Tyco BIFFI EHAS Series Installation Instructions And Maintenance Manual

EHAS (OLGAS-M 35-2000-100-OP)

ELECTRO-HYDRAULIC ACTUATOR

with

INTEGRAL ELECTRONIC POSITION CONTROL

INSTALLATION INSTRUCTIONS AND

MAINTENANCE HANDBOOK

MDE 142E

CUSTOMER

Tyco Hong Kong

ORDER

0235155/BB3606

VALVE MAKER

Vanessa srl

VALVE SIZE

32”/150

ACTUATOR MAKER

Biffi italia

ACKNOWLEDGE

02/3063/GKF

END USER

ANSHAN STEEL WORK

ENGINEERING

tba

!@ç$ flow control

BIFFI ITALIA s.r.l. - Loc. Caselle S. Pietro - 29017 Fiorenzuola d’Arda -Piacenza - ITALY -

Tel. (0523) 944411 - Fax (0523) 941885 - e_mail: [email protected]

MDE142E0 2/60 06/04/04

INDEX

1. FOREWARD 6

2. ACTUATOR FUNCTIONAL DESCRIPTION 7

3. SYSTEM OPERATING PRINCIPLE 10

4. CONTROL SYSTEM FUNCTIONING 11

4.1. Control function 11

4.1.1. Position regulator and speed control 11

4.2. General function 12

4.2.1. Selection between turn clockwise to close or anti-clockwise to close 12

4.2.2. Stroke limit electronic setting 12

4.2.3. Open loop operation 12

4.2.4. Direct / Reverse action 12

4.2.5. Position failure (Jammed) 12

4.2.6. Opening high speed operation 12

4.2.7. ESD operation 12

4.2.8. Internal temperature monitoring 12

4.2.9. Accumulator nitrogen leakage 12

4.2.10. Motor/pump control 13

4.2.11. Language selection 13

4.2.12. Maintenance instruction 13

5. REMOTE CONNECTIONS 14

5.1. Analogue input / output 14

5.1.1. Position signal request (input) 14

5.1.2. Process valve position signal (output) 14

5.1.3. Oil level transmitter (output) 14

5.1.4. Oil pressure transmitter (output) 14

5.1.5. Oil temperature transmitter (output) 14

5.2. Digital input / output 14

5.2.1. ESD control (input) 14

5.2.2. Monitor relay (output) 14

5.2.3. Auxiliary relays (output) 14

6. LOCAL OPERATOR INTERFACE 15

6.1. Local operator interface features 16

6.2. Variables, alarms and warnings visualisation 18

6.3. Configuration options 19

6.3.1. Actuator set-up 19

6.3.2. Name plate 19

6.3.3. Valve data 19

6.3.4. Maintenance 19

6.4. Entering the view mode 20

6.5. Entering the set-up mode 20

6.6. Exit from view and set-up mode 20

7. SET-UP MENU 22

8. VIEW MENU 24

9. SET-UP ROUTINES 26

9.1. Stroke limits 26

9.2. Purge 26

9.3. Positioner 27

9.4. ESD Control 27

9.5. Local control 28

9.6. OUTPUT Relays 28

9.6.1. Monitor relay 28

9.6.2. Auxiliary output relays 28

9.7. Fail safe 29

MDE142E0 3/60 06/04/04

9.8. Output 4-20 mA 30

9.9. Interlock 30

9.10. Miscellaneous 30

9.10.1. Time and date 30

9.10.2. Factory setting 31

9.10.3. Pump 31

9.10.4. Valve jammed (time) 31

9.10.5. Vem calib. 32

9.11. VALVE DATA ROUTINES 33

9.11.1. Tag name 33

9.11.2. Serial number 33

9.12. MAINTENANCE ROUTINES 33

9.12.1. Set password 33

9.12.2. Clear alarm log 33

9.12.3. Clear recent data log 34

9.12.4. Set maintenance date 34

9.13. Example of set-up routine (Local Control) 35

10.VIEW ROUTINES 36

10.1. Actuator set-up routines 36

10.2. Name plate routines 36

10.3. Valve data routines 36

10.4. Maintenance routines 37

10.5. Example of view routine 38

11.FACTORY TEST CONFIGURATION 39

11.1. Actuator set-up menu 39

11.2. Name plate menu 40

11.3. Valve data menu 40

11.4. Maintenance menu 40

12.EHAS SYSTEM DATA 41

12.1. Working condition 41

12.2. System performances 41

12.3. Electrical and hydraulic features 41

12.4. Hydraulic oil characteristics 41

12.5. Valve torque requirement 41

12.6. Actuator performances 41

13.INSTALLATION INSTRUCTIONS 42

13.1. Assembling the actuator on the valve 42

13.2. Setting of the mechanical stroke limits 43

13.3. Instruction for start up 43

13.3.1. Hydraulic controls 43

13.3.2. Electric connections 43

13.3.3. Start up 45

13.3.4. Purge operation 45

14.MAINTENANCE 46

14.1. Standard maintenance 46

14.2. Special maintenance 46

15.TROUBLE-SHOOTING 46

15.1. The display is off when the actuator is powered 46

