Bimba SPCS User Manual

User Manual

SPCS-2 Servo Pneumatic Proportional Control System

Table of Contents

SPCS INTRODUCTION 3

SYSTEM SETUP  CONNECTION 4

SOFTWARE & FACTORY DEFAULT SETTINGS 8

LOAD & VELOCITY CHARTS 10

TROUBLESHOOT 13

TECHNICAL DATA 14

AUTO COM PORT DETECTION 15

NOTICE & WARRANTY 19

SPCS Introduction

Introduction

The Servo Pneumatic Control System (SPCS) is a high ow pneumatic motion control valve that when
combined with a position feedback actuator provides a “closed loop” positioning control system that
quickly and accurately positions a payload.

System conguration and setup is completed by using a standard USB connection and Bimba’s SPCS
software. The valve is IP65 compatible and can be used with both linear and rodless actuators with either
an internal or external positioning transducer.

Software, System Connection and Setup

Flowchart outlining software download and establishing valve communications.

Download and install

SPCS USB Interface

from Bimba’s Website

(see section 1)

SPCS2 FLOWCHART

Open SPCS Interface

(see section 2)

Did the Interface Open?

Yes

Select the COM port the

SPCS is connected to

Was the SPCS valve

available for selection

on the dropdown

menu?

Yes

Enable connection

to valve

No

Conrm power

No

is applied to the

Reinstall the program Open interface

Is the valve now

valve

selectable?

Yes

Conrm

MB cable

connection

Did the

interface open?

Yes

Yes

Is the

valve now

selectable?

No

Contact Bimba Support

or your IT personnel

If this worked, go

back to COM port

selection

Go to the Drive

No

troubleshooting

(see section 3)

Does it

work now?

No

Yes

Contact Bimba

Support

You have successfully

installed the software/

driver!

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1. Connecting to Valve

“With the air supply and power turned o”

1. Connect the SPCS-2 to the Bimba position feedback cylinder using cable SPCS-CBL-FBK.

2. If required, remove the top from the SPCS and congure internal jumper as shown in the illustration
below.

3. Connect the SPCS-2 to your power and command sources using cable SPCS-CBL-PWR-CMD.

4. Connect Pneumatic Lines.

a. Connect port 2 of the SPCS-2 to the back of the cylinder and port 4 to the front.

(3/8” O.D. tubing – 10’ or less length is recommended to prevent performance loss)

b. Inlet air should be dry (-40° F dew point) non-lubricated air, non-ammable & non-corrosive dry

gases (0.3 micron ne grade coalescing lter with 5 micron pre-lter) at 0-150psig.

c. Connect Inlet air to Port 1.

Cable: SPCS-SBL-FBK

Cable: SPCS-CLB-PWR-CMD

Power/Command & Feedback Connectors

5. Connect the valve to your computer using USB cable SPCS2-USB-CBL.

6. Must use a coalescing lter.

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1. Connecting to Valve

a. Download the SPCS USB software found on Bimba’s

website:

www.bimba.com/products-and-cad/actuators/inch/position-control/
controllers11/servo-proportional-control-system/

c. Click the “Run” button.

b. After the software package “Bimba SPCS Setup.zip” has

downloaded, double click on the highlighted le, (usually
the le can be found in the Download folder. Then click
open.

d. Click on the “I accept the terms in the License

Agreement”, then click on “Next >”.

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1. Connecting to Valve

e. Click on the “Next >” button. f. Click on the “Next >” button.

g. Click the “Install” button.

h. Click the “Finish” button.

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2. Opening SPCS USB Interface

e. Click on the Bimba SPCS button in the Start Menu,.

Initial Setup Screen

• Communication: Select the Select Port dropdown window: Select a Com Port and click the Enable

Communication check box. If communication is established the remaining screen selections will be-

come available. You may have several Com ports from which to choose – you may have to repeat the
selection process above to nd the correct one.

(All selections are “grayed out” until communication is established)

• Select Signals – Both command and feedback signals are selected by clicking the appropriate button

– 0 to 10V is the default value.

• Enter cylinder bore size and rod diameter using the up or down arrows. (Rodless cylinders: set rod

size at zero)

• Select Port Communication based upon your installation.

• After entry click

The initial setup parameters, as well as those on the Basic Setup and Advanced Setup screens de­scribed below can be saved and reloaded for further adjustments or to program another valve. Upon
clicking the “Save Conguration” button a window will appear that allows you to enter a le name and
save it.

Click this button to load previously saved programs. A window will appear asking you
to select and load a program.

Click this button to save a new program or a program loaded from an existing le to
the valve.

Note: Mouse over “Tool Tips” are provided for each selection.

