BEKA BA578E User manual

Issue: 4
3rd July 2018
BA578E
Two input
General purpose
Timer or Clock
Issue 4

2
1. DESCRIPTION
2. SYSTEM DESIGN
2.1 Power supply
2.2 Sensor input
2.2.1 Switch contact input
2.2.2 Open collector input
2.2.3 2-wire proximity detector input
2.2.4 Magnetic pick-off input
2.2.5 Voltage pulse input
2.3 Remote reset
2.4 Status output
2.5 Control outputs - optional
3. INSTALLATION
3.1 Location
3.2 EMC
3.3 Installation Procedure
3.4 Scale card
4. ACCESSORIES
4.1 Display backlight
4.2 Control outputs
4.3 Scale card
4.4 Tag information
5. OPERATION AS A TIMER
5.1 Initialisation
5.2 Controls when configured as a Timer
5.3 Displays when configured as a Timer
5.4 Timer structure
5.5 Configuration as a Timer
5.5.1 Accessing configuration functions
5.5.2 Summary of Timer configuration functions
5.5.3 Instrument function: FunCtion
5.5.4 Input A: inPut-A
5.5.5 Input type: inP .TYPE
5.5.6 Debounce: debounce
5.5.7 Input b: inPut-b
5.4.8 Lower display: di5P-2
5.5.9 Starting & stopping the Timer: 5tAr5toP
5.5.10 Units of display: unit5
5.5.11 Set time: 5Et t
5.5.12 Repeat timing cycle: CYCLE5
5.5.13 Cycle function enable: EnbL
5.5.14 Cycle count: cycl cnt
5.5.15 Restart delay: r5t dela
5.5.16 Adjusting the set time 5Et t from
the display mode: AC5Et t
5.5.17 Direction of count: uP or dn
5.5.18 Power fail: p-fail
5.5.19 Local reset: LoC rEt
5.5.20 Local total reset: rE5Et .enbl
5.5.21 Local grand total reset: Glr Gtot
5.5.22 External reset: e-r5et
5.5.23 Status output: 5tat
5.5.24 Status output enable: EnbL
5.5.25 Status output on at: 5tat on
5.5.26 Status output off at: 5tat oFF
5.5.27 Status on delay time: 5tatdELA
5.5.28 Control output 1: oP1
5.5.29 Control output enable: EnbL
5.5.30 Control output on at: oP1 on
5.5.31 Control output off at: oP1 oFF
5.5.32 Output on delay time: oP1 dELA
5.5.33 Control output 2: oP2
5.5.34 Reset grand total from within the
configuration menu: Clr Gtot
5.5.35 Security code: CodE
5.5.36 Reset configuration to factory
defaults r5Et dEF
6. TIMER APPLICATION EXAMPLES
6.1 Measuring the time that a contact is closed
6.2 Controlling a solenoid valve
7. MAINTENANCE when configured as a Timer
7.1 Fault finding during commissioning
7.2 Fault finding after commissioning
7.3 Servicing
7.4 Routine maintenance
7.5 Guarantee
7.6 Customer comments
The BA578E is CE marked to show compliance with the European EMC Directive 2014/30/EU
CONTENTS

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8. OPERATION AS A CLOCK
8.1 Initialisation and loss of power
8.2 Controls when configured as a clock
8.3 Displays when configured as a clock
8.4 Configuration as a clock
8.4.1 Accessing configuration functions
8.4.2 Summary of Clock configuration
functions
8.4.3 Instrument function: FunCtion
8.4.4 Display format: di5PLAY
8.4.5 Set clock display time: 5et
8.4.6 Enter synchronising time: 5YnC t
8.4.7 Status output: 5tat
8.4.8 Enable status output: enbl
8.4.9 Status output onand off times:
5tat:on 1; 5tat:off 1
5tat:on 2; 5tat:off 2
8.4.10 Control output 1: oP1
8.4.11 Enable Control output 1: EnbL
8.4.12 Control output 1 onand off times:
oP 1 :on 1; oP 1 :off 1
oP 1 :on 2; oP 1 :off 2
8.4.13 Control output 2: oP2
8.4.14 Enable control output 2: EnbL
8.4.15 Control output 2 onand off times:
oP2 :on 1; oP2 :off 1
oP2 :on 2; oP2 :off 2
8.4.16 Access on & off times from display
mode: AC5P
8.4.17 Security code: CodE
8.4.18 Reset configuration to factory
defaults r5Et dEF
9. CLOCK CONFIGRATION EXAMPLE
9.1 Configuration procedure
10. MAINTENANCE when configured as a clock
10.1 Fault finding during commissioning
10.2 Fault finding after commissioning
10.3 Servicing
10.4 Routine maintenance
10.5 Guarantee
10.6 Customer comments