15.2. The electronic control logic works but there is an alarm 47

16.MAIN COMPONENT PART LIST TABLE 49

16.1. Control cabinet 50

16.2. Hydraulic cylinder /quick exhaust valve 51

16.3. Actuator spring cartridge) 52

MDE142E0 4/60 06/04/04

16.4. Actuator scotch yoke mechanism 53

16.5. Position transmitter and limit switch assembly 54

16.6. Hydraulic Control Unit (HCU) 55

16.7. Motor Control Unit (MCU) 56

17.OPERATING DIAGRAM 57

17.1. Hydraulic operating diagram SLASDOO2 57

17.2. Wiring diagram SE 89B-173A/B 58

MDE142E0 5/60 06/04/04

NOTES:

.................................................................................................................................................................

…………………………………………………………………………………………………………..

REVISION LIST

0 18/10/2002 Issue document R.Z A.A.

Rev. Date Description Prepared Approved

MDE142E0 6/60 06/04/04

1. FOREWARD

The EHAS are Electro-Hydraulic Linear Actuator series fitted with a new electronic units used to control

the position of modulating linear valves in accordance with an external signal called ‘’position

request’’.(REQ)

The actuators system is consisting of an electro-hydraulic power unit (HPU) which generates the

hydraulic pressure to fill an hydraulic accumulator (HA) in order to control, by means a microprocessor

unit (MCU) and a solenoid valve control unit (HCU), the position of an hydraulic cylinder (HLA)

connected by a suitable pedestal to a modulating valves (MV).

The units are provided with display and non intrusive push-buttons/selector to allow local actuator

control, configuration and diagnosis operations. A powerful, memory resident, diagnostic function

monitor the correct operation of the actuator and generates an alarm when failure occurs.

HPU

Hydraulic Power Unit

HCU

solenoid valve control unit

MCU

Microprocessor Control Unit

OLGAS

Hydraulic Spring return

Actuator

MV

Modulating Valve

PT

Position Transmitter

Valve position request (REQ)

Electric supply

Valve position (FB)

EHAS

push-buttondisplay

Hydraulic HA Accumulator

MDE142E0 7/60 06/04/04

2. ACTUATOR FUNCTIONAL DESCRIPTION

The EHAS actuators are equipped with the following main components:

1. Oil pressure transmitter

2. Oil temperature transmitter

3. Oil level transmitter

4. High pressure filter with clogging indicator junction box

5. Oil reservoir

6. Hydraulic accumulator

7. Quick opening piloted valve

8. Transmitter terminal block enclosure

9. HCU Hydraulic solenoid valves Control Unit

10. Hydraulic power unit electric motor

11. MCU local interface operator with pushbutton/selector and display

12. Hydraulic power unit pump

13. Hydraulic suction filter

14. Actuator position transmitter/limit switches enclosure

15. MCU Microprocessor Control Unit with terminal block enclosure

16. Hydraulic power unit cabinet

MDE142E0 8/60 06/04/04

The actuator functional description is referred to the simplified schematic reported here under:

The electric motor (956) drives the pump (542) which send the pressurised oil, through the filter (361), to

the hydraulic accumulator (34). When the pressure value reaches the set point value of the logic valve

(395A), the discharge valve (998B) opens and the oil flow back the reservoir (555), at very low pressure

value.

When the pressure value, due to the actuator movement, slow down at the logic valve lower set point, the

discharge valve closes and the oil is send again to the hydraulic accumulator.

The movement and the direction of the motion occurs by controlling the oil pressure value of the cylinder

chamber of the OLGAS ACTUATOR.

The speed of operation is controlled by the MCU (954) in function of the difference (ERROR) between

the actuator position signal EPT (41), called feed-back (FB) and the position request signal (REQ) as

described on par.4.2.1.