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3. Basic Settings

Proportional, Derivative, Force Damping, Oset -- At setup the default settings are set at zero. After ad­justment, if necessary they can be reset to the default value by clicking:

Analog Button: Selection allows operation using an external signal source.

PC Slider Button: Selection allows operation by moving the Cylinder Command slider up and down,

extending and retracting the cylinder.

PC Square Wave Button: Sends a square wave command signal based upon the gain perimeters described

below, the minimum/maximum rod positions, ramp up/ramp down and period settings found on the
Advance Setting screen. When selected the cylinder will operate using a square way generated by the
software. You can adjust the gain, rod position and period perimeters during operation to further
understand system responsiveness.

Gain Settings

Proportional

Increase or Decrease

% slower responsive – Higher % quicker response. Note: If too high system becomes unstable. Suggested
starting value 15% (Higher % needed for bore sizes 1-1/16” and below – Lower % needed for bore sizes
above 1-1/16”)

Derivative

Prevents Overshoot

can cause undershoot and creep into the target position as well as system instability. Suggested starting
value 0.

Force Damping

Increase or Decrease Force Damping

% more force damping. Too little force damping can create an oscillating rod condition. Too much force
damping can result in a nonresponsive system. Suggested starting value 15%.

Oset

Oset

the cylinder is facing “rod up”, the oset should be increased. When a cylinder is facing down the oset
should be decreased (Negative setting). Value should be set to 0 for horizontal applications

Save your settings:

- Oset is used when the cylinder is mounted vertically to create symmetrical or balanced motion. If

the cylinders responsiveness to changes in the command or feedback signal. Lower

– Reduces overshoot and soothes system performance. Too high of a percentage gain

– Increases system stability. Lower % less force damping – Higher

Oscillations: If the rod begins a rapid oscillation the Proportional or Force Damping % requires adjustment.

To correct this either decrease the Proporational gain or increase Force Damping

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3. Advance Settings

Determine the electrical oset % between the Cylinder command signal and the Cylinder feedback signal

• Minimum Position Slide: Move the slide to zero

• Maximum Position Slide: Move the slide to 100%

• Cylinder Command Slide: Move the slide to zero (the cylinder should fully retract) – note the per­centage at the top of the Cylinder Feedback Slide. The percentage shown is the oset that should
be adjusted for in setting your command signal to retract the cylinder to a specic position.

• Repeat this process with the cylinder fully extended (Move the Cylinder Command to 100%) Note
the % dierence between the Cylinder Command and the Cylinder Feedback percentages. Use this
to compensate for extending the cylinder to a specic position along the rod length.

(You may need to add the % oset to the required position when using rod positions other than fully extend

and retract)

Period – This sets the time it takes to complete a full cycle.

Minimum Position – Retract; Zero equals full retract; Higher % sets rod retract before full mechanical

retract – Ex. 5” rod, set at 35% - rod retract stopping point equals 1.75”. Prevents piston bottoming out at
full retract.

Maximum Position – Extend; 100% is fully extended. Lower % set maximum extend at less than

mechanical full extend – Ex. 5” rod, set at 85% - full rod extension 4.25”. Prevents piston striking the rod
guide at full extend.

Ramp Up – Increases or decreases extend speed. Higher % reduces speed; Lower % increases speed.

Ramp Down – Increases or decreases retract speed. Higher % reduces speed; Lower % increases speed.

When PC Square Wave is selected and the system is operating you can change the perimeters to further
adjust the valve and cylinder responsiveness.

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3. Linear & Rotary Cylinder Load Vs. Velocity

Maximum Moving Mass

The tables below recommend the maximum moving mass controlled by a SPCS-2 for horizontal and
vertical applications. Information for Bimba’s PFC, Pneu Turn and Ultran magnetically coupled cylinders is
included. Actual mass will vary based on cylinder speed and mechanical assembly
(e.g. friction in cylinder or system, air pressure, etc.)

Linear Cylinder

Horizontal Applications

Bore Size Average Velocity

Without Overshoot @

Max Payload [in/sec]

09 20 50 20 30

17 10 100 20 30

31 15 200 20 30

50 15 315 25 30

70 15 450 20 20

Maximum Payload

[lbs.]

Average Velocity @ 50%

Max Payload

[in/sec]

Average Velocity @ 25%

Max Payload [in/sec]

Linear Cylinder

Vertical Applications

Bore Size Average Velocity

Without Overshoot @

Max Payload [in/sec]

09 70 5 100 100

17 70 10 60 60

31 50 30 40 60

50 15 95 30 30

70 20 135 20 20

Maximum Payload

[lbs.]

