Hoyles MAYDAY Quick Start Manual

Specification.
1.The MAYDAY unit is mains powered and the psu has the capacity to
deliver approx. 150mA for ancillary equipment. A 12volt/0.8Ahr
rechargeable battery is provided for backup.
2. The unit is housed in a plastic enclosure approx. 165 x 160 x 80 mm.
Sealed to IP64.
3. Control and indication is:-
3.1. An On Off keyswitch to arm the unit.
3.2. An OK button to reset the timers and the alarm.
3.3. A green Power On LED.
3.4. A yellow System Active LED.
3.5. A red Call Activated LED.
3.6 . An integral piezo sounder. (85db at 10cm)
3.7. Two adjustable run down timers
4.Inputs are provided for connecting ancillary devices such as remote OK
buttons or movements detectors to supplement 3.2 above.
5. Volt free contacts are provided by three independent relays.
5.1 Relay 1 operates when the keyswitch is thrown to arm the unit. This
relay can, if required, be connected to an indicator such as a buzzer and/or
lamp at a remote location to indicate that the MAYDAY unit is armed and
operating.
5. 2 Relay 2 operates at the end of the first pre-determined run down delay
T1 (15-60 minutes). This relay can be connected to an audible warning
device to alert the Lone Worker that he/she must take some action to restart
the timer.
5.3 Relay 3 operates at the end of the second pre-determined run down
delay T2 (2-10 minutes). This is used to connect to a remote signalling
device such as a buzzer and/or lamp unit or possibly a speech dialler to
summon off site assistance.
6. All terminations are via screw terminals for cables up to 1mm.
7. The enclosure has rear cable entry 19mm knockouts and bottom cable
entry 15 and 19mm knockouts.
8. All units are supplied with the same key. However this can be
disconnected at the terminals and a different means of turning the unit on
and off can be used if key-loss or malicious abuse is deemed to be a
problem.
* Local signalling can be audible/visual devices. Remote signalling
generally uses a speech auto-dialler over the telephone network.
Application notes.
System 1.
Lone working environment on an occupied site .
Use Mayday LMW1 with S1678RP as remote indicator. Remote visual
indication is given for System Active and audible indication for Call
Activated, ie. an emergency.
System 2.
Lone working environment on an un-occupied site.
Use Mayday LMW1 with SD1E speech auto-dialler to signal for assistance
via a landline. Signalling can also be given for start of work (ie System
Active), end of work (ie System switched off) and Call Activated, ie. an
emergency. Up to three first aider's telephone numbers can be programmed
into the auto-dialler. Each is dialled in turn until acknowledged by the
recipient dialling 8. A fourth number can be programmed in the dialler for the
lone worker. If no first aider acknowledges, then the lone worker will be
called by the system within the first few minutes of starting work to advise
that he/she is working alone and without cover! A separate landline or mobile
is needed for this return call.
System 3.
Wandering lone worker (with a mobile phone) on an un-occupied site
Use Mayday LMW1 and SD1E speech auto-dialler for signalling via a
landline. A mobile phone is also required for the lone worker. It is
recommended that this is dedicated for the purpose and tested periodically.
As is system 2 above signalling can also be given for start of work (ie System
Active), end of work (ie System switched off) and Call Activated. Up to three
first aider's telephone numbers can be programmed into the auto-dialler.
Each is dialled in turn until acknowledged by the recipient dialling 8.If no first
aider acknowledges, then the lone worker's mobile will be called by the
system within the first few minutes of starting work to advise that he is
working alone and without cover!
The MAYDAY LMW1 will trigger the SD1E periodically call the lone worker
on the dedicated mobile phone. By pressing 8 on the keypad he is effectively
pressing the OK button. If he fails to acknowledge in this way then the SD1E
will start to dial the first aiders in turn via the landline.
.
In systems 1 & 2 above movement detectors such as PIRs can be used to
operate as acknowledgement devices in lieu of or in addition to the OK reset
button(s) in order to render the system largely hands free.
In noisy environments consideration should be given to installing additional
MAYDAY Lone Worker Safety System
sounders within the working areas.