MDE142E0 9/60 06/04/04

a) Opening operation

When the request signal requires to move the valve in opening direction (see Direct/Reverse action on

par. 4.2.2) the MCU energise the solenoid valve (401B), which opens and reduces the cylinder chamber

pressure value until the spring force start to move towards opening direction.

b) Closing operation

When the request signal requires to move the valve in closing direction (see Direct/Reverse action on par.

4.2.2) the (MCU) energise the solenoid valve (401A) which opens allowing the oil flows from the

accumulator to the cylinder chamber, the pressure value in this chamber increases and the piston force

compress the spring and moves the actuator towards closing direction.

c) Stop in position

When, during the movement, the position of the actuator approaches the requested position, the MCU

adjust the pressure in the cylinder chambers to minimise the speed of operation.

As soon as the position of the actuator reaches the range of permitted error (DEAD BAND), the MCU de-

engines all solenoid valves causing the actuator to stop.

d) Opening high speed operation

When the 4-20 mA signal (REQ) change from low to higher value with a variation speed higher than 32

mA/sec, the MCU energise the solenoid valve (399) which allows that the pilot valve (998B) opens

discharging quickly the cylinder chamber pressure. In this condition the actuator speed reaches a speed of

180°/sec (equal to 0,5 sec from fully close to fully open position).

e) ESD operation

When a dry contact in the control room is opens (ESD) the MCU ignore the 4-20 mA signal (REQ) and

moves the actuator to the open position with a speed of 13-15°/sec (equal to 6-7 sec from fully close to

fully open position).

MDE142E0 10/60 06/04/04

3. SYSTEM OPERATING PRINCIPLE

The MCU drives the HCU solenoid valves and positions the valve in accordance with an external signal

called ‘’position request (REQ)’’. The function is performed by the continuous comparison of the ‘’valve

position (FB)’’ and (REQ) signals: if they are different the solenoid valves are driven so as to move the

actuator to the position indicated by the position request signal.

The following figure represents the block diagram of the positioning system.

The modulating operation is performed as follows:

⇒ -if the (REQ) signal decreases in comparison with the ‘’present valve position’’ signal, the position

regulator generates the voltage (see paragraph 4.2.1) that, through a power module, will power the

coil of the proportional solenoid valve, in close direction, to decrease the position and close the valve.

⇒ - if the (REQ) signal increases in comparison with the ‘’present valve position’’ signal, the position

regulator generates the voltage that, through a power module, will power the coil of the proportional

solenoid valve, in open direction, to increase the position and open the valve.

⇒ if the “ position request variation ” is greater than 32 mA/sec., the high speed solenoid valve is

energised to open the valve in a short time.

⇒ When a dry contact in the control room is opens (ESD) the MCU cut-off the 4-20 mA signal (REQ)

and moves the actuator to the open position with an established speed (equal to 6-7 sec from fully

close to fully open position).

When the (ESD) contact is restored, the control returns to the (REQ).

⇒ If the (REQ) signal do not change for 15 minutes the MCU stop the motor. The motor will restart as

soon as the (REQ) signal change or when the accumulator pressure slow down to the minimum and

the pressure switch (PS) change over its contact.

⇒ a pressure switch monitors the hydraulic pressure and generates an alarm if the pressure do not

increases within an established time

⇒ in case of loss of 3ph 380 V power supply the actuator remains in service until the hydraulic pressure

is available

⇒ in case of UPS supply failure the actuator remains in stay-put.

High speed

control

HPU control

ESD CONTROL

open

close

Valve

position

signal (FB)

POSITION LOOP

PS

Pressure Switch

PT

Position Transmitter

HCU

Proportional solenoid

valves

OLGAS

Spring return Hydraulic

Actuator

MCU

Microprocessor

Electronic Control

Position request (REQ)

Power supply 3ph 380 V

PIPELINE

MODULATING

VALVE

POSITION RE-TRANSMISSION

AUTOMATIC NOT AVAILABLE

OR WARNING

HPU

Hydraulic Power Unit

EHAS BLOCK DIAGRAM

High speed

solenoid valve

END of TRAVEL CONTACTS

Supply from UPS 230 V

MDE142E0 11/60 06/04/04

4. CONTROL SYSTEM FUNCTIONING

4.1. Control function

The functioning of the control system can be described by referring to the block diagrams represented on the

following pages.

Every block represents a function relevant to pressure and position control of the actuator. The function of each

block is detailed as follows:

4.1.1. Position regulator and speed control

The new requested valve position value, is compared (actuator position loop) with the present valve position

(FB). The difference between the two values (position error) is processed by the position regulator which sends

an opening request signal to the proportional valve positioner. The request signal value is used to generate a

variable voltage to open accordingly the proportional valves in order to move the valve process to the correct new

position at variable speed operation.

