end time-%A’ display appears, and press ENTER. This will lead to
prompts for values of %B, %C, and %D. Repeat for as many lines of gradient
programming as required.
3-16
3-17
The gradient method may be linked to another method such as a cleanup or
shutdown method. Edit the method that is specified as the link. Once the
number of cycles for the original method is completed, the linked method will
load and run. If no method is to be linked, then enter the same number as the
method currently being edited.
Press the MODE key to exit the gradient program edit mode.
3-18
3.5.3 Running the Gradient Program
Press ENTER to start the run or sequence.
3-19
3.5.4 Gradient Status
Before the start of the gradient program, the status is IDLE. This status
screen displays current time and system pressure.
The status moves to INIT (initial conditions) when the ENTER key is pressed
and the gradient program is started. Pressing the ENTER key again changes
the status to WAIT until an external start (from an injector/autosampler) is
provided or the ENTER key is pressed again.
At the end of the RUN phase the display moves to DLY, indicating the delay
time period specified for return to initial conditions.
At the completion of the DLY phase the status moves to INIT (at the end of the
last cycle) or to WAIT (for the next injection).
The actual composition of the 4 solvents is continuously monitored and
displayed during the run. Scroll down one screen with the RUN phase in
progress to access this display.
3-20
The number of cycles specifies the number of times that the gradient program
will be repeated in a sequence before the pump is returned to initial conditions.
After the first run of the sequence, the controller will loop back to the start of
the program and remain in WAIT mode until the external start is provided with
the next injection.
3.5.5 Stopping the Run
At any time during the run, the gradient method may be stopped using the
STOP, ABORT, or PANIC ABORT functions that may be accessed by scrolling
with the down arrow.
STOP ............................ stops current run, returns to WAIT for the next
injection after completing the delay phase
ABORT ......................... stops current run and sequence, returns to INIT after
the delay phase
PANIC ABORT .................. immediately stops the run and the pumps,
returns to IDLE
3-21
4 Warranty Statement
Scientific Systems, Inc. (SSI) warrants that instruments or equipment manufactured by the company for a
period thirty-six (36) months from date of shipment to the original purchaser (or to the drop ship location as
indicated on the Purchase Order from the original purchaser), against defects in materials and workmanship under
normal installation, use and maintenance. Products sold by SSI but not manufactured by SSI carry the Original
Manufacturer’s Warranty, beginning as of the date of shipment to SSI’s original purchaser. Expendable items and
physical damage caused by improper handling or damage caused by spillage or exposure to any corrosive
environment are excluded from this warranty. The warranty shall be void for Polyetheretherketone (PEEK)
components exposed to concentrated Nitric or Sulfuric acids which attack PEEK, or methylene chloride, DMSO
or THF which adversely affect UHMWPE seals and PEEK tubing. Any defects covered by this warranty shall be
corrected by replacing or repairing, at SSI’s option, parts determined by SSI to be defective.
Spare or replacement parts and accessories shall be warranted for a period of twelve (12) months from date
of shipment to the original purchaser against defects in materials and workmanship under normal installation, use
and maintenance. Defective Product will be accepted for return to SSI only if the request for return is made
within thirty (30) days from the time of discovery of the alleged defect, and prior to return, the original purchaser
obtains a Return Goods Authorization (RGA) number from SSI, and provides SSI with the serial number of each
instrument to be returned.
The warranty shall not apply to any Product that has been repaired or altered except by SSI or those
specifically authorized by SSI, to the extent that such repair or alteration caused the failure, or to Product that has
been subjected to misuse, negligence, accident, excessive wear, or other causes not arising out of a defect in
material or workmanship.
The warranty shall not apply to wear items, specifically:
Check Valves
Pulse-Damper Diaphragms
Pistons
Inlet Lines
Piston and Wash Seals
Filter Elements
The following is the exclusive procedure by which to make claims under this warranty. Customer shall
obtain SSI’s oral or written authorization to return the Product and receive a Return Goods Authorization (RGA)
number. The Product must be returned with the RGA number plainly visible on the outside of the shipping
container to SSI. It must be securely packed in a rigid container with ample cushioning material, preferably the
original packaging. All claimed defects must be specified in writing, including the RGA number, with the written
claim accompanying the Product. Freight costs for the return of reported defective Product from the original
purchaser to SSI is the responsibility of the original purchaser. Freight costs for the return of reported defective
spare parts is the responsibility of SSI. SSI shall specify the freight carrier for returns. SSI shall bear the expense
of return shipment to original purchaser (or to the drop ship location as indicated on the Purchase Order from the
original purchaser).
If it appears to SSI that any Product has been subjected to misuse, negligence, accident or excessive wear, or
is beyond the warranty period, the original purchaser and/or customer shall be notified promptly. SSI shall
communicate its finding and provide an estimate to repair such Product at the then current rates for parts and
service. SSI shall either repair the Product per customer’s authorization or shall return such Product not repaired
to customer at customer’s expense. SSI may invoice customer for the freight costs of any Product shipped back to
the original purchaser and/or customer by SSI which is not covered under the warranty.
Limitations of Warranty. THE FOREGOING WARRANTIES AND LIMITATIONS ARE CUSTOMER’S
EXCLUSIVE REMEDIES AND ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.
4-22
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