Average Velocity @ 50%

Max Payload

[in/sec]

Average Velocity @ 25%

Max Payload [in/sec]

Rotary Actuator

Rack and Pinion - Single Rack

Bore Size Rotation Average Velocity Max Torque

1-1/2” 0 to 360° 150° per second 30 in/lb.

2” 0 to 360° 150° per second 84 in/lb.

Rack and Pinion - Double Rack

Bore Size Rotation Average Velocity Max Torque

1-1/2” 0 to 360° 150° per second 60 in/lb.

2” 0 to 360° 150° per second 144 in/lb.

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3. Rodless Cylinder Load Vs. Velocity

Rodless Cylinder

Horizontal Applications

Bore Size Average Velocity With-

out Overshoot

@ Maximum Payload

[in/sec]

USS-09X-L 6 84 16 27

UGS-09X-L 10 104 20 36

USS-17X-L 8 260 22 27

UGS-17X-L 7 260 21 30

Maximum Payload

[lbs.]

Average Velocity @

50% Maximum

Payload

[in/sec]

Average Velocity @ 25%

Maximum Payload

[in/sec]

Rodless

Vertical Applications

Bore Size Average Velocity With-

out Overshoot

@ Maximum Payload

[in/sec]

USS-09X-L 24 12 26 28

UGS-09X-L 13 24 25 30

USS-17X-L 9 60 10 13

UGS-17X-L 10 48 17 22

Maximum Payload

[lbs.]

Average Velocity @

50% Maximum

Payload

[in/sec]

Average Velocity @ 25%

Maximum Payload

[in/sec]

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3. Cylinder Performance Graphs

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3. Troubleshooting Chart

Symptom Probable Causes Corrective Action

System Totally Unresponsive Power not Applied Apply power, check all power wiring

Air O Turn air on

Proportional Gain too Low Basic Settings – Increase Proportional

Gain

Inverted Sensor Polarity Initial Setup – Click the “Invert Feedback

Sensor Polarity” checkbox

Pneumatic Connections to Cylinder are

Backwards

System Mildly Responsive or Sluggish Proportional Gain too Low Basic Settings – Increase Proportional

Force Damping Gain too High Basic Settings - Decrease Force Damping

Power Supply Voltage not Stable Check power wiring; change power supply

Cylinder too Small Decrease moving mass, increase cylinder

System Freezes Fully Extended or
Retracted

System Fails to Operate or is Inaccurate Incorrect Wiring Verify all wiring is as shown in the System

System Oscillates Force Damping too Low Basic Settings - Increase Force Damping

System Overshoots Proportional Gain too High Basic Settings - Decrease Prportional Gain

System ‘Buzzes’ Input Signal Noise (possibly 60Hz) Verify that large or high power machinery

No Feedback Signal Connect Feedback Signal

Feedback Connected Improperly Verify all wiring is as shown in application

Cylinder Connected Improperly Verify airline connections

Mechanical System Insure mechanical system is free from

Proportional Gain too Low Basic Settings – Increase Proportional

Force Damping Gain too high Basic Settings - Decrease Force Damping

Oset Gain Adjusted incorrectly Basic Settings - Adjust Oset

Incorrect Cylidner Bore or Rod Diameter

Entered

Air Leaks Insure there are no air leaks in the system

SPCS-2 Sticking Insure that inlet air meets valve speci-

Proportional Gain too High Basic Settings - Decrease Proportional

Input Signals not connected Verify all wiring as shown in the “System

DC Common not connected Verify all DC common connections

Initial Setup – Click the “Transposed”

button under Port Connection

Gain

size, or increase inlet pressure.

examples and as described in the “System
Setup” section of this document

Setup section of this document

binding and high friction.

Gain

Initial Setup - Check Cylidner Bore and
Rod Size

cations. See “System Setup” – Contact
Bimba

Gain

is not operating nearby. Also, verify input

signal integrity by examining the signal

with an oscilloscope.

Setup” section of this document

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3. Technical Data

Mechanical Specications

Pressure: 0 – 150 psig (0 – 10 bar) Un-lubricated, Dry, Neutral Gas

Ports: 1/4” NPT

Connector: 4-pin M8 x 1 (male) and 3-pin M8 x1 (male)

Mounting: 2 x 10-32 thru Holes

Temperature Range: 32°F- 104°F (0°C - 40°C)

Filtration: 5 µm particulate

0.3µm coalescing

Weight: 2.0Lbs. (0.91 kg)

Body: Aluminum 6061

Performance

Position Accuracy: +- 1% of full stroke

Repeatability: 3mV

Flow: 46 SCFM @ 80 psig (820 SLPM @ 6 bar)