The voltage generated by the proportional valve positioner and

applied to the coils, is proportional to the position error, it means

that the spool position and then the oil flow and actuator speed,

change in function of the applied voltage. The greater is the position

error, the greater is the actuator speed and vice-versa.

The opening value of the proportional valves are verified

(proportional valve position loop) with the real value continuously

through the position transmitter (PPT).

The regulator utilises a P (proportional) algorithm and its Control

band is adjustable independently for both directions of operation.

Furthermore two speed gains (k and k2) allows to establish the

suitable speed operation. Dead band, and Max speed, can also be

adjusted. The sign of the position error represents the direction

where the valve should move and it is used to select the coil of

solenoid valve that should be powered.

When the position error is greater than the pre-set position control band, the coils of the solenoid valves are

powered by the maximum voltage. When the position error is below the pre-set position control band value, the

coils of the solenoid valves are powered by a voltage proportional to the position error. When the position error is

smaller than the pre-set dead band value, the voltage applied to the coils of the solenoid valves is zero and the

actuator remains in the present position.

proportional

control band (P) (%)

dead band

position error %

0 %

max. speed

Actuator

speed

Speed / position error relation

k2

k

OPEN LOOP

CONTROLS

Internal

POSITION

REQUEST

(REQ)

ACTUATOR

FUNCTIONS

CONTROL

LOOP

CONTRO

L

POWER

SUPPLY

OUTPUT

RELAYS

DISPLAY

and LED’s

SOLID STATE

POWER

SWITCHES

POSITION

REGULATOR

VALVE

POSITION

(FB)

+

-

3-ph MAIN

POWER

SUPPLY

HCU

Proportional

solenoid valve

Motor control

PS

Pressure

Switch

PT

Position

Transmitter

POSITION LOOP

Motor

thermostat

MCU

BLOCK DIAGRAM

Output

contacts

LOCAL

OPERATOR

INTERFAC

E

LOC/OFF/REM

OPEN

CLOSE

LOCAL

SETTING

OUTPUT

4-20mA

Position re-

transmission

RS232

serial port

INPUT

4-20mA

Position

request

input

ESD

input

OPTO-

COUPLED

INPUT

High speed

solenoid

valve

UPS supply

230 V

SOLENOID VALVE LOOP

PPT

Proportional

valve trans.

MDE142E0 12/60 06/04/04

4.2. General function

4.2.1. Selection between turn clockwise to close or anti-clockwise to close

Via local operator interface it is possible to select between the following: “actuator turn CLOCKWISE or stem OUT

for linear actuator, (CW/OUT) to close” or “actuator turn counter clockwise or stem IN for linear actuator

(CCW/IN) to close”.

4.2.2. Stroke limit electronic setting

The stroke limits of the hydraulic linear actuator are performed by means of the local interface operator (see relevant

paragraph). This operation must be done after the mechanical setting.

4.2.3. Open loop operation

A local 3 position selector switch (Local/Off/Remote), of the local operator interface, permits the opening of the

position control loop and the direct control of the actuator through local Open/Close/Stop commands (MANUAL

mode). The STOP command is always available , both in LOCAL and ins REMOTE

4.2.4. Direct / Reverse action

The configurable Direct/Reverse action parameter, allows to choose the action of the position regulator in function

of the position request signal.

If direct action was configured, the 4 mA position request signal corresponds to closing request and the 20 mA

corresponds to opening request.

Vice versa if reverse action was configured, the 4 mA signal requires opening and the 20 mA requires closing.

The Direct / Reverse parameter does not affect the 4-20 mA position re-transmission signal. In fact, 4 mA

corresponds always to closed position and 20 mA to open position.

4.2.5. Position failure (Jammed)

If the error of position (difference between ‘’present position’’ and ‘’internal position request’’) is greater than

4 %, but the position value does not change within a configurable time, an automatic cut-off of the control circuit

occurs and an alarm is set. The time can be configured at a value from 1 to 250 sec. The control is active when the

MCU works in REMOTE (AUTO).

4.2.6. Opening high speed operation

When the 4-20 mA signal (REQ) change from low to higher value with a variation speed higher than 32 mA/sec (for

minimum 3,2 mA) , the MCU energise a third solenoid valve which allows that the pilot valve opens, discharging

quickly the cylinder chamber pressure. In this condition the actuator speed reaches a speed of 180°/sec. As soon as

the actuator position reaches 90% opening, the high speed solenoid valve is de-energised, the operating speed slow

down and the movement is controlled by the positioner solenoid valve until the new requested position.

