Profibus Module for SCU-750/800/1400/1500/1600D397-51-500
Declaration of Conformity
We, Edwards Limited,
Crawley Business Quarter,
Manor Royal,
Crawley,
West Sussex, RH10 9LW, UK
declare under our sole responsibility, as manufacturer and person within the EU authorised
to assemble the technical file, that the product(s)
Profibus Module for SCU-750/800/1400/1500/1600 0397-51-500
to which this declaration relates is in conformity with the following standard(s) or other
normative document(s)
EN61326-1:2013 Electrical equipment for measurement, control and laboratory
(Class B Emissions, Use. EMC requirements. General requirements
Industrial Immunity)
and fulfils all the relevant provisions of
2014/30/EU Electromagnetic Compatibility (EMC) Directive
Note: This declaration covers all product serial numbers from the date this Declaration was
signed onwards.
16.07.2015, Eastbourne
Larry Marini, Senior Technical Manager Date and Place
This product has been manufactured under a quality management system certified to ISO 9001:2008
Edwards and the Edwards logo are trademarks of Edwards Limited.
D397-51-880 Issue E
CAUTION
WARNING
1INTRODUCTION
1.1Scope and definitions
This manual provides installation, operation and maintenance instructions for the Edwards SCU Series Profibus
Module. The module must be used as specified in this manual.
Read this manual before installing and operating the module. Important safety information is highlighted as WARNING
and CAUTION instructions; these instructions must be obeyed. The use of WARNINGS and CAUTIONS is defined below.
Warnings are given where failure to observe the instruction could result in injury or death to
people.
Cautions are given where failure to observe the instruction could result in damage to the equipment, associated
equipment and process.
INTRODUCTION
Throughout this manual, page, figure or title numbers are sequential.
The following labels appear on the module:
Warning - refer to accompanying documentation.
Edwards offer European customers a recycling service.
Edwards take no responsibility for damage or injury caused by improper use of the equipment.
This equipment provides remote control of an Edwards Turbo pump. Refer to the safety
information in the turbo pump control unit manual.
This unit should not be relied upon for safety related functions.
The SCU Series Profibus Module provides a Prof ibus DP V0 slav e interfac e for the SCU turb omolecular pump control
units listed in Section 1.3. The module communicates with the control unit using the RS232 interface. Commands
received from the Profibus network are relayed to the control unit. Data from the control unit is stored in the module
and transmitted over the Profibu s network when requested. The front panel of the module has four LE Ds which
indicate the status of the module and the Profibus network. The Profibus slave address is set using rotary switches.
The back panel of the module has a 9-way 'D' connector for the Profibus network, a 9-way 'D' connector for the RS232
link to the control unit and a power connector.
Refer to the product manuals listed in Section 1.3 for full operation of the turbo pump control units.
1.3Applicable SCU models
The Large-Medium Series Profibus Module is for use with the following SCU models:
SCU Control UnitProduct Manual
SCU-750MT-56E-101
SCU-800MT-49E-101
SCU-1400MT-72E-101
SCU-1500MT-59E-101
SCU-1600MT-76E-101
STP-iX455 series control unitMT-64E-002
Edwards and the Edwards logo are trademarks of Edwards Limited.
2TECHNICAL DATA
WARNING
2.1Mechanical data
Weight0.28 kg
Dimensions129 x 30.5 x 117 mm
Refer to Section 3.2 for installed dimensions and panel cut-out.
2.2Operating and storage data
Ambient operating temperature0°C to 40°C
HumidityMax 90% RH non-condensing
Maximum altitude2000 m
IP ratingIP30 - indoor use only
Ambient storage temperature-30°C to 70°C
D397-51-880 Issue E
TECHNICAL DATA
2.3Electrical data
Do not exceed the maximum supply voltage. Excessive supply voltage will cause permanent
damage to the control electronics and may result in a mechanical hazard in some failure
conditions.
Electrical supply9 V d.c. to 52 V d.c.
Power consumption5 W max. Switch on surge 500 mA max.
FuseNo internal fuse
2.3.1d.c. Power connector
Connector type2 Way Receptacle. Mating part is cable-mount
Terminal Block (supplied). Suitable parts include:
Phoenix MSTB 2.5/2-G-5.08; Weidmuller BLZ 5.08/2;
Amp 796634-2; IMO 21.950/2 (Refer to Figure 1).