4

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1. DESCRIPTION
The BA578E is a general purpose, panel mounting
instrument with two inputs that can be configured
on-site as a Timer or as a Clock.
As a Timer the BA578E can measure and display
the elapsed time between external events, or control
external events via the status output or optional
control outputs.
When configured as a Clock, the instrument can
display time in a variety of formats and the optional
control outputs may be configured to turn on and off
at pre-set times.
This instruction manual is divided into three
sections.
Common features
2. System design
3. Installations
4. Accessories
Timer
5. Operation as a timer
6. Configuration example
7. Maintenance
Clock
8. Operation as a clock
9. Configuration example
10. Maintenance
This instruction manual supplements the
abbreviated instruction sheet supplied with each
instrument.
2. SYSTEM DESIGN
Fig 1 illustrates the basic circuit that is used for all
BA578E Timer installations. BA578E Clock
installations are the same, except that the two input
terminals are not used. For simplicity the status
output and the optional control outputs are
described separately in sections 2.4 and 2.5 of this
manual.
Fig 1 BA578E connections
2.1 Power supply
The BA578E requires a supply of 10 to 30V dc
between terminal 1 & 2 and consumes:
10mA without optional backlight
plus 16mA for optional backlight
plus 6mA when terminals 3 & 4 are linked
plus 6mA when terminals 7 & 8 are linked
2.2 Sensor inputs
When configured as a Timer both inputs may be
connected to a wide variety of sensors as shown in
Fig 1. The two BA578E inputs are not used when
the instrument is configured as a Clock.
The following table shows the instrument's input
switching thresholds when configured to operate
with various sensors. For reliable operation the
BA578E input must fall below the lower threshold
and rise above the upper threshold.

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Sensor Switching thresholds
Lower Upper
Switch 1001000
Proximity detector 1.2mA 2.1mA
Open collector 2k10k
Magnetic pick-off 0 40mV peak
Voltage pulse low 1.0V 3.0V
Voltage pulse high 3.0V 10.0V
Switch contacts, proximity detectors and open
collector sensors require energising which is
achieved by linking two BA578E terminals together
for each input, see Fig 5.
2.2.1 Switch contact input
Any switch contact may be directly connected to
input terminals 5 & 6 or 9 &10. The BA578E
contains a separate configurable debounce circuit
for each input to prevent false triggering. Three
levels of debounce protection are available See
section 5.5.6.
2.2.2 Open collector input
Any sensor with an open collector output such as a
opto-isolator may be directly connected to input
terminals 5 & 6 and 9 &10.
2.2.3 2-wire proximity detector input
Most NAMUR 2-wire proximity detectors may be
connected to a BA578E input, providing the
minimum operating voltage of the proximity detector
is less than 7.5V. The BA578E contains a separate
configurable debounce circuit for each input to
prevent false triggering. Three levels of debounce
protection are available See section 5.5.6.
2.2.4 Magnetic pick-off input
CoiL in the input configuration menu is a low level
voltage pulse input intended for use with a magnetic
pick-off sensor. The BA578E contains a separate
configurable debounce circuit for each input to
prevent false triggering. 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
selectable for each input in the BA578E Timer
configuration menu, VoLt5 L and VoLt5 H allowing
almost any sensor with a voltage output to be used:
The BA578E contains a separate configurable
debounce circuit for each input to prevent false
triggering. Three levels of debounce protection are
available See section 5.5.6.
2.3 Remote reset
Connecting the external reset terminals RS1 and
RS2 together will reset the BA578E when configured
as a Timer and synchronise the displayed time to a
preset time when configured as a Clock.
Note: When used as a Timer the BA578E may also
be reset from the display mode by operating the &
and *push buttons simultaneously for more than
two seconds. See 5.5.20
2.4 Status output
All BA578E instruments have an opto-isolated open
collector output which can be configured to indicate
the status of the instrument, or to perform simple
control functions. The output has the following
electrical parameters:
Ron = 60+ 3V
Roff = 1M
Imax = 10mA
The status output is a passive circuit i.e. un-powered
open collector, but it is totally isolated from all other
circuits. Terminals P1 and P2 may be connected to
another instrument that can accept an open collector
input.
Fig 2 shows how the status output may be used to
produce a voltage output.. The positive terminal of
the status output P1 is connected to the instrument’s
positive supply terminal 1. When the status open
collector output is activated, the voltage on terminal
P2 rises to the supply voltage less 3V and a current
flows through the resistor R1. This current is
defined by R1 which should be chosen to limit the
current to less than 10mA. For a 24V supply R1
should be greater than 2,200.
Fig 2 Generating a voltage status output