4.2.7. ESD operation

When a dry contact, in the control room, opens (see option D1 of the SE89B-173A terminals C4-C1) the actuator, is

configured to override any existing command and drives the valve to the fully open in 6-7 sec

4.2.8. Internal temperature monitoring

The system are designed to work from -30° C to 60 °C.

If the internal temperature is greater than 80°C or lower then -35°C, a warning is set.

If the internal temperature is greater than 90°C or lower then -40°C, an alarm is set. .

4.2.9. Accumulator nitrogen leakage

The actuator is provided with a pressure switch that contact opens when the hydraulic pressure drop down to an

adjustable pressure threshold. The pressure threshold should be set at least 5 bars below the minimum pressure fixed

by the “adjustable relief valve” (see par. 5.3).

The pressure switch contact is read by the MCU that switches on the hydraulic pump electrical motor. When the

pressure is increased of about 10 bars the pressure switch contact closes.

The MCU measures the time between the opening and the closing of the pressure switch contact .

If the time is 50% lower than the variable “N2 REF TIME ” a “ LOW N2 “ warning, is send to advise that the

Nitrogen leakage ( N2 ) is occurred.

The measure is performed only if the local selector is in REMOTE, the hydraulic pump motor is “on” and the

position request signal (REQ)remains constant.

MDE142E0 13/60 06/04/04

The measure is not done during the first cycle after the power-up, or if the position request signal changes during the

measuring time.

The above warning condition is signalled only by the red LED (alarm/warning) located on the local operator

interface.

4.2.10. Motor/pump control

The motor of the hydraulic pump is controlled by the MCU. The following operating mode can be configured via

local operator interface:

1) OFF: electrical motor always off

2) ON: electrical motor always on

3) AUTO: - in LOCAL the electrical motor is always running

- in OFF the power of the electrical motor is switched off in 30 sec. It is switched on when the local selector is

moved to LOCAL or REMOTE

- in REMOTE the electrical motor switches off, if the variation of the position request signal is less than 0.5%

for 15 min. It is switched on if the position request signal changes or if the pressure switch contact opens

If the pressure switch is still open after 10 min. from the start of the motor pump, an alarm is generated

(HYDRAULIC PUMP)

4.2.11. Language selection

To visualise the messages of the display the operator can choose between two available languages (Italian and

English).

4.2.12. Maintenance instruction

A large amount of data is stored in the MCU memory and it is available for future analysis or to assist the operator

in the maintenance program. The maintenance menu includes the set password routine, to read the maintenance date

operation, to clear recent data log and to set the next maintenance date.

MDE142E0 14/60 06/04/04

5. REMOTE CONNECTIONS

The EHAS system are provided of digital and analogue input / output, available from the terminal board, suitable for

the remote control as described in the following:

5.1. Analogue input / output

5.1.1. Position signal request (input)

The position request signal must be 4-20 mA, coming from an external generator or process controller. Impedance

250 Ω. The input is provided of a galvanic insulation. The connection must be done by a screened cable.

Note: when the position request signal increases with a variation higher than 32 mA/sec the MCU controls the

opening high speed operation as described on par.2.

5.1.2. Process valve position signal (output)

The process valve position signal, internally generate by the MCU, is available also in case of electric supply failure,

but with the external 24 Vdc, 400 mA supply active.

The output signal is 4-20 mA, internally provided with galvanic insulation. The connection must be done by a

screened cable.

5.1.3. Oil level transmitter (output)

One oil level transmitter allow to check continuously at a distance the level of the hydraulic oil in the reservoir. The

transmitter has a chain of red sensors with 10 mm apart, connected wit an electronic reading device which gives a

linear and continuous 4-20 mA output signal. The connection must be done by a screened cable.

5.1.4. Oil pressure transmitter (output)

One oil pressure transmitter allow to check continuously at a distance the pressure value of the hydraulic accumulator.

The transmitter, piezoresistive type has a range of 250 barg and an output signal of 4-20 mA.The connection must be

done by a screened cable.

5.1.5. Oil temperature transmitter (output)

One oil temperature transmitter allow to check continuously at a distance the temperature of the hydraulic oil the The

transmitter is connected with an RTD sensor PT100 type, has a range of 0 to 100° C, and an output signal of 4-20 mA.

The connection must be done by a screened cable.