Figure 1 - Pin connections for the 2-way power connector
Connector type9-way ‘D’ type socket (Refer to Figure 2)
Profibus Data signalsElectrically compliant with RS485 specification.
Profibus Power Supply10 mA supply (protected) for external terminator
ChassisFor Profibus cable screen connection
Repeater control signalDigital signal, nominally 0-5 V but with series 340 ohm
Figure 2 - Pin connections for 9-way ‘D’ type socket
Isolated from chassis.
resistors if required.
resistor. High = module transmitting. Low = Receiving
or Idle.
Table 1 - Pin connections for 9-way ‘D’ type socket
PinAllocation
1
2
3
4
5
6
7
8
9
Shell
Chassis (box)
Not connected
Profibus Data + (B)
Control Signal for Repeater
Profibus Data reference (isolated)
Profibus 5V output (isolated)
Not connected
Profibus Data - (A)
Not connected
Chassis (box)
Remove all of the packaging material and check the module . If the module is damaged, follow the Edwards return of
equipment procedures that are laid out in the back of this manual. Do not use the module if it is damaged.
Check that the package contains the items that are listed in Table 3. If any of these items are missing , notify the
supplier in writing within three days. If the module is not to be used immediately, store in suitable conditions as
described in Section 6.1.
The unit is IP30 rated. Please ensure that the unit is not installed where fluids can enter into the Module.
The module can be rack mounted, panel mounted, DIN rail mounted or free-standing. Sufficient space must be
provided at the rear of the unit for the cables. If right-angled connectors are used additional space will be required.
If the unit is to be used free-standing it should be laid flat to ensure stability. The four self-adhesive rubber feet can
be used to prevent sliding. Figure 4 shows the dimensions of the module with the rubber feet attached.
Edwards and the Edwards logo are trademarks of Edwards Limited.
D397-51-880 Issue E
3.2.1Rack mounting
For Rack mounting the unit should be fitted in a space 6HP wide x 3U high, using the 2-off M2.5 screws provided.
3.2.2Panel mounting
For panel mounting cut the aperture in the panel using the dimensions shown in Figure 5. The module can be fixed
into the panel with the 2-off M2.5 screws.
Figure 5 - Panel mounting the module
INSTALLATION
3.2.3DIN rail mounting
For DIN rail mounting the 2 clips should be attached to the module using 2-off M3 screws provided (one in the centre
of each clip), as shown in Figure 6. The clips should then be roughly aligned with the box sides. The clips can then
be fitted to a suitable DIN-rail, as shown in Figure 6.
It is recommended to use end stops on a DIN rail system.
Figure 6 - DIN rail mounting the Module
3.3Electrical connections
If access to the DC power connector is restricted an additional isolation device should be provided
which will be easily accessible by an operator.
1. A 2 m cable is supplied in the kit fitted with 4-40 UNC jack screws at both ends. Some of the SCU control units
use M3 jack sockets, but if applicable, the cable supplied in the kit can be used. If not, please make up a cable
according to the table below.
Note 1: The cable must not connect to any of the other 6 pins of the 9-way D-type plug (SCU end).
Note 2: It is recommended that the cable be screened with the screen connected to the backshell at each end.
2. C onnect the R S232 connec tor of the Profibus module to connector X3A of the SCU. Do not use connector X3B of
the SCU.
Connection
Profibus Module
9-way ‘D’ type socket
3. Connect the Profibus network to the Profibus connector using standard Profibus cables. Refer to Section 3.4 for
details of bus termination.
4. Connect a suitable power supply to the DC power connector using the mating cable-mount terminal block
supplied.
Edwards and the Edwards logo are trademarks of Edwards Limited.
D397-51-880 Issue E
Figure 7 - Profibus module rear connections
Take care during cable installation that all electrical cables are safely secured and cannot present a trip hazard.