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2.5 Control outputs (optional)
Each of the two factory fitted optional control outputs
is a galvanically isolated single pole solid state
switch as shown in Fig 3. The outputs are polarised
and current will only flow in one direction. Terminals
A1 and A3 should be connected to the positive side
of the supply.
Note: Because of the series protection diode some
test meters may not detect a closed alarm output.
Fig 3 Equivalent circuit of each control output
The solid state output of each control output may be
used to switch any dc circuit with parameters of:
V max = 30V
I max = 200mA
Fig 4 Typical control output application
3. INSTALLATION
3.1 Location
The BA578E has a robust glass reinforced Noryl
enclosure with a toughened glass window. The front
has IP66 ingress protection and a gasket seals the
joint between the instrument enclosure and the
panel, the rear of the instrument has IP20 ingress
protection.
The BA578E may be installed in any panel providing
that the operating temperature is between -40°C and
+70°C. At temperatures below -20°C the display
digits will change more slowly and the contrast will
be reduced, but the instrument will continue to
function
Fig 5 shows the overall dimensions of the instrument
together with the recommended panel cut-out
dimensions. To achieve an IP66 seal between the
instrument enclosure and the instrument panel the
smaller tolerance aperture must be used, and the
instrument must be secured with four panel
mounting clamps.
Although the front of the BA578E has IP66
protection it should be shielded from continuous
direct sunlight and severe weather conditions.
3.2 EMC
The BA578E complies with the requirements of the
European EMC Directive 2014/30/EU. For specified
immunity all wiring should be in screened twisted
pairs, with the screens earthed at one point.

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Recommended panel cut-out
dimensions for all installations
Mandatory to achieve an IP66 seal
between instrument and panel
136 +0.5/-0.0 x 66.2 +0.5/-0.0
DIN 43700
138.0 +1.0/ -0.0 x 68 +0.7 -0.0
Support panel wiring to prevent vibration damage
Note: Optional backlight is internally powered
Fig 5 BA578E dimensions & terminals
3.3 Installation Procedure
a. Cut the specified aperture in the panel. To
achieve an IP66 seal between the instrument
enclosure and the instrument panel the
aperture must have the tighter tolerances
specified in Fig 5.
b. Slide the gasket over the body of the BA578E
before inserting the instrument into the panel
aperture.
c. Firstly ensure that all the panel mounting
clamps are closed by turning the knurled
screws fully anti clockwise until the two pips in
the clamp foot align with holes in the clamp
body.
d. Place a clamp in the recess on each side of the
instrument, pulling gently to slide it onto the
dovetail as shown in Fig 6. Push the knurled
screw slightly forward to engage the thread and
tighten by turning clockwise until it is just finger
tight. When the clamps are fitted ensure that
the gasket behind the front panel bezel is
correctly positioned before fully tightening the
clamps to secure the instrument. The maximum
recommended clamp tightening torque is
22cNm (1.95 lbf in) which is approximately
equivalent to finger-tight plus one half turn.
Do not over tighten.
e. Four panel mounting clamps are required to
achieve an IP66 seal between a BA578E and
the instrument panel.
f. Connect the panel wiring to the rear terminal
block(s) as shown in Fig 5. To simplify
installation, the terminals are removable so that
the panel wiring can be completed before the
instrument is installed. In areas subject to
vibration wiring should be secured to prevent
damage to the connectors.
Fig 6 Fitting panel mounting clamps

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3.4 Scale card
The BA578E's units of measurement are shown on
a printed scale card visible through a window at the
right hand side of the display. The scale card is
mounted on a flexible strip that is inserted into a slot
at the rear of the instrument as shown in Fig 7.
Thus the scale card can easily be changed without
removing the BA578E from the panel or opening the
instrument enclosure.
New instruments are supplied with a printed scale
card showing the requested units of measurement, if
this information is not supplied when the instrument
is ordered a blank card will be fitted.
A pack of self-adhesive scale cards printed with
common units of measurement is available as an
accessory from BEKA associates. Custom printed
scale cards can also be supplied - see 4.3
To change a scale card, unclip the tapered end of
the flexible strip at the rear of the instrument by
gently pushing it upwards and pulling it out of the
enclosure. Peel the existing scale card from the
flexible strip and replace it with a new printed card,
which should be aligned as shown below. Do not fit
a new scale card on top of an existing card.
Install the new scale card by gently pushing the
flexible strip into the slot at the rear of the
instrument, when it reaches the internal end-stop
secure it by pushing the end of the flexible strip
downwards so that the tapered section is held by the
rear panel.
Align the self-adhesive printed
scale card onto the flexible strip
and insert the strip into the
instrument as shown below.
Fig 7 Inserting the flexible strip carrying the scale
card into slot at the rear of the instrument.
4. ACCESSORIES
4.1 Display backlight
The BA578E Timer or Clock can be supplied with a
factory fitted backlight that produce green
illumination enhancing display contrast and enabling
it to be read at night or in poor lighting conditions.
The backlight is internally powered from the
instrument power supply so no additional wiring is
required, but the supply current increases as shown
below.
BA578E
configured as Timer
current
consumption
BA578E Timer or Clock 10mA
Additional for backlight 16mA
Addition with terminals 3 & 4 linked 6mA
Addition with terminals 7 & 8 linked 6mA
---------------
Total current 38mA max
BA578E
configured as Clock
current
consumption
BA578E Timer or Clock 10mA
Additional for backlight 16mA
---------------
Total current 26mA max
4.2 Control outputs
Although the dual isolated control outputs are
factory fitted options, they are described in the main
body of this instruction manual as they will be used
for the majority of applications – see section 2.5. If
control outputs are required they should be specified
when the instrument is ordered.
4.3 Scale card
The BA578E has a window on the right hand side of
the display through which a scale card showing the
units of measurement such as hours can be seen.
New instruments are fitted with a scale card showing
the units of measurement specified when the
instrument was ordered, if the units are not specified
a blank scale card will be fitted. A pack of scale
cards pre-printed with common units of
measurement is available as an accessory. These
can easily be fitted on-site to the BA578E without
opening the instrument enclosure or removing it
from the panel. See section 3.4 of this instruction
manual.
Custom scale cards for applications requiring less
common units of measurement are also available.

