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Emerson MultiFlex ESR Скачать руководство пользователя страница 16

11 • MultiFlex ESR I&O Manual

026-1720 Rev 4 06-APR-2010

B. Valves Setup Screen

The Valves Setup screen (C4 tab) allows you to
specify the type of valve connected to each out-
put on the MultiFlex ESR board:

Enter specifics about the valves that are
connected to the MultiFlex ESR.

All valves on this screen are listed in eight rows
numbered one (

#1

) through eight (

#8

). The

number on each row corresponds to the similarly
numbered point on the MultiFlex ESR. For each
MultiFlex ESR point that has a valve attached to

it, define the following fields:

OvrClose%

The Over Close Percentage is the

percentage of the MaxStep parameter that
the valve will attempt to close past its 0%
limit for defrost. This will ensure the valve is
fully closed when the circuit associated with
the valve goes into defrost.

For example, when a valve with an Over
Close Percentage of 5% and a Maximum
Steps value of 800 is called upon to over
close (i.e., defrost), the valve will travel to
the step that it counts as 0% and then attempt
to close 40 more steps. By doing this, any
error that may cause the valve to be slightly
open at 0% will be eliminated.

It is recommended that this value be set to
5% for all Emerson Flow Control valves. For
more information, refer to the Valve
Specifications tables at the end of this
manual.

Step Rate

The Step Rate field corresponds to

the valve manufacturer’s recommended step
rate in steps-per-second. The default, 50
steps per second, is the correct step rate for
the ESR 12 and ESR 20 valves. If using
different types of valves, refer to the Valve
Specifications tables at the end of this
manual and enter the rate listed for your
valve type.

MaxStep

The MaxStep field is where you must

enter the total number of steps the valve
travels between fully closed (0%) and fully
open (100%). This is a physical property of
the valve. Refer to the Valve Specifications
tables at the end of this manual to determine
the total number of valve steps.

Figure 6-8 - General Properties Screen

Figure 6-9 -Valves Setup Screen

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Содержание MultiFlex ESR

Страница 1: ...026 1720 Rev 4 06 APR 2010 MultiFlex ESR Installation and Operation Manual ...

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Страница 3: ...ined herein In no event will Computer Process Controls Inc be liable for any direct indirect special incidental or consequential damages resulting from any defect or omission in this manual even if advised of the possibility of such damages In the interest of continued product development Com puter Process Controls Inc reserves the right to make improvements to this manual and the products describ...

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Страница 5: ...ETTING THE TERMINATING RESISTANCE JUMPERS 4 5 SETTING THE NETWORK ADDRESS AND BAUD RATE 4 6 SOFTWARE OVERVIEW 5 6 1 PROGRAMMING E2 VERSION 2 21 AND ABOVE 6 6 2 STEP 1 ADD A MULTIFLEX ESR 6 6 3 STEP 2 ADD A STANDARD CIRCUIT 7 6 4 STEP 3 ASSOCIATE THE MULTIFLEX ESR 7 6 5 STEP 4 SET UP THE STANDARD CIRCUIT 8 6 6 STEP 5 SET UP THE MULTIFLEX ESR 10 7 VALVE ZEROING 12 7 1 STEP 1 12 7 2 STEP 2 12 8 HAND ...

Страница 6: ...over the RS 485 I O network unlike the previous version of the board which communi cated with the controller over the Echelon net work Center Tapped Transformer For power a Class 2 80VA 24VAC center tapped transformer is required for each Multi Flex ESR board Previous board versions did not require a center tapped power source Molex Connectors Board P N 810 1398 The discontinued MultiFlex ESR boar...

Страница 7: ...issipation 2 2 Snap Track Installation Boards not supplied with an enclosure are sup plied with a snap track for easy installation The insulation sheet and I O board must be removed from the track before the track is mounted The snap track is mounted using the 0 1875 mount ing slots Figure 2 2 shows this installation pro cedure 3 Wiring 3 1 Power Each MultiFlex ESR board requires a Class 2 80VA 24...

Страница 8: ...tch all wire colors except the green wire Instead connect the green wire to the silk screen blue wire legend Figure 3 2 3 2 1 Molex Connector Discontinued Board Wiring The stepper valves are wired to the board by connecting the stepper valve molex connector to one of the eight molex connectors along the top of the board Figure 3 4 Use the cable and cable harnesses that are supplied with the valves...

Страница 9: ...n one device at the beginning and one device on the end must be terminated by placing all three termination jumpers in the UP position All other devices on the daisy chain must be set to the DOWN position Figure 4 1 shows the proper terminating resistance jumper settings for the MultiFlex ESR board For more information about network configura tion and termination see the I O Network wiring section...