3.4Bus termination
Bus termination is not supplied with the module, but must be used as for a normal Profibus DP system. Bus
termination must be used at both end s of th e Prof ibus tr unk and not anywhere else. If the module is placed at one
end of the trunk a connector containing the standard termination resistors should be used. The appropriate 5 V and
0 V signals are supplied on the standard pins for this purpose.
3.5SCU-750 control unit set up
INSTALLATION
The control unit command interface and communication parameters must be set up. The procedure for how to do
this is detailed below:
1. Ensure the small slide switch on the front of the control unit labelled "REMOTE" is set to the ON position.
2. Enter the "Parameter Set Mode" by pressing the SELECT and UP switches simultaneously.
3. For each menu item the options can be seen and changed by pushing the UP and DOWN buttons. W hen th e menu
item parameter is set to the desired option press the ENTER button, which will temporarily set that parameter
to the value selected and immediately move to the next parameter.
4. Follow this process for all 13 parameters as shown in Table 5.
Table 5 - SCU-750 control unit command interface and communications parameters
ParameterValue to set
1Remote modeRS232/485 Com. Note: DO NOT SET RS232/485 Modbus or Lonworks
or I/O Remote. This is the only parameter which will not be at the
factory default value.
2Speed SetpointValue in RPM. This must not be greater than the maximum value for
the pump.
3TMS functionDisable - unless the system has this additional hardware.
4Inhibit CommandDisable
5Leak valve optionDisable
6Second Damage limit Enable
7Baud Rate9600
8Bit Length8
9Stop bit1
10ParityNone
11Driver TypeRS232
12Node addressNot important
13StorageYes - Read instructions below
5. When the Storage parameter is due to be set select Yes and then press ENTER to store the other 12 parameter
values. Wait until the display shows "Storage OK" then press the SELECT switch to exit the parameter setting
mode.
6. Note that if during the parameter setting process no switch is pressed for 1 minute, the parameter setting mode
will end and all changes will be lost. In this event repeat the process.
3.6SCU-800/1400/1500/1600 control unit set up
The control unit command interface and communication parameters must be set up. Either use the procedure below
or refer to the control unit manual for the procedure to do this.
1. Ensure the small slide switch on the front of the control unit labelled “REMOTE” is set to the ON position.
2. Enter the “Parameter Set Mode” by pressing the SELECT and UP switches simultaneously.
3. F or each men u item th e value can be changed by usi ng the UP an d DOWN but tons. The ENTER button will allow
access to sub-menus and temporarily set that parameter. The SELECT button generally has a “jump-over”
function. Note if no switch is pressed for 1 minute, the parameter setting mode will end and all changes will be
lost. In this event repeat the process.
4. 1st menu item is REMOTE MODE. Push ENTER and adjust setting (UP/DOWN buttons) until the value shown is
COM1. Press ENTER to temporarily store.
5. 2nd menu item is Speed Setpoint. Push SELECT to leave unchanged.
6. 3rd menu item is TMS function. Push SELECT to leave unchanged.
7. 4th menu item is Inhibit Command. Push SELECT to leave unchanged.
8. 5th menu item is Leak Valve Option. Push SELECT to leave unchanged.
9. 6th menu item is Warning function. Push SELECT to leave this parameter unchanged.
10.7th menu item is COM1 Set. Push ENTER as this must be correct.
Set Baud Rate to 9600 and push ENTER.
Set Bit length to 8 and push ENTER.
Set Stop bit to 1 and push ENTER>
Set Parity to None and push ENTER.
Set Driver type to RS232 and push ENTER.
RS485 ID push SELECT to leave unchanged.
Push SELECT to exit COM1 Menu.
11.Next menu item is COM2 Set. Push SELECT to leave unchanged.
12.Next menu item is STORAGE. Select YES then push ENTER to start the storage process and wait until the display
shows “Storage OK”. N.B. for successful storage the pump must be connected to the control unit.
13.After “Storage OK” message push ENTER.
14.The SCU then p rovides the opportunity to modify the date and time. Press SELECT to leave unchanged.
3.7STP-iX455 series control unit set up
COM1 RS-232 settings need to be as factory default values (Baud Rate: 9,600 bps; Bit Length: 8 bit; Stop Bit: 1 bit;
Parity: None; Drive Type: RS232).
In order to obtain control by Profibus the iX-455 control unit must also be set up for remote operation. See
Section 9.2.4 of the control unit manual (“Input Operation Port Setting”) for instructions on how to do this.