5.2. Digital input / output

5.2.1. ESD control (input)

An ESD (Emergency Shut Down) signal can be connected to the actuator to override any existing command (see ESD

SETUP) and to drive the actuator / process valve in a predetermined position (move to open, move to close, move to

% and stay in place), at a programmable speed operation.

The ESD command is opto-coupled. The circuits associated to the input can be supplied by an external 20-125Vdc or

20-120Vac (50/60Hz).

The signal level are the following:

Ø minimum ON signal >20Vdc/Vac

Ø maximum ON signal < 125Vdc or 120Vac

Ø maximum OFF signal < 3Vdc/Vac

Ø current drawn from ESD controls < 15mA.

5.2.2. Monitor relay (output)

A voltage free change over contacts of the monitor relay are available. It indicates that there is a problem or condition,

into the DHAP system, which prevents the automatic control of the process.

The conditions that cause the switch over of the relay are listed in the relevant paragraph.

Contact rating: max voltage 250Vac/30Vdc; max. current 5A

min voltage 5Vdc; min current 5mA.

5.2.3. Auxiliary relays (output)

The voltage free contacts of 5 latching relays are available. The status (make or break) and the conditions that cause

the switching of the relay can be viewed and configured by using the “VIEW and SET-UP” features. The status of the

latching relays is immediately updated as the associated conditions to change occur. Moreover, the status of the above

contacts are cyclically updated

MDE142E0 15/60 06/04/04

Contact rating: max voltage 250Vac/30Vdc; max. current 5A

min voltage 5Vdc; min current 5mA.

6. LOCAL OPERATOR INTERFACE

The following functions are available by the MCU local operator interface:

Ø actuator control

Ø system configuration

Ø system status visualisation

The below figure describes the function of each component of the local operator interface.

MDE142E0 16/60 06/04/04

6.1. Local operator interface features

Numeric display to indicate the present

process valve position

in % of the opening

Three LED’s to indicate the actuator status

according to the following logic:

• green ON/ red OFF: the actuator is stopped

in open position

• green OFF/ red ON: the actuator is stopped

in closed position

• green OFF/ red flashing: the actuator is

running in closing direction

• green flashing/ red OFF: the actuator is

running in opening direction

• green ON/ red ON: the actuator is stopped

in intermediate position

• yellow ON: alarm

• yellow flashing: warning

Local controls: OPEN/YES, CLOSE/NO, and

STOP push buttons.

The STOP push-button resets any existing

command and it is active both in local and in

remote.

If the 3-position selector is in LOCAL, the

OPEN / YES, and CLOSE /NO push buttons

work as

OPEN and CLOSE commands.

If the 3-position selector is in REMOTE or in

OFF, the OPEN / YES and CLOSE / NO

push-

buttons work as YES and NO to answer at the

prompt (next? OK? view?, change? exit?) of the

alphanumeric display.

In OFF, the OPEN / YES and CLOSE / NO push

buttons allow to move in the menu, to view and

change actuator configuration or to scroll the list

of variables, status, and alarms.

In REMOTE, the above push buttons allow

scrolling the list of variables, status, and alarms,

but viewing or changing actuator configuration

cannot be made.

Alphanumeric display: during normal operation the

alphanumeric display shows the present status (NORMAL,

ESD ON, ALARM, WARNING), the 3-position selector status

(LOCAL, OFF, REMOTE), the position request signal (R

xx,x%) and the actuator action (OPEN, OPENING, CLOSED,

CLOSING, STOP). If the local selector is in OFF or

REMOTE, pressing the YES push-button it is possible to

scroll the below list of variables and alarms:

• main voltage supply

• temperature inside the actuator enclosure

• time

• date

• alarm list

• warning list

The warning condition occurs when a variable reaches a

critical value and/or a maintenance action is required, but the

actuator control functions are still available. The alarm

condition occurs when a variable is out of the acceptable range

and the actuator control functions are not available

The alarm and warning lists contain the present alarms and

warnings

. When the fault condition disappears, also the

corresponding alarm or warning disappears from the list. A

reset routine is provided to clear the type of alarm / warning

that are memorised (jammed valve, etc.).

3-position selector to set the following operation modes:

• LOCAL: for local control only

• OFF: no control is active but the actuator is still

connected to the mains

• REMOTE: for regulating service only

CLOSE

STOP

OPEN

MDE142E0 17/60 06/04/04

The following drawing shows the use of the OPEN / YES, CLOSE / NO and STOP push buttons in function of the

local selector position.