Страница 10: ...ified with the Pulldown Percent parameter The circuit will stay in Pull down until the case temperature reaches the set point or the maximum time allowed in Pulldown has been exceeded The maximum time in Pull down defaults to zero which disables the Pull down mode By setting this to a valid time up to 2 hours Pulldown mode will be enabled Valve Failsafe The Standard Circuit has additional valve fa...

Страница 11: ...e alarms 6 1 Programming E2 Version 2 21 and Above Successful installation of a MultiFlex ESR requires you to perform five main programming steps in the E2 software 1 Add MultiFlex ESR Board s The E2 refriger ation controller must be programmed to commu nicate and utilize the MultiFlex ESR board s on the network 2 Add Standard Circuit s The circuit must first be added in the E2 before a circuit ca...

Страница 12: ... When a valve on the MultiFlex ESR board is associated with a circuit the two are automati cally connected and can communicate This auto hookup of circuit valve control and alarm parameters between the circuit and the Multi Flex ESR application minimizes the set up of standard circuit s for MultiFlex ESR Step 4 To access the MultiFlex ESR Association screen from the Home screen 1 Press 2 Press 3 U...

Страница 13: ...ircuit application 1 Press 2 Press CIRCUITS 3 If more than one circuit has been added the Circuits Summary page will open displaying all circuits in the E2 Use the arrow keys to highlight the circuit you wish to edit and press 4 From that circuit s Status screen press SETUP A General Setup Screen Under the General Setup screen C1 tab the Temp Ctrl Strat field tells the E2 what method of control wi...

Страница 14: ...ry will be logged if a scheduled defrost is disabled due to a MultiFlex ESR comm failure When CommFailDefrost is set to DISABLE the advisory priority and type can be configured The following two advisory parame ters will appear AdvPrior lets the user set the priority of the Notice or Alarm logged if a defrost is disabled due to a MultiFlex ESR comm fail ure AdvTyp lets the user select between Noti...

Страница 15: ...il EEPR The MultiFlex ESR uses the value set in this field if the case temperature sensor fails This feature is always available Temp Fail Use Avg If an ECT Flow valve has been se lected the MultiFlex ESR will have the option to use the daily average valve if the case temperature sen sor fails This option is only available when valve type is set to ECT Flow Comm Fail EEPR The MultiFlex ESR uses th...

Страница 16: ... to over close i e defrost the valve will travel to the step that it counts as 0 and then attempt to close 40 more steps By doing this any error that may cause the valve to be slightly open at 0 will be eliminated It is recommended that this value be set to 5 for all Emerson Flow Control valves For more information refer to the Valve Specifications tables at the end of this manual Step Rate The St...

Страница 17: ... to Other and the valve harness becomes disconnected while the MultiFlex ESR board is attempting to control zero the valve after the disconnect is resolved 7 1 Step 1 To zero the valve first configure the Step Rate and Max Step parameters for the valve type The configuration can be done with either the E2 controller or CPC s hand held terminal HHT For the parameters to be configured with the E2 th...

Страница 18: ...et points have not been configured the MultiFlex ESR board is using factory defaults for valve configura tions 8 2 2 Output Status Screens The third and fourth screens will show the state of all valves Valves 1 4 are seen on one screen and continue with 5 8 on the next These screens will allow an override to be placed on the valve s position Also shown are status indicators I Valve is idle O Valve...

Страница 19: ...fault is 5 Fail can be set from 0 100 Default is 100 For Valve choose the type of valve being used Set to ECT Flow for ECT valve types or Other for any other type of valve Max Steps is the total number of steps the valve travels between fully closed 0 and fully open 100 Rate corresponds to the step rate of the valve in steps per second The default 50 steps per sec ond is the correct step rate for ...

Страница 20: ... 24 VDC 12 VDC 24 VDC Control Suction Suction Liquid Liquid Liquid Step Rate 50 50 50 50 30 ok 30 Max Steps 500 800 1 800 800 384 360 2 OverClose 5 5 5 5 5 Total Watts 10 10 10 3 4 12 8 Phase 3 Resistance 29 ohms 115 ohms 29 ohms 115 ohms 29 ohms 116 ohms 84 ohms 336 ohms 23 5 ohms 95 ohms Hysteresis 0 0 0 0 0 Motor Bipolar Bipolar Bipolar Bipolar Unipolar products ESR CC100 CCB ESR CC100 CCB CC10...

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