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4.4 Tag information
New instruments can be supplied with a tag number
or application information printed onto the rear panel
adjacent to the terminals. This information is not
visible from the front of the instrument after
installation.

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5. OPERATION AS A TIMER
When configured as a Timer the BA578E can
measure and display the elapsed time between
external events. The Timer can be started and
stopped by remote sensors, or from the front panel
push buttons.
The addition of 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
remote sensors, or from the front panel push
buttons. Timed events can be repeated using the
CYCLE function which enables the BA578E Timer to
repeat the timing period up to 99 times, or
continuously, with a configurable delay between
timed periods of up to 100 hours.
The BA578E may be configured to time-up from
zero to the set time 5Et t, or to time-down from the
set time to zero. Times may be entered and
displayed in hours, minutes or in seconds, or in a
combination of units. Elapsed or remaining time is
continuously displayed and a separate display may
be activated to show the target set time 5Et t.
Throughout the timing cycle the instrument can be
paused and restarted without changing the cycle
time. Resetting is accomplished via the front panel
push buttons or a remote contact.
A grand total time is maintained by the instrument
which can be viewed by operating the front panel
push buttons and reset from the display mode or
from within the configuration menu.
Fig 8 shows a simplified block diagram of the
BA578E when configured as a Timer. The two
separate inputs A and b can be individually
configured to accept inputs from a wide variety of
sensors. When the sensor requires energising to
detect its state, such as a switch contact, open
collector or a two wire proximity detector, a link
connected between external terminals of the
BA578E supplies power to the sensor input
terminals.
The optically isolated open collector status output is
intended for monitoring the Timer's status, but may
also be used for simple control applications.
The instrument can be supplied with the following
factory fitted accessories:
Internally powered Backlight
Dual isolated Control Outputs
The optional factory fitted dual isolated solid state
control outputs may be independently configured to
be activated in any of the timer's state allowing the
BA578E Timer to perform a wide variety of tasks.
5.1 Initialisation
Each time power is applied to a BA578E
initialisation is performed. After a short delay the
following display sequence occurs:
All segments of the display are activated
BA578E is ready to start functioning using
the configuration information stored in the
instrument's permanent memory.
Fig 8 BA578E block diagram with Timer
configuration.

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5.2 Controls when configured as a Timer
The BA578E is controlled and configured via four
front panel push buttons. In the display mode i.e.
when the instrument is timing the push button
functions are:
Push Button Functions
&When local control is enabled starts
the Timer. See 5.5.9
*When local control is enables stops
the Timer. See 5.5.9
) +* Shows the grand total (run time) in
hours and tenths of an hour
irrespective of Timer configuration.
If buttons are held for longer than
ten seconds the grand total may be
reset to zero if the grand total reset
sub-function Glr gtot is enabled in
the LoC r5Et configuration function.
See 5.5.21
To reset the grand total to zero from
the display mode press the
)+*buttons for ten seconds
until CLr.no is displayed. Using the
&or *button change the display
to CLr.YE5 and press ).
& +* Resets the Timer to zero or to the
set time 5Et t depending on
whether the Timer is configured to
time-up or time-down when the two
buttons are operated
simultaneously for more than three
seconds. This is a configurable
function. See 5.5.20
( +* When enabled in the configuration
menu, operating these two buttons
simultaneously provides direct
access from the display mode to
the set time 5Et t and, if the repeat
timing cycle is enabled, to the
restart delay r5t dela See 6.5.16
( +& Shows firmware version
( +) Accesses the configuration menu
5.3 Displays when configured as a Timer
The BA578E has two digital displays and associated
annunciators as shown on front cover of this
manual.
Elapsed time The upper display shows the
elapsed time since the Timer
was started when timing-up from
zero and the remaining time
when timing-down from the set
time. Display may be formatted
as hh:mm:ss; hh:mm; mm:ss or
ss.
Lower display The display options available on
the lower display depend on
whether the Timer repeat cycle
function CYCLE5, which can
repeat the timing period up to 99
times with a configurable delay
between periods, is enabled.
CYCLE5 disabled
The lower display shows the set
time 5ET t or the lower display
may be disabled if not required.
See 5.5.8
CYCLE5 enabled
The lower display shows the
total number of repeat cycles
requested together with the
number of the current cycle.
Each operation may be briefly
named at it's start or periodically
throughout the cycle.
Alternatively the lower display
may be disabled if not required.
See 5.5.8
Reset Activated while elapsed time is
annunciator being reset to zero or to the set
time 5ET t.
Status output RTx shown while status output
annunciator is activated.
Grand total Activated when the grand total
annunciator time is being shown on the
upper display.
Control output Show status of both optional
annunciators control outputs.