Edwards and the Edwards logo are trademarks of Edwards Limited.
D397-51-880 Issue E
4OPERATION
4.1Profibus system information
The Profibus module is for connection to a Profibus DP network and operates as a V0 slave only.
The Profibus master requires a GSD file for each slave. The GSD file for this slave is contained on the CD supplied
with the unit and has the file name "EDW0B32.GSD", which is registered with the Profibus Association.
When configuring the system the "ID" number will be 0B32 and the unit's description will be
"STP series (except SCU-350)".
Note:The GSD file should not be altered.
4.2Simple set up instructions
1. Install the module and connect the cables as described in Section 3.
2. Set up the STP pump and SCU control unit according to the instruction manuals.
3. Set the address switches on the Profibus module.
OPERATION
4. Ap ply power (or power cycle the Profibus module, for example by disconnecting then reconnecting the power
connector).
5. Load the GSD file into the Profibus system configurator.
6. Select "STP series (except SCU-350)" as a slave and set the address to match the address switches.
7. Select Module 01 to provide on and off control of the turbo pump and select Module 02 to monitor turbo pump
state. Add other Profibus software modules as required.
Data exchangeModule is in data exchange as defined by the Profibus standard.
Off-lineModule is not in data exchange as defined by the Profibus standard.
ErrorON at the same as Offline LED = Configuration or parameterisation
error:
Flashing at 1 Hz = Invalid address selected.
PowerInternal 5 V supply is operating.
Upper address
switch
Lower address
switch
Sets value of upper nibble of address (Hexadecimal).
Sets value of lower nibble of address (Hexadecimal).
4.4Address set up
The module address can be set from 0 to 125 using the two hexadecimal rotary switches on the front panel. The lower
switch defines the lower half of the address byte (nibble) and the uppe r switch defines the upper half of the address
byte. Each node on a Profibus network must have a unique address. The address switches will only be read by the
unit at power up. Any change of address setting after power up will be ignored until next power up.
Note:If the address is set to a value greater than 125 (decimal) the RED error LED will flash at around 1 Hz and
the module will go on-line. If this occurs, either change the address and cycle the power or remove power
and change the address.
4.5Baud rate
All 10 standard DP baud rates are supported. Thes e are: 9.6Kbd; 1 9.2Kbd; 45.45K bd; 93.75Kbd; 18 7.5Kbd; 500K bd;
1.5Mbd; 3Mbd; 6Mbd; 12Mbd. The unit has no facility for adjusting baud rate as detection is automatic and will
therefore respond to the baud rate chosen by the master.
4.6Software format
The slave software is based upon a modu lar configurable architecture so the user has considerable control of the
contents of the data exchange messages.
The software modules (defined in the GSD files) relate to the control unit serial communications objects.
When the unit is linked onto the Profibus it will be parameterised and then configured before entering data exchange.
The parameterisation and configuration choices are in the GSD file and its comments describe the data content of
the input, output and parameterisation bytes. These choices will often be made using a third party configurator such
as SyCon that presents a user-friendlier interface.
16-bit valves are transmitted with the MSB first and the LSB last.
Edwards and the Edwards logo are trademarks of Edwards Limited.
D397-51-880 Issue E
4.6.1Parameterisation
Parameterisation is used for control values which are only to be changed occasionally. These values are only
transmitted at the start of data exchange. The only value used as a parameter in these units is speed setpoint. This
is included with module18. See Section 4.7.18 for deta ils. If module18 is not s elected as part of the data exchange
configuration the existing value of speed setpoint will be used, as this is retained following a power down.
4.6.2Configuration
During configuration the user can define what modules are required and in which order the data is transferred. The
unit simply adds the input and output data bytes to the message maps in the order that they are defined in the
configuration message.