Press

YES and STOP

simultaneously

to enter VIEW and

SETUP menus

only OPEN,

CLOSE and STOP

controls available

ALPHANUMERIC

DISPLAY

Press

YES

to answer at the

prompt ( cont?)

Place the

3-position selector in

LOCAL or press YES

and NO simultaneously to

exit from VIEW and

SETUP MENUS

to

VIEW

and

SETUP

MENUS

VIEW and SETUP MENUS

NORMAL LOCAL

R 37,5 %

37.5 %

NORMAL OFF

R 37,5 %

next ?

37.5 %

NORMAL REMOTE

R 37,5 %

37.5 %

=

OPEN / YES push-button

= CLOSE / NO push-button

= STOP push-button

LOCAL OFF REMOTE

VARIABLE,

ALARM

and

WARNING

LISTS

Press

NO

to return to

NORMAL OFF / REMOTE

Actuator control

MDE142E0 18/60 06/04/04

6.2. Variables, alarms and warnings visualisation

The following drawing shows the use of the OPEN/YES, CLOSE/NO and selector to visualise the VARIABLE,

LIST OF AVAILABLE ALARMS LIST OF AVAILABLE WARNINGS

CONFIGURATION (configuration error) THERMOSTAT (motor over temperature)

INT.TEMPERATURE (internal temperature out of the limits) INT.TEMPERATURE (internal temperature near limits)

MAIN VOLTAGE (supply voltage out of the limits) MAIN VOLTAGE (supply voltage near limits)

HARDWARE (hardware error) PUMP STARTS (pump starts > 1,000,000)

POSITION SENSOR (feed-back failure) MAINTENANCE REQ (maintenance request)

JAMMED IN CL (jammed valve in closing) N2 REF TIME (accumulator Nitrogen pressure value too low)

JAMMED IN OP (jammed valve in opening) COMP. LEAKAGE (leakage on hydraulic components)

REQUEST SIGNAL (set-point failure) STROKE LIMITS (uncorrected stroke limits)

VEM1 SENSOR (VEM1 Hall sensor failure)

VEM2 SENSOR (VEM2 Hall sensor failure)

LOW PRESSURE (hydraulic pressure supply failure)

PUMP FAILURE (hydraulic pump failure)

NOTE: the alarm indication could be reset only after having removed the condition that causes the malfunctioning

(see relevant instructions on the table of the TROUBLE-SHOOTING paragraph.

YES

ALARM # 1

next?

................….

...............….

……………

ALARM # n next ?

RESET ALARM OK?

YES

WARNING # 1

next?

.................…….

................……..

WARNING # n next?

RESET WARNING OK?

YES

NO

3-POSITION SELECTOR

Press YES or NO to answer at

the prompt (OK?, view?, next?)

Variable and alarm list

NORMAL LOCAL

R 37,5 %

37.5 %

NORMAL OFF

R 37,5 % next

37.5 %

NORMAL REMOTE

R 37,5 % next

37.5 %

= pulsante OPEN / YES

= pulsante CLOSE / NO

POSITION ERROR

%

next?

VEM1/VEM2 POSITION. % / % next?

SUPPLY VOLTAGE. V-Hz next ?

INT. TEMPERATURE xx °C next ?

TIME hour/min/sec next ?

DATE day/month/year next ?

ALARMS none next ?

WARNINGS none next ?

YES

NO

YES

NO

LOCAL OFF REMOTE

YES

NO

=

OPEN / YES push-button

= CLOSE / NO push-button

= STOP push-button

MDE142E0 19/60 06/04/04

6.3. Configuration options

The DHAP system can be totally configured from the local interface by means of a series of menus that can be

selected from the alphanumeric display. The operator is guided through the different displays by answering YES or

NO at the appropriate prompt (change? OK?, view?, next?, etc.) present in the right corner of the lower row of the

alphanumeric display.

To access to menus: set the local selector in OFF and then simultaneously press OPEN/YES and STOP. The

alphanumeric display will now show the present language. Press YES if the language is OK, press NO to scroll the

list of available languages and then press YES to select.

After having chosen the language, the next step is the selection among view and set-up mode. Use view mode to

seethe actuator configuration, and use set-up mode to change the present configuration. Unauthorised entry to

the set-up mode is prevented by a 4 alphanumeric character password. The actuator is supplied by BIFFI with the

default password “ 0 0 0 0 “.

Once the correct password has been entered, the actuator parameters can be configured. There is also the opportunity

to change the present password to a new value by the “set password" routine in the maintenance menu. After having

entered the new password, the old one ceases to be valid, so it is important to record the password in a secure location

for future retrieval.