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5.4 Timer structure
Fig 9 illustrates the Timer structure and function as a
state diagram. It applies when the instrument is
measuring the time between events or is controlling
external events.
The circles in Fig 9 represent the five Timer states,
Reset,Running, Restart-delay, Paused and
Complete. The lines between the circles represent
the event required to move the Timer between
states. e.g. to initiate timing the Timer is moved
from the Reset state to the Running state by a start
event. This could be an input signal at input A or
operation of the &button. Similarly, to pause the
Timer while it is timing, the Timer must be moved
from the Running state to the Pause state by a stop
event which could be an input on input b or
operation of the *button.
Reset
In this state the Timer is readied for operation.
The Timer is stopped and loaded with zero for
timing-up or 5Et t for timing-down.
Running
Entered by a start event from the Reset or
Paused states. The Timer times-up to
5et t
or times-down to zero depending upon it's
configuration.
Pause
Entered by a stop event from Running or
Restart-delay. Timer is stopped, a start event
returns the timer to it's previous state.
Restart-delay
Entered automatically from Running. At 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
cycle can be specified to repeat up to 99 times, or
can be configured to repeat continuously.

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5.5 Configuration as a Timer
The BA578E is configured via the four front panel
push buttons. All the configuration functions are
contained in an easy to use intuitive menu that is
shown diagrammatically in Fig 10.
Each menu function is summarised in section 5.5.2
of this manual and each summary includes a
reference to more detailed information.
All new BA578E instruments are supplied configured
as requested at the time of ordering. If configuration
is not requested, the BA578E will be supplied with
default Timer configuration as shown below, but the
instrument can easily be re-configured on-site.
Function Display Default
Access code CodE 0000
Function FunCtion ELAP5E
Input A inPut-A oP .CoL
Input b inPut-b oP .CoL
Debounce (each input) dEbounCE dEFAuLt
Display 2 di5P-2 5td
Start stop 5tAr5toP LoCAL
Units unit5 12 :00 :00
Set time 5Et t 00 :00 :00
Enable repeat cycle CYCLE5 oFF
Access set time from AC5Et t oFF
display mode.
Direction of count uP or dn dn
Recovery from power p-fail idle
supply failure.
Local total reset t-rE5Et on
Local grand total reset Gt-rE5Et oFF
External reset E-r5et 5td
Enable status output enbl off
Enable control output 1 EnbL oFF
Enable control output 2 EnbL oFF
5.5.1 Accessing configuration functions
Throughout this manual front panel push buttons are
shown as &,*,(and ). Legends displayed
by the instrument are shown in a seven segment
font just as they appear on the instrument e.g.
inPut-A and Clr Gtot.
Access to the configuration menu is obtained by
operating the (and )push buttons
simultaneously. If the instrument is not protected by
an access security code the first parameter
FunCtion will be displayed. If a security code other
than the default code 0000 has already been
entered, the instrument will display CodE.Press
(to clear this prompt and enter the security code
for the 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
parameter FunCtion to be displayed. If an incorrect
code is entered, or a push button is not operated
within ten seconds, the instrument will automatically
return to the display mode.
All configuration functions and prompts are shown
on the upper eight digit display.
Once within the main configuration menu the
required parameter can be selected by scrolling
through the menu using the &or *push buttons.
The Timer configuration menu is shown
diagrammatically in Fig 10.
When returning to the display mode following
reconfiguration, the Timer will display dAtA followed
by 5AVE while the new information is stored in
permanent memory.