Example:
Module = Mod_A 3 bytes in (Ai1, Ai2, Ai3), 1 byte out (Ao1)
Module = Mod_B 2 bytes in (Bi1, Bi2), 2 bytes out (Bo1, Bo2)
A) Configure Mod_A, Mod_B gives
Output map: -
Byte1Byte2Byte3
Ao1Bo1B02
OPERATION
Input map:-
Byte1Byte2Byte3Byte4Byte5
Ai1Ai2Ai3Bi1Bi2
B) Configure Mod_B, Mod_A gives
Output map:-
Byte1Byte2Byte3
Bo1Bo2Ao1
Input map:-
Byte1Byte2Byte3Byte4Byte5
Bi1Bi2Ai1Ai2Ai3
Data is always referred to the Master so output is Control data from Master to Slave and Input data is feedback from
Slave to Master. There are many software modules a nd many bytes of da ta. Care must be tak en in correctly selecting
and aligning the data into the system.
4.6.3Configuration failure
Most of the software modules can be configured with most of the turb o pump control units but there are some
exceptions. Which SCU’s can be used with which Profibus software modules is shown in Section 4.7.
If one of these modules is inappropriately configured the unit will not enter data exchange. Instead the number of
the first failed module will be placed in the extended diagnostics. Additionally the unit’s front panel error LED (red)
will be illuminated.
The modules use extended diagnostics in the format below.
Max_Diag_Data_Len = 12
Bytes1-678 and 810 and 1112
MandatoryNo of bytes of
Description
Loss of serial comms may be due to the SCU being turned off or the RS232 cable being disconnected. It will take up
to 9 seconds to detect. If this occurs the Slave will signal the Master with a ‘Data High’ flag in the Frame Control byte
but will continue to be in Data Exchange with the data values all set to zero. The extended diagnostics message will
be available to the Master.
If RS232 communications are restored the Slave will again signal the Master with a ‘Data High’ flag in the Frame
Control byte and will return to ‘good’ Data Exchange values. Again the extended diagnostics message will be available
to the Master.
extended
diagnostics (6)
4.6.5Data exchange values
Module failed
parameterisation,
MSB in 8, LSB in 9
Module failed
configuration,
MSB in 10, LSB in
11
Serial comms
lost (0=OK,
1=lost)
Data update rate (latency) is fixed and not affected by which software modules are included in the Data Exchange
message. The update rate is not the same for all parameters and will be up to 9 seconds for some parameters.
At the beginning of Data Exchange, particularly but not o nly, when Data Exchange has started du e to power up of
either the Turbo control unit or the Profibus Module or due to RS-232 cable reconnection, the data values will either
be old or zero. These values will be successively corrected over the first few seconds of Data Exchange. For some
parameters this process will take up to 9 seconds.
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 1 byte which indicates pump state with data values as shown in the table below:
Applicability: SCU-800/1400/1500/1600. SCU-750 will re ject this module and lead to a configuration failure.
Output bytes: None
Input bytes: 2 bytes which represent warning flags from pump. Each warning is represented by a single bit in
the message as shown in the table below. Value = 0 if warning not detected, value = 1 if warning
detected.
Bit No.Warning indicated
0Bad pump transmit
12nd damage limit
21st damage limit
3Imbalance Xh
4Imbalance Xb
5Imbalance Z
6Pump run time over
7Pump overload
8Pump record error
9PCB record error
10Low RTC battery
11Clock data lost
12Recover by aux data
13-15Reserved
These flags are treated as a 16-bit number so the MSB byte is transmitted first.
Edwards and the Edwards logo are trademarks of Edwards Limited.
D397-51-880 Issue E
4.7.4Module 04 - Failure flags
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 16 separate bytes which represent failure flags from pump. Each warning is represented by a
single bit in the message as shown in the table below. Value = 0 if warning not detected,
value = 1 if warning detected.