Leak Rate: 12 SCFH @ 150 psig (5.7 SLPM @ 10 bar)

Electrical Specications

Power: 24 VDC nominal @ 20W

Command Input Impedance: 100kΩ

Feedback Input Impedance: 100kΩ

Command Input: Congurable 0…10 VDC; 4…20mA

Feedback Input: Congurable 0…10 VDC; 4…20mA

Excitation: +10V (15mA max)

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4. Appendix - Auto Com Port Detection

Step 1: How to Install/Detect the SPCS Communication Drives

a. Click the Start Menu. b. Then click “Control Panel”.

c. Double Click on the “Device Manager”. d. This will open the Device Manager Window. (The SPCS

drivers are located under Ports (COM & LPT) or Universal
Serial Bus controllers.

e. To detect any issues, look for devices in the Device

Manager that have an icon similar to the following (USB
with yellow exclamation mark signifying that the driver
is not recogonized). If no issues are detected, please
continue to Step 2.

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f. Once the faulity driver has been identied, right click on

the driver (shown in blue) then left click on “Properties”.

4. Appendix - Auto Com Port Detection

g. Next, select on the Driver tab (the following image is for

example purposes only, your driver properties menu may
appear dierently).

i. A new window will open. Click “Search automatically

for updated driver software” (to enable to search online
{where the drivers are typically found}, establish an
interent connection prior to searching).

h. Click on “Update Driver”.

j. After the process is complete, the device under the Ports

section on the Device Manager window should be visible
and free of errors. If not, continue onto Step 2. In this
case, Port 7 is the connection to the SPCS.

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4. Appendix - Auto Com Port Detection

Step 2: How to Install/Detect the SPCS Communication Drives (continued)

a. Click the Start Menu. b. Click on “Computer”.

c. Double click on the hard drive icon (usually C: or D:). d. Double click on “Program Files (x86).

e. Double click on the “Bimba Folder”. f. Double click on the “SPCS Folder”.

g. Double click on the “Driver Folder”. h. Double click on the “CDM20828_Setup” application.

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4. Appendix - Auto Com Port Detection

i. Extract the les by clicking on the “Extract” button. j. Click the “Next >” button.

k. Click “Finish” as the driver has now successfully installed

itself.

Go back to section 2: Opening SPCS Interface and restart the process of nding the COM Port.
If you still cannot locate the communicate the COM port, please contact the Bimba Manufacturing support
team.

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Notice & Warranty

Preface

Data, Illustrations, Alterations

Data and Illustrations are not binding. Bimba reserves the right to alter products in line with our policy of
continuous product development.

Use and purchase of this product is subject to Bimba Mfg. Terms and Conditions of Sale and Use.
Improper installation or use voids warranty. Consult factory regarding special applications. Specications
are subject to change. Reasonable eorts have been made to provide useful and correct information in
this document, but this document may contain errors and omissions, and is subject to change.

Contact: Bimba Manufacturing Customer Support 800-44-Bimba or [e-mail] or your local Bimba
Distributor for additional information.

Microsoft are registered trademarks of Microsoft Corporation; Windows is a brand name of the Microsoft
Corporation in the USA and other countries.

Bimba is a registered trademark of Bimba Manufacturing Company.

Copyright

All rights are rserved. No part of this document may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including copying, processing or online le transfer, without permission
in writing by Bimba Manufacturing Company. You are not authorized to translate this document into any
other language.

2014 Bimba Manufacturing Company. All rights reserved.

WARNING:

Installation and operation of electric and high pressure systems (uids and compressed gas) involves risk

including property damage and personal injury or death.

Installers and users should be properly trained or certied and take safety precautions. This product may
cause death, personal injury, or property damage if improperly used or installed.

The information in this document and other information from Bimba Mfg. and its authorized representatives
are intended for use by persons having technical expertise in selecting and using these products. Product
owners (“you”) should analyze all technical and safety requirements of your specic application, including
the consequences of any possible failure, before selecting a product. This product may not be suitable
for all applications, such as those acting upon people. Suitability is solely your responsibility. Because the
requirements for each application may vary considerably, you are solely responsible for conducting any
testing or analysis that may be required to determine the suitability of the product for your application, and
to ensure that all performance, safety and warning requirements for your application are met.

While this product is low voltage, it contains open-frame electronic components and care should be taken
to prevent un-intentional contact with the productt to avoid damage to the person or property.

Warranty:

This product is covered by a one year Bimba Mfg. limited warranty. Use without a coalescing lter voids the
warranty. Contact Bimba Mfg. or visit website for more details.

2014.01.23 rev4 19