15
5.5.2 Summary of Timer configuration
functions
This section summarises all the Timer configuration
functions. When read in conjunction with Fig 10 it
provides a quick aid for configuring the Timer. If
more detail is required, each section of this
summary contains a reference to a full description of
the function.
Display Summary of function
FunCtion Instrument function
Defines the function of the instrument.
May be set to:
ELAP5E Timer configuration
CloC Clock configuration
All the entries in this Timer summary
assume that the BA578E is configured
as a Timer by selecting ELAP5E.
See section 5.5.3
inPut-A Configuration of Input A
Contains a sub-menu with two sub-
functions:
inP.tYPE Selects input sensor
type
dEbounCE Defines input debounce
See section 5.5.4
inP .tYPE
Configures the Timer sensor Input A to
accept one of six types of input:
VoLt5 L Voltage pulse <1 >3V
VoLt5 H Voltage pulse <3 >10V
CoiL Magnetic pick-off
Pr .dEt Proximity detector *
ContACt Switch contact *
oP .CoL Open collector *
*Energise input by linking terminals 3
& 4 for Input A.
See section 5.5.5
dEbounCE
Defines the level of input debounce
applied to the input A to prevent false
counting:
dEFAuLt
HEAVY
LiGHt
See section 5.5.6
Display Summary of function
inPut b Configuration of input-b
As configuration of inPut A
*Energise input by linking terminals
terminals 7 & 8 for Input b.
See section 5.5.7
di5P-2 Lower display
Configures the lower display to show
set time 5Et t or, when the CYCLE5
repeat function is activated, the restart
delay count-down plus the cycle count
number.
With CYCLE5 not enabled:
Select Lower display shows
5td Set time 5et t
oFF Disables lower display.
See section 5.5.8
With CYCLE5 enabled:
Select Lower display shows
5td Cycle counts requested
and counts performed
with time-down shown
during requested delay
period. Brief notification
of timer status i.e. CYCLE
or dELAY at start of each
period.
LAbEL Exactly as 5td but with
periodic notification of
timer status i.e. CYCLE or
dELAY.
oFF Disables lower display.
See section 5.5.8
5tAr5toP Starting and stopping the timer
Defines how the Timer is started and
stopped.
Start Stop
ControL 1 A input high b input high
ControL 2 A input low b input low
ControL 3 A input high A input low
ControL 4 A input low A input high
LoCAL & button *button
High and low inputs are specified for a
voltage input. For other types of
sensor input, see section 5.5.9

16
Display Summary of function
unit5 Units of display
Enables the format of the displayed
time to be selected.
12 :00 :00 Hours, minutes & seconds
12 :00 Hours & minutes
30 :00 Minutes & seconds
30 Seconds
Excludes delay of optional control
outputs which is always shown in
seconds and the grand total which is
always shown in hours.
See section 5.5.10
5Et t Set time
This is the BA578E Timer's setpoint.
When controlling an external event via
the optional control outputs the
BA578E will time-down from the set
time to zero or time-up from zero to the
set time.
Note: Timer will only start if a non zero
value is entered for set time 5et t.
See section 5.5.11
CYCLE5 Repeat timing cycle
Contains a sub-menu with three
sub-functions, EnbL,CYCL Cnt and
r5t dELA.
See section 5.5.12
Cycle function enable EnbL
Enables or disables the cycles function
without changing the parameters.
See section 5.5.13
Cycle count CYCL Cnt
Defines the number of times that the
timer cycle is repeated.
See section 5.5.14
Restart delay r5t dELA
Defines the time delay between timer
cycles.
See section 5.5.15
AC5Et t Access 5Et t from display mode
Contains two sub-functions, EnbL
which when activated allows the set
time 5Et t and restart delay r5t dela
to be adjusted from the display mode.
The second sub-function ACCd defines
a separate access code to protect
access to 5Et t from the display mode.
See section 5.5.16
Display Summary of function
uP or dn Direction of count
Defines whether the Timer times-up
from zero to the set time 5Et t,or
times-down from 5Et t to zero.
See section 5.5.17
P-FAiL Power Failure
Defines how the Timer functions when
power is restored after a power failure.
Contains three alternative options
idle, Pau5E and continue.
Idle Idle
Timer returns in stopped state as if
having completed single timing cycle
displaying Timer value when power
was lost. Timing resumes when reset
followed by start instructions are
received.
Pause pau5e
Timer returns in paused state
displaying Timer value when power
was lost. Timing resumes when start
instruction is received.
Continue continue
Timer will continue without any manual
intervention.
See section 5.5.18
LoC r5Et Local reset
Contains two sub-functions which
when enabled allow the Timer and the
grand total, which represents total
Timer run-time, to be reset to zero via
the front panel push buttons while the
Timer is in the display mode.
See section 5.5.19
Local total reset r5Et .EnbL
When on is selected, Timer is reset to
zero, or 5et t if timing-down, when the
&and *buttons are operated
simultaneously for more than three
seconds in the display mode.
See section 5.5.20
Local grand total reset CLr Gtot
When on is selected the grand total,
which represents total run-time, may
be reset to zero by operating the
)and *buttons simultaneously for
more than 10 seconds in the display
mode.
See section 5.5.21