ByteValueMeaningValueMeaning
1bit 0RAM errorbit 4TMS Overheat
bit 1EEPROM errorbit 5Mains Failure
bit 2TMS Higher Tempbit 6Power Supply Failure
bit 3TMS Breaker Tripbit 7Overspeed 1
2bit 0Driver Overvoltagebit 4Driver Overload
bit 1CAUTION: CNT heat 1bit 5Disturbance X_H
bit 2CNT Overheat 1bit 6Disturbance Y_H
bit 3Driver Overcurrentbit 7Disturbance X_B
3bit 0Disturbance Y_Bbit 4CNT Overheat 2
bit 1Disturbance Zbit 5T.Cable Disconnected
bit 2Motor Overheatbit 6P.Cable Disconnected
bit 3CAUTION: CNT Heat 2bit 7E.Valve Disconnect
4bit 0Driver Com. Failurebit 4Speed Pulse Lost
bit 1First Damage Limitbit 5Overspeed 2
bit 2Second Damage Limitbit 6Overspeed 3
bit 3START NOT ALLOWEDbit 7M_Temp Sensor Lost
5bit 0TMS Lower tempbit 4Tuning Error 1
bit 1AMB Com. Failurebit 5Tuning Error 2
bit 2PCB->DSP Com Failbit 6Tuning Error 3
bit 3TMS Sensor Lostbit 7Tuning Error 4
6bit 0Tuning Error 5bit 4Imbalance X_B
bit 1ATMP Failurebit 5Imbalance Z
bit 2RTMP Failurebit 6Tuning Error 6
bit 3Imbalance X_Hbit 7Tuning Error 7
7bit 0Tuning Error 8bit 4Motor Resistor Lost
bit 1Tuning Error 9bit 5Driver PWM Trouble
bit 2Driver Failurebit 6Driver FAN Failure
bit 3R-Unit Failurebit 7Driver CPU Error
8bit 0R-Unit Com. Failurebit 4Pump Record Failure
bit 1Amp Overcurrentbit 5PCB Record Failure
bit 2DSP Initialize Failbit 6Tuning Error 10
bit 3Accel Malfunctionb it 7Tuning Error 11
bit 1Tuning Error 13bit 5Tuning Error 17
bit 2Tuning Error 14bit 6Tuning Error 18
bit 3Tuning Error 15bit 7Tuning Error 19
10bit 0Aberrant Brakebit 4Inordinate Current
bit 1Aberrant Accelbit 5FAN trouble
bit 2TMS Voltage Mismatchbit 6Serial Com. Fail
bit 3Insufficient Supplybit 7Reserved
11 to 16All bits reserved
Unlike the warning flags these are treated as 16 separate bytes so byte 1 is transmitted first.
4.7.5Module 05 - Pump Speed
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 2 bytes are a 16-bit unsigned number which is the pump speed in Hz.
4.7.6Module 06 - Motor Current
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 1 byte which is the motor current in tenths of an Amp. For example, 0xFF represents 25.5A.
4.7.7Module 07 - Motor Temperature
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 2 bytes are a 16-bit signed number which is the motor temperature in °C.
4.7.8Module 08 - Control Unit Temperature
Applicability: SCU-800/1500 and 1600 only. SCU-750 and SCU-1 400 will reject this module.
Output bytes: None
Input bytes: 2 bytes are a 16-bit signed number which is the control unit temperature in °C.
4.7.9Module 09 - Supervisor software version
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 16 bytes are 16 ASCII characters i.e. an ASCII text string. For example, should start with characters
‘56’ for P056 (SCU-750) or ‘59’ for P059 (SCU-1500).
Edwards and the Edwards logo are trademarks of Edwards Limited.
D397-51-880 Issue E
4.7.10Module 10 - Motor Drive software version
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 4 bytes are 4 ASCII characters i.e. an ASCII text string.
4.7.11Module 11 - Active Magnetic Bearing software version
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 4 bytes are 4 ASCII characters i.e. an ASCII text string.
4.7.12Module 12 - Profibus software version
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 2 bytes are 2 ASCII characters. The first character represents software type, which can be a
number or a letter. The second character is the revision letter.
OPERATION
4.7.13Module 13 - Pump Serial Number
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 10 bytes are 10 ASCII characters.
4.7.14Module 14 - Control Unit Serial Number
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 10 bytes are 10 ASCII characters.
4.7.15Module 15 - Pump Run Time
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 4 bytes form a 32-bit unsigned number which is the pump running counter in minutes.
4.7.16Module 16 - Control Unit Run Time
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 4 bytes form a 32-bit unsigned number which is the pump running counter in minutes.
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 2 bytes form a 16-bit unsigned number which is the pump damage limit counter.
4.7.18Module 18 - Speed Setpoint
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 2 bytes form a 16-bit unsigned number which is the speed setpoint in Hz.
