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9

5.   OPERATION AS A TIMER

When configured as a Timer the BA577E can
measure and display the elapsed time between
external events such as measuring and displaying
how long machinery is operating. The Timer can be
started and stopped by a remote sensor, or from the
front panel push buttons.

The addition of two optional factory fitted isolated
control outputs allows the Timer to control external
events such as opening a valve for a predetermined
time. Again the Timer can be started and stopped
by a remote sensor, or from the front panel push
buttons.

When controlling external events the

CYCLE

function

enables the BA577E Timer to be configured to
repeat the timing period up to 99 times with a
configurable delay between timed periods up to 100
hours or to repeat continuously.

The BA577E may be configured to

time-up

from

zero to the set time

5Et t

, or to

time-down

from the

set time to zero. The set time may be entered and
displayed in hours, minutes or seconds, or a
combination of units. Elapsed or remaining time is
continuously displayed and a separate display may
be activated to show the Timer set time

5Et t

.

Resetting the timer cycle can be accomplished via
the front panel push buttons or by a remote contact.

A grand total time is maintained which can be
viewed by operating the front panel push buttons. It
may be reset to zero from within the configuration
menu, or the instrument may be configured to allow
resetting from the front panel push buttons.

Fig 7 shows a simplified block diagram of the
BA577E when configured as a Timer. The input can
be configured to accept inputs from a wide variety of
sensors.

When the sensor requires energising to

detect it's state, such as a switch contact, open
collector or a two wire proximity detector, a link
connected between terminals 3 & 4 supplies power
to the sensor input.

The instrument can be supplied with the following
factory fitted accessories: 

Internally powered Backlight

Dual isolated Control Outputs

The two factory fitted solid state isolated control
outputs may be independently configured to close
and open at specified parts of the timer cycle, such
as when the timer starts or finishes.

5.1

Initialisation

Each time power is applied to a BA577E
initialisation is performed. After a short delay the
following display sequence occurs:

All segments of the display are activated

BA577E is ready to start functioning using
the configuration information stored in the
instrument's permanent memory.

Fig 7

BA577E block diagram with Timer
configuration.

Summary of Contents for BA577E

Page 1: ...Issue 4 3rd July 2018 BA577E One input General purpose Timer or Clock Issue 4...

Page 2: ...epeat timing cycle CYCLE5 5 5 12 Cycle function enable EnbL 5 5 13 Cycle count cycl cnt 5 5 14 Restart delay r5t dela 5 5 15 Adjusting the set time 5Et t and restart delay r5t dela from the display mo...

Page 3: ...8 4 8 Enable Control output 1 EnbL 8 4 9 On and off times oP 1 on 1 oP 1 off 1 oP 1 on 2 oP 1 off 2 8 4 10 Control output 2 Optional oP2 8 4 11 Enable control output 2 EnbL 8 4 12 On and off times oP2...

Page 4: ...s the basic circuit that is used for all BA577E Timer installations Clock installations are the same except that the input terminals 5 6 are not used For simplicity the optional control outputs are de...

Page 5: ...e circuit to prevent false triggering of the instrument Three levels of debounce protection are available See section 5 5 6 2 2 5 Voltage pulse input Two voltage pulse input ranges are independently s...

Page 6: ...ecommended panel cut out dimensions To achieve an IP66 seal between the instrument enclosure and the instrument panel the smaller tolerance aperture must be used Although the front of the BA577E has I...

Page 7: ...g clamps 3 4 Scale card The BA577E s units of measurement are shown on a printed scale card in a window at the right hand side of the display The scale card is mounted on a flexible strip that is inse...

Page 8: ...lay through which a scale card showing the units of time such as hours can be seen New instruments are fitted with a scale card showing the units of measurement specified when the instrument was order...

Page 9: ...plished via the front panel push buttons or by a remote contact A grand total time is maintained which can be viewed by operating the front panel push buttons It may be reset to zero from within the c...

Page 10: ...5 Shows in succession firmware version number instrument function elap5e and any output accessories that are fitted A Dual Control Outputs Access to configuration menu 5 3 Displays when configured as...

Page 11: ...t the end of the delay time automatically returns to Running Complete Entered automatically from Running when there are no more timing cycles to perform When the CYCLE5 function is enabled the timing...