Installation
1. The MAYDAY unit will require a permanent supply of 240vac. This must be
connected at all times to ensure the standby rechargeable battery remains
fully charged. The unit should be sited conveniently in the work place for the
OK button to be pressed periodically and for the unit to be armed and dis-
armed when required. It is not necessary to drill the box to fix it to the wall. Use
the keyhole fixing and the two holes provided in the cable entry chamber. All
cable entries should be through the bottom edge of the cable entry chamber.
2. Remove both the control and cable entry covers.
Note:
AA' and BB' are already pre-wired to the keyswitch and the OK button.
CC' is used for closed circuit contacts of optional movement detectors. If not
used they should be linked out.
DD' and EE' are not used.
+ve and -ve provide 13.5vdc for powering ancillary devices.
Leave terminal X disconnected.
All the relay terminals are voltage free and are in the format NC. COM NO.
when the unit is un-powered ie all relay coils de-energised.
With power applied:
R1 energises when the unit is armed.
R2 energises at the end of T1 (ie start of T2).
R3 is normally energised and de-energises on Call Activated.
3. Make all low voltage connections first (as shown in the diagrams overleaf)
to the row of 22 terminals marked SWITCH INPUTS and CLEAN RELAY
OUTPUTS. If a speech dialler is being used leave the telephone line
disconnected until all programming is complete and you are ready to test.
4. Connect the mains supply cable but leave isolated for now.
5. The standby battery is fitted with a polarised plug. Plug the battery onto the
pins located at the top right hand corner of the printed circuit board just above
the open fuse. Do NOT reverse the polarity this will damage the unit.
6. If the battery is sufficiently charged you can make a preliminary test by
arming the unit with the keyswitch. Without the mains supply connected the
unit will bleep twice and then bleep once every 90 seconds. The System Active
LED will illuminate. This short test verifies that the processor is working.
7. Switch off at the keyswitch. The System Active LED should extinguish.
8. Switch on the mains supply. The green Power On LED should illuminate.
9. If necessary turn the two timer potentiometers T1 and T2 fully anticlockwise
and test the MAYDAY by following the Operation notes below.
10. Set the potentiometers T1 and T2 to the required times and fix the front
covers.
11. The Speech Dialler (if fitted) should now be programmed and connected to
the telephone line. Separate instructions are provided for the SD1E dialler.
12. Finally make a complete test of the system including speech dialler and
verify receipt of the messages and that acknowledgement functions correctly.
Operation.
1. The green mains on LED is illuminated at all times unless the mains has
failed.
2. When the keyswitch is thrown to arm the unit relay R1 changes over, the
yellow System Active LED illuminates and the run down timer T1 starts. If the
keyswitch is used to switch off at any time then relay R1 is restored to its de-
energised condition and no further timing or other action takes place.
3. When armed the Lone Worker is expected to periodically press the OK
button on the MAYDAY or an ancillary button within the workplace.
Alternatively if a movement detector is used to sense movement within the
workplace then no action other than movement is required by the worker.
4. If the OK button is pressed, the panel buzzer will bleep to acknowledge this.
If the movement detector input CC' resets the timer it will only be
acknowledged if T1 is more than 15 minutes into it's timing. This will minimise
annoyance when moving around constantly.
5. At the end of the T1 delay period, relay R2 will operate and the integral
buzzer will sound for a time period T2. If no action is taken such as pressing the
OK button or movement detection within the T2 period then the Call Activated
relay R3 operates to trigger a remote signalling device. The red Call Activated
LED will also illuminate, Relays R1 and R2, and the buzzer will deactivate. The
buzzer and sounder relay R2 will then operate intermittently until the unit is
reset by the OK button or switched off by the key switch.
6. Under mains fail condition the green power on LED will extinguish and:
If the mains have failed prior to arming then, on arming the unit, the buzzer will
bleep twice and then sound intermittently, 0.5 secs. on 90 secs. off but the unit
will still operate as normal when armed.
If the mains fails after arming then the MAYDAY will behave as though T1 has
timed out, ie. starting T2 and sounding the buzzer.
The above conditions assume that the rechargeable standby battery is
healthy. The alarm relay R3 is failsafe so that if all power, mains and battery, is
lost an alarm output is generated.
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