Timeguard EMU56 User manual

24 HOUR & 7DAY
ELECTRONIC OEM TIME
CONTROL MODULE
Cat No. EMU56
OPERATING
INSTRUCTIONS

1
The EMU56 Electronic Time Control Module is intended for
use in OEM equipment. It is designed to operate from 1.25 –
1.65V supply and produces an open collector PNP outlet
suitable for sourcing up to 0.25mA from the 1.5V supply when
in the ON state. The module operates within the temperature
range –10° to 50°C.
The EMU56 is designed for use with the PB04 power board
which is operated from 220-240V AC mains, provides a relay
output with voltage free normally open contacts which can
carry up to 10A resistive or 6A inductive, and provides a
battery backup supply to the module. PB04 operating
temperature–10°Cto 60°C.
The EMU56 is supplied with a black plastic bezel size 60 x
47mm to fit panel cut out 56 x 44mm. The PB04 power board
occupies an area of 51 x 61mm and requires clearance of 30mm
above the PCB.

2
Features
• 112 memory locations
• 8ON and 8 OFF different switching commands available
each day (up to 56 ON/OFF switchings per week)
• Self cancelling ON and OFF override
• Day and time omit capability
• Shortest switching interval 1 minute
Connecting Diagram

3
Programming
Five setting buttons are provided, the Set button is used to
sequence the module in programming mode. The Day, Hrs
and Mins buttons are used to set the days, hours and minutes
required.
ON/OFF programmes can also be overridden till the third
subsequent programme change by using the O’ride button. To
prepare the module for programming clear the memory by
pressing both the Set and Day buttons simultaneously until the
display disappears. On releasing the buttons the display will
show 0:00 INT with the colon flashing.
Setting the Clock Time
Toset the clock time press the Set button briefly and release,
the display shows 0:00 with "C" flashing at the right of the
display. Press the Day button until the black dot indicates the
desired day of the week (1-7). If in doubt, use day 1 as Monday.
ON
INT INT
ON
C

4
Use the Hrs button to set the hours followed by the Mins
button to set the minutes to the actual clock time. Rapid
selection can be achieved by continuously holding down either
the Hrs or Mins buttons.
If the Set button is now pressed briefly and then released, the
display will return to the correct time of day with the colon
flashing. The module is now in its operating condition and will
switch "ON" and "OFF" according to the programmes set. To
alter the clock setting subsequently there is no need to clear the
memory first.
NB: Pauses of 15 seconds or more during clock setting will
result in automatic return to the operating condition.
Important: After setting a clock time which falls within a
programmed "ON" period, the unit will not switch "ON". An
"ON" time only (leaving the "OFF" time blank i.e. ––:––) can be
programmed for just after the current clock time on the current
day and the unit will turn "ON" when the clock time equals

5
the programmed "ON" time and behave to programme
subsequently. There is no need to remove this "ON"
programme after start up.
Planning the Programmes
A programme is a pair of ON/OFF settings, which will dictate
when the appliance will switch "ON" and "OFF". Programmes
can be set beforeor after setting the clock time. Programmes can
be carried over midnight by programming the required "ON"
time and then an "OFF" at 0:00 for the first day, followed by an
"ON" at 0:00 and the required "OFF" time for the second day.
Setting Programme 1
Press the Set button and hold it down for about 3 seconds until
the display shows with a flashing "1" (indicating
programme 1) appearing underneath the "ON" indicator and
the day indicator will point to day 1. To programme the first
ON/OFF times for day 1 set the "ON" time required by
ON
INT INT
ON
C

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pressing the Hrs and Mins buttons separately until the
desired time is displayed. Press the Set button briefly, and the
display will show with "INT" appearing
underneath the flashing "1". Note: INT = Interrupt and means
"OFF". The first "OFF" time for day 1 can now be
programmed by using the Hrs and Mins buttons. Press the
Set button briefly and the display shows and the
programme 2 "ON" time can be entered as for programme 1.
NB: Pauses of 15 seconds or more during programming will
result in automatic return to the operating condition.
Programming the module for day 1 should continue in this
way up to the programme eight if so desired.
Note: It is not necessary to enter all eight programmes
available to you on this day, those not required should be left
blank (––:––). You can also omit by not programming any
ON/OFF times on the day you require no switchings.
ON
INT INT
ON
C
ON
INT INT
ON
C

7
Setting Programmes – Day 2, 3 etc.
If the display still shows a day 1 "ON" or "OFF" programme
press the Day button, and the day indicator will move above
day 2. If, instead, the display shows the clock time with the
colon flashing press the Set button and hold down for about 3
seconds until the display shows the first programme "ON"
time for day 1. Press the Day button again briefly and the day
indicator will move above day 2. In either case the display will
change to with a flashing 1 (indicating
programme 1 on day 2) appearing underneath the "ON"
indicator.
ON
INT INT
ON
C

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The required programmes can now be set for day 2 in the same
way as for day 1. Days 3 to 7 can be programmed in the same
way as for days 1 and 2.
Once the programming is complete press the Set button for
about 3 seconds until the display returns to the correct time of
day with the colon flashing. The module is now in its
operating condition.
Suspending Programmes
Press and hold down the Set button for about 3 seconds until
the first "ON" programme, day 1 is displayed. Press the Day
button repeatedly until the day indicator points to the day on
which you wish to suspend the ON/OFF time. Press the Set
button repeatedly until the "ON" or "OFF" time of the
programme you wish to suspend is displayed.

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Now press the O’ride button. A black "X" will appear
indicating that both the "ON" and "OFF" times for this
programme have been suspended until reinstatement by the
user. There is no limit to the number of programmes you can
suspend.
To reinstate a suspended programme return to either the "ON"
or "OFF" time of the programme which has been suspended
and cancel the black "X" by pressing the O’ride button. The
ON/OFF programme will now operate on the selected day.
Reviewing the Programmes
Press and hold down the Set button for about 3 seconds until
the first programme "ON" time for day 1 is displayed. Press
the Day button repeatedly until the day indicator points to the
day to be reviewed after which repeated brief pressing of the
Set button will display each programme or unused setting in

10
sequence for that day. At any point the setting may be altered,
if required, by use of the hour and minute buttons. To review
another day press the Day button until the day indicator points
to the required day and use the Set button to select programme
times as before.
Overriding the Module
Tooverride the programme in operation, and to immediately
switch the device ON or OFF, simply press the O’ride button.
The display will change from "ON" to flashing "INT" or vice
versa. The override automatically cancels when the third
subsequent programme change occurs.

HELPLINE
020-8450-0515
For a product brochure please contact:
Timeguard Ltd.
Victory Park, 400 Edgware Road,
London NW2 6ND Tel: [phone]
or email [email protected]
67-058-71 [2]