The configuration functions (view and set-up mode) are grouped in 4 main menus: Actuator set-up, Name plate

and Maintenance.

6.3.1. Actuator set-up

It includes the routines that allow the actuator to be configured according to the requested control mode and to the

valve that it is mounted on.

List of routines:

q stroke limits q ESD control q fail safe q miscellaneous

q purge q local controls q output 4-20mA q

q positioner q output relays q interlock q

6.3.2. Name plate

It includes a series of data to identify the actuator characteristic, service, and utilisation mode. The data are entered by

the actuator manufacturer and can only be viewed.

List of routines:

q serial number

q actuator type

q nominal thrust/torque

q supply voltage

q motor data

q test date

q wiring diagram

q Oil type

q HW / SW version

6.3.3. Valve data

It includes a series of data relevant to the valve. The valve manufacturer and end user should enter the data.

List of routines:

q tag name q serial number

6.3.4. Maintenance

It includes a large amount of information relevant to diagnostic and historic data to help the operator in case of failure

or in maintenance operations. Maintenance menu includes also the set password routine.

List of routines:

q set password

q clear alarm log

q clear operation log

q maintenance date

The parameters appear on the alphanumeric display in the same order both in view and set-up mode. At the end of

each routine the program automatically returns to the beginning of the routine, and the operator can choose to re-enter

by YES or to move to a next routine by NO.

MDE142E0 20/60 06/04/04

6.4. Entering the view mode

Before commissioning the actuator on the valve, the existing configuration should be checked. The parameters are

configured in factory, according to a standard setting or alternatively to customer requirements. In view mode, no

password is requested, but no change of parameters can be made.

• Ensure the electrical main power is applied.

• Move the 3-position selector to OFF and then press at the same time OPEN/YES and STOP.

• The display shows the present language. Press YES to confirm or press NO to scroll the list of available languages.

Press YES to select the new language.

• Press NO to scroll the list of available menus (ACTUATOR SET-UP, NAME PLATE, VALVE DATA,

MAINTENANCE) and then press YES to select the desired menu.

• Press NO to scroll the list of available routines and press YES to select the routine where the parameter to be

changed is located.

• Press NO to scroll the list of parameters and press YES to view the value.

6.5. Entering the set-up mode

To change the existing settings or to set the stroke limits it is necessary to enter the correct password before being able

to make changes.

• Ensure the electrical main power (or the external auxiliary supply) is applied.

• Move the 3-position selector to OFF and then press simultaneously OPEN/YES and STOP.

• The display shows the present language. Press YES to confirm or press NO to scroll the list of available languages.

Press YES to select and to confirm the chosen language.

• Press NO when the message is “VIEW MODE OK? ”. Press YES to answer at “ENTER PASSWORD OK?"

• Enter password. Enter one digit at a time. Press YES if digit is correct, press NO to scroll the list of available

characters and then press YES when the character is correct. Enter 4 digits. After having entered the last digit, the

microprocessor checks the password. If it is correct the messages “PASSWORD CORRECT” and then “SET-UP

MODE OK?” appear. Press YES.

• Press NO to scroll the list of available menus (ACTUATOR SET-UP, VALVE DATA, MAINTENANCE) and

press YES to select the desired menu

• Press YES to scroll the list of available routines and press YES to select the routine where the parameter to be

changed is located.

• Press YES and NO to answer at the prompt on the display and to change the parameter.

• If password is not correct the message “PASSWORD WRONG” appears and set-up mode will not available.

All settings are automatically saved to a non-volatile memory and retained also if the electrical power is removed

from the actuator.

All systems are configured, before being shipped, with a standard default setting unless alternatives have been

requested with the order. In case of difficulty encountered during commissioning, the default setting can be re-

installed by the appropriate function present in the routine ”miscellaneous” of the actuator set-up menu. The actuator

returns to its original type configuration and commissioning can begin again, adjusting the original configuration

with the factory test settings (see par.14).

6.6. Exit from view and set-up mode

The following conditions cause to exit from view and set-up mode:

• move the 3-position selector to LOCAL or REMOTE

• answer YES when the display asks “EXIT OK? ”

• press simultaneously YES and NO

• automatic exit after 5 minutes without any parameter change or view

• remove the electrical power from the unit

Tyco BIFFI EHAS Series, BIFFI OLGAS-M 35-2000-100-OP Installation Instructions And Maintenance Manual

Other documents