This module also allows the speed setpoint to be chan ge d through th e parameterisation process. The selected value
for setpoint will be written to the pump prior to Data Exchange if this module is selected for Data Exchange.
There are 4 bytes of parameterisation data. The first 2 bytes are a 26-bit number which must always be 18
i.e. 0x00, 0x12. The 3rd and 4th bytes form a 16-bit unsigned number which is the speed setpoint in Hz. The allowable
range for the Profibus Module is 100 Hz (6,000 rpm) to 1000 Hz (60,000 rpm) with a default value of 1000 Hz
(60,000 rpm). However, this range may not be acceptable to all combinations of pumps and control units.
Note:If the demand speed setpoint is greater than maximum allowed by the pump and control unit combination
then the setpoint will be set to the maximum allowed. Similarly if the demanded speed setpoint is less than
minimum allowed by the pump and control unit combination then the setpoint will be set to the minimum
allowed.
4.7.19Module 19 - Xh Vibration
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 2 bytes form a 16-bit unsigned number which is the Xh vibration in µm.
4.7.20Module 20 - Xb Vibration
Applicability: All control units covered by this manual.
Output bytes: None
Input bytes: 2 bytes form a 16-bit unsigned number which is the Xb vibration in µm.
4.7.21Module 21 - Z Vibration
Applicability: SCU-800 and 1600 only. SCU-750/1400/1500 will reject this module.
For STP-iX455 control unit - this module can be configured but data will always be zero as function
not used by control unit.
Output bytes: None
Input bytes: 2 bytes for a 16-bit unsigned number which is the axial vibration in µm.
Edwards and the Edwards logo are trademarks of Edwards Limited.
D397-51-880 Issue E
CAUTION
4.7.22Module 22 - Speed Demand
Applicability: All control units covered by this manual.
Output bytes: 2 bytes form a 16-bit unsigned number which is the speed setpoint in Hz (decimal).
Input bytes: 2 bytes form a 16-bit unsigned number which is the speed setpoint in Hz (decimal).
This module allows speed setpoint to be changed (and read) during data exchange, unlike module 18 which writes
setpoint only during pa rameterisati on (at the start of Data Exchange). Setpoint is written to control unit only at start
of data exchange and on change of value.
Setpoint is written to control unit EEPROM. To avoid early control unit failure this value should not be changed
more than twice per hour on average.
The maximum and minimum values allowe d for set poin t depend on pump type - refer to pump manual for allowable
value range. If setpoint demand value is greater t han pump’s m aximum the setpoint will b e set to maximu m allowed
for that pump. Similarly if setpoint demand value is less than pump’s minimum the setpoint will be set to minimum
allowed for that pump.
Edwards and the Edwards logo are trademarks of Edwards Limited.
D397-51-880 Issue E
WARNING
6STORAGE AND DISPOSAL
6.1Storage
Store the module in clean dry conditions until required. When required for use, install the module as described in
Section 3.
6.2Disposal
Dispose of the module and any components safely in accordance with all local and national safety and environmental
requirements.
Alternatively, you may be able to recycle the module and/or cables; contact Edwards or your supplier for advice (also
see below).
The module and associated cables are within the scope of the European Directive on Waste Electrical and Electronic
Equipment, 2002/96/EC. Edw ards of fe r Euro pe an custo me rs a recyclin g servi ce for th e mod ule/ cable s at the e nd of
the product’s life. Edwards' Registration Number as a UK producer of electrical and electronic products is
WEE/BF0054TQ. Contact Edwards for advice on how to return the module/cables for recycling.
STORAGE AND DISPOSAL
Do not incinerate the module. If the module is heated to very high temperatures, dangerous gases
may be emitted and internal components may explode.
Edwards products, spares and accessories are available from Edwards companies in Belgium, Brazil, China, France,
Germany, Israel, Italy, Japan, Korea, Singapore, United Kingdom, U.S.A. and a world-wide network of distributors.
The majority of these centres employ Service Engineers who have undergone comprehensive Edwards training
courses.
Order spare parts and accesso ries f rom the n eares t Edwar ds compa ny or distrib utor. Wh en orde ring, stat e for e ach
part required:
Model and Item Number of the equipment
Serial number
Item Number and description of the part.