Page 12: ...he instrument using the or push button to adjust the flashing digit and the push button to transfer control to the next digit If the correct code has been entered pressing will cause the first paramet...

Page 13: ...ContACt Switch contact Energise input by linking terminals 3 4 See section 5 5 5 dEbounCE Defines the level of debounce applied to the input to prevent false functioning dEFAuLt HEAVY LiGHt See sectio...

Page 14: ...display mode to 5Et t and r5t dela See section 5 5 15 Display Summary of function uP or dn Direction of count Defines whether the Timer times down from 5Et t to zero or times up from zero to the set...

Page 15: ...as control output 1 See section 5 5 26 Display Summary of function CLr Gtot Reset grand total to zero This function resets the grand total which represents the total Timer run time from within the con...

Page 16: ...s twice to return to the configuration menu or repeatedly press the or button until the required type of input is displayed and then press twice to return to the configuration menu One of following si...

Page 17: ...at start of each period 02 11 Current Number of cycles cycle requested not shown number when cycle is continuously repeated LabEL Exactly the same as 5td but timer status i e CYCLE or dELAY is shown p...

Page 18: ...18...

Page 19: ...19...

Page 20: ...o the next digit When set as required enter the selection and return to the cycl cnt prompt in the sub menu by operating the button 5 5 14 Restart delay r5t dela This sub function defines the time del...

Page 21: ...diately Continue When power is restored the Timer will continue from where it stopped without any manual intervention To check or change the function select P fail from the configuration menu and pres...

Page 22: ...ation example in section 6 2 of this manual illustrate the use of the control outputs Further examples can be found in Application Guide AG374 which is available on the BEKA website 5 5 22 Control out...

Page 23: ...select op1 dELA from the control output 1 sub menu and press which will reveal the existing delay time with one digit flashing The flashing digit can be adjusted using the or button and the button to...

Page 24: ...trol to the second digit which should be set to u When 5urE has been entered pressing the button will reset all the configuration functions and return the instrument to the display mode Note r5Et dEF...

Page 25: ...topped when the start button is operated Fig 11 Control of a solenioid valve The required instrument configuration for this example are shown below Function Display Setting Access code CodE 0000 Funct...

Page 26: ...configuration menu Incorrect security code That the correct security code is being used Contact BEKA if code is lost 7 2 Fault finding after commissioning ENSURE PLANT SAFETY BEFORE STARTING MAINTENAN...

Page 27: ...regularly checked Inspection frequency should be chosen to suit the environmental conditions 7 5 Guarantee Instruments which fail within the guarantee period should be returned to BEKA associates or o...

Page 28: ...ment s permanent memory Following initialisation the instrument will display a flashing display which is a request for the local time to be entered The clock will not start to function until a display...

Page 29: ...out this manual push buttons are shown as and and legends displayed by the Clock are shown in a seven segment font as they appear on the instrument e g di5PLAY and CodE Access to the configuration men...

Page 30: ...30...

Page 31: ...ntrol output 1 Optional Control output 1 can turn on output closed and off output open twice in each twenty four hour period This function contains five sub function EnbL Enables output 1 and defines...

Page 32: ...time is entered the Clock will display a flashing 00 00 00 or 00 00 for 24 hour formats or A12 00 00 or A12 00 for 12 hour formats To adjust the clock set time select 5Et from the configuration menu a...

Page 33: ...tered return to the configuration menu by pressing the button twice 8 4 10 Control output 2 Optional oP2 Control output 2 is an optional factory fitted output which can be configured to turn on output...

Page 34: ...m the display mode may be protected by a four digit alphanumeric security code which must be entered to gain access Default security code 0000 allows unrestricted access With ACCd displayed press to e...

Page 35: ...ill then change the instrument to a Clock and return the display to FunCtion in the configuration menu Step 3 Select display format Using the or button select di5PLAY in the configuration menu and pre...

Page 36: ...sed access to the configuration menu Using the or button select CodE from the configuration menu and press which will reveal 0000 with the first digit flashing This example requires the security code...

Page 37: ...ANCE If a BA577E fails after it has been functioning correctly as a Clock the following table may help to identify the cause of the failure Symptom Cause Check No display No power supply That there is...

Page 38: ...8 10 6 Customer comments BEKA is always pleased to receive comments from customers about our products and services All communications are acknowledged and whenever possible suggestions are implemented...

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