17
Display Summary of function
e-r5et External reset
Defines the time taken for closure of
external contacts connected to
terminals RS1 & RS2 to reset the
Timer.
5td 1s
fa5t 2ms
See section 5.5.22
5tat op Status output
Contains sub-menu with four sub-
functions, EnbL,5tat on,5tat oFF and
5tat . dELA
Note: Output is an open colletor.
See section 5.5.23
Status output enable EnbL
Enables or disables the status output
without changing any of the
parameters.
See section 5.5.24
Status output on 5tat on
Status output turns on when the Timer
enters the state selected in this
function.Output phase can be
reversed.
See section 5.5.25
Status output off 5tat oFF
Status output turns off when the Timer
enters the state selected in this
function.Output phase can be
reversed.
See section 5.5.26
Status on delay 5tat.dELA
Introduces a specified delay between
the on condition occurring and the
status output being activated.
See section 5.5.27
oP1 Control output 1 (Optional)
Contains sub-menu with four sub-
functions, EnbL,oP1 on,oP1 oFF and
oP1 dELA.
See section 5.5.28
Control output enable EnbL
Enables or disables control output 1
without changing the parameters.
See section 5.5.29
Display Summary of function
Control output 1 on oP1 on
Control output 1 turns on when the
Timer enters the state selected in this
function.Output phase can be
reversed.
See section 5.5.30
Control output 1 off oP1 oFF
Control output 1 turns off when the
Timer enters the state selected in this
function.Output phase can be
reversed.
See section 5.5.31
Control output on delay oP1 dELA
Introduces a specified delay between
the on condition occurring and control
output 1 closing.
See section 5.5.32
oP2 Control output 2 (Optional) op2
Functions as control output 1.
See section 5.5.28 to 5.5.32
CLr Gtot Resets grand total to zero
This function resets the grand total,
which represents the total Timer run-
time, from within the configuration
menu when CLr YE5 is selected and
5urE is entered to confirm the
instruction.
Note: Once reset, the grand total can
not be recovered.
See section 5.5.34
CodE Security code
Defines a four digit alphanumeric code
that must be entered to gain access to
the instrument's configuration menu.
Default code 0000 disables the security
function and allows unrestricted
access to all configuration functions
when the (and )buttons are
operated simultaneously in the display
mode.
See section 5.5.35
r5Et dEF Reset to factory defaults
Resets the BA578E to the Timer
factory default configuration shown in
section 5.4 Instruction confirmed by
entering 5urE.
See section 5.5.36

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5.5.3 Instrument function: FunCtion
The BA578E may be configured as a Timer or as a
Clock. This section of the instruction manual
describes the Timer, for details of Clock
configuration see section 8.
To reveal the existing function of the instrument
select FunCtion from the configuration menu and
press (.IfELAP5E is displayed, the instrument is
already configured as a Timer therefore press )to
return to the FunCtion prompt in the configuration
menu. If CloC is displayed, press the *or &
button to change the setting to ELAP5E followed by
the (button which will result in a 0000 prompt
being displayed with the first digit flashing. This is a
request for the instruction to be confirmed by
entering 5urE using the &or *button to adjust
the flashing digit and the (button to move control
to the next digit. When 5urE has been entered,
pressing )will change the instrument to a Timer
and return the instrument to the display mode. To
configure the Timer enter the configuration menu by
pressing the (and )buttons simultaneously until
function is displayed.
5.5.4 Input A: inPut-A
The inPut-A function contains two sub-functions
inP .tYPE which defines the type of sensor that may
be connected to the input and dEbounCE which
adjust the amount of input noise rejection.
5.5.5 Input type: inP .tYPE
inP .tYPE is a sub-menu in the inPut-A function
which defines the type of input sensor that may be
connected to input A. To check or change the type
of input, select inPut-A in the configuration menu
and press (which will reveal the inP.tYPE prompt,
pressing (again will show the existing input. If set
as required press )twice to return to the
configuration menu, or repeatedly press the *or
&button until the required type of input is
displayed, then press )twicetoreturntothe
configuration menu.
One of following six types of input may be selected:
Display Input type Switching
thresholds
Low High
oPCoL Open collector² 2 10k
VoLt5 L Voltage pulse low¹ 1 3V
VoLt5 H Voltage pulse high¹ 3 10V
CoiL Magnetic pick-off 0 40mV
Pr .dEt Proximity detector² 1.2 2.1mA
ContACt Switch contact² 100 1000
Notes:
1. Maximum voltage input +30V.
2. For sensors connected to input A that
require energising i.e. a proximity detector,
a switch contact or an open collector,
terminals 3 & 4 of the BA578E Timer should
be linked together.
3. To function correctly, the input signal must
fall below the lower switching threshold and
rise above the higher switching threshold.
5.5.6 Debounce: dEbouncE
dEbouncE is an adjustable sub-menu in the
inPut-A' function which prevents the Timer
mis-functioning when the input has noisy edges,
such as those resulting from a mechanical contact
closing and bouncing. Three levels of protection
may be selected and the amount of debounce
applied depends upon the type of Timer input that
has been selected in the inP .tYPE function.
The following table shows the minimum time that the
input signal must be continuously above the upper
input switching threshold and continuously below the
lower switching threshold to ensure that the Timer
processes the input signal. Input switching
thresholds are shown in section 5.5.5.
De-bounce
level
Min input pulse width
Type of Input
Contact All
others
Default 1600µs 40µs
Heavy 3200µs 350µs
Light 400µs 5µs
5.5.7 Input b: inPut-b
The input-b function and sub-functions are identical
to the input-A function & sub-functions described in
sections 5.5.4, 5.5.5 and 5.5.6.
Notes:
1. Maximum voltage input +30V.
2. For sensors connected to input b that
require energising i.e. a proximity detector,
a switch contact or an open collector,
terminals 7 & 8 of the BA578E Timer should
be linked together.
3. To function correctly, the input signal must
fall below the lower switching threshold and
rise above the higher switching threshold.

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5.5.8 Lower display: di5P-2
The configuration options for the lower display vary
depending upon whether the repeat timer function
cycle5 is enabled.
CYCLE5 disabled
When the lower display is enabled it shows the
set time 5ET t
CYCLE5 enabled
When the lower display is enabled it shows the
total number of repeat cycles requested together
with the number of cycles performed. During the
delay time between cycles the display shows the
time until the next cycle starts.
Menu options allow each part of the cycle to be
briefly identified at the start of each part, or
periodically throughout the cycle.
To check or change the configuration of the lower
display select di5P-2 from the configuration menu
and press (which will reveal the existing setting
which can be changed by pressing the *or &
button followed by the )button to enter the
selection and return to the configuration menu.
If the CYCLE5 function is not enabled the
following two options are available:
5td Lower display shows the Timer's set time
5Et t, to which the BA578E will time-up to,
or time-down from, depending upon the
direction of count selected in the uP or dn
function.
oFF Lower display disabled.
If the CYCLE5 function is enabled the following
three options are available:
5td Lower display shows the number of cycles
requested together with the current cycle
number. During the configurable delay
period between cycles the display times-
down from the requested delay to zero. A
brief notification of timer status i.e. CYCLE
or dELAY is shown at the start of each
period.
02 -11
Current Number of cycles
cycle number. requested, not
shown when cycle is
continuously repeated.
LabEL Exactly the same as 5td, but timer status
i.e. CYCLE or dELAY is shown periodically.
oFF Lower display disabled.
5.5.9 Starting & stopping the Timer: 5tAr5toP
The Timer may be started and stopped by signals on
Input A and Input b, or by operation of the front panel
*or &push buttons.
To check or change the control of the Timer, select
5tAr5toP from the configuration menu and press (
which will reveal the existing setting which can be
changed by pressing the *or &button followed
by the )button to enter the selection and return to
the configuration menu. The options available are
shown in the following tables.
Voltage inputs and control from front panel
Display Start Stop
ControL 1 A input high b input high
ControL 2 A input low b input low
ControL 3 A input high A input low
ControL 4 A input low A input high
LoCAL &button *button
Contact and open collector inputs
Display Start Stop
ControL 1 A open b open
ControL 2 A closed b closed
ControL 3 A open A closed
ControL 4 A closed A open
Proximity detector input
Display Start Stop
ControL 1 A low current b low current
ControL 2 A high current b high current
ControL 3 A low current A high current
ControL 4 A high current A low current
5.5.10 Units of display: unit5
Defines the format of all displayed times, except the
delay time of the status output and optional control
outputs which are always shown in seconds and the
grand total which is always shown in hours and
tenths of an hour.
To check or change the units of display, select unit5
from the configuration menu and press (which
will reveal the existing setting which can be changed
by pressing the *or &button followed by the )
button to enter the selection and return to the
configuration menu. The options available are
shown in the following tables:
Display
12 :00 :00 Hours, minutes & seconds
12 :00 Hours & minutes*
30 :00 Minutes & seconds
30 Seconds
*Only available when time specified in seconds for
5et t and r5t dela are zero or exactly divisible by
60.
The Timer's maximum elapsed time in any format is
equivalent to 99hours, 59 minutes & 59 seconds.

20