Hoyles MayDay - Lone worker alarm - Manual

T. 01744 886600 F. 01744 886607 E. [email protected] W. www.hoyles.com
Hoyles Electronic Developments Ltd
Specification. IN3 Input from a movement detector such as a PIR (Normally Closed
-open on detection - ie OK)
IN4 Input from a speech dialler. (Apply a -ve for OK)
IN5 Timer set-up. This is a divide by 60 facility (eg 57mins= 57sec).
Volt free contacts are provided by three independent relays:-
Relay 1 operates when the keyswitch is thrown to arm the unit.
Relay 2 operates at the end of the first pre-determined run down
delay T1 (20-60 minutes).
Relay 3 (normally on, off when operated) operates at the end of
the second pre-determined countdown delay T2 (2-10 minutes).
The unit is
Eight outputs are provided for remote indications:
housed in a plastic enclosure approx. 125w x 175h x 55d ( mm).
LED1 - 4 follow the LEDs on the front panel.
The MAYDAY has the following integral indications and controls:-
LED5 Remote buzzer, follows internal buzzer
1. An On Off keyswitch to arm the unit.
LED6 Remote LED, all indications.
2. An OK button to restart the countdown timer and reset the alarm.
LED7 Remote LED to indicate T2 has run out.
3. A green Power On LED.
LED8 Remote power LED.
4. Four red System Active countdown LEDs.
Timer set-up procedure.
5 . An integral piezo sounder. (85db at 10cm)
With IN2 closed (or keyswitch OFF), link out IN5, LED’s 2 and 4 only
6. Two adjustable countdown timer controls. These are fitted
illuminate. Set T1 and T2 pots approx. (Best guess). Press the OK
internally and only used during the installation set-up.
button, the unit bleeps and leds 1 and 3 only illuminates for T1 time in
Five inputs are provided for connecting ancillary devices:-
seconds. At the end of T1 the unit bleeps and leds 1 and 2 only
IN1 Remote OK buttons to supplement the front panel OK button. illuminate for T2 time in seconds. At the end of T2 the unit bleeps and
(Normally Open -close to acknowledge OK) reverts to leds 2 and 4 only. Adjust the pots accordingly and repeat
until time T1 and T2 minutes are correct as indicated in seconds.
IN2 To arm the MAYDAY from a keyswitch or other device. (Normally
Remove the link IN5 and the unit is set to operate in minutes.
Closed - open to start lone working)
The MAYDAY is a loneworker safety system. It is designed to give
audible and visual warning to prompt staff to take action by cancelling
a warning after a pre-determined period. Failure to take action will
result in a secondary alarm operating after a further pre-determined
period. This is used to raise an alarm to call for assistance which can
be either a simple sounder and visual indicator or a voice message
transmitted via a speech dialler (not supplied) via a landline. The two
time periods are separately adjustable. 20 - 60 minutes and 2 - 10
minutes respectively. The MAYDAY is mains powered and supplied
with a rechargeable 12v 0.8Ahr standby battery. The integral 12v
power supply will deliver 150ma for ancillary items.
Loneworker Scenarios where MAYDAY could be used
The notes below will assist in deciding how MAYDAY and ancillary equipment should be used and configured for any particular situation.
The first consideration should be; where are the responders located?
In this scenario a worker is only allowed in an area for a restricted work that the worker should have vacated the area and should be rescued.
period, perhaps 30minutes. This could be a freezer where reduced A MAYDAY and possibly an AV indicator within earshot of the responder are all
temperature for long periods may be harmful to health or an area with a that is needed, no other ancillary devices are needed though repeat AV
high concentration of fumes or very high temperatures. indicator(s) may be of benefit to the worker. In this scenario the OK button on the
The worker would arm the MAYDAY with the key to start the countdown front panel of the MAYDAY should be disabled (see below).
timer before entering the area. During the countdown period pre-alarms 1 x LMW2
are generated to gradually warn that time is running out. At the end of the
1 or more S1778PR AV units located near the responder (Optional)
restricted period a full alarm is given to alert responders outside the area
1 or more S1778PR AV units for the worker (Optional)
AV AV AV AV
T1 T2
MIN MAX
L1
+
L2
L8
+
L7
L3
+
L4
L6
+
L5
S
D
C
TPR
TPR
BATTERY FUSE
IN1 IN2 IN3 IN4 IN5 + + - - + + + + +
NC COM NO NC COM NO NC COM NO MM
RELAY 1 RELAY 2 RELAY 3
16 V
AC
BATTERY
CONNECTOR
IN1 is linked to
disable the OK button
Optional
S1778PR
Buzzer & Lamp Unit Optional
S1778PR
Buzzer & Lamp Unit
Sited in work area to give
visual indication of System
IN USE and audible
indication to vacate the
area. Sited near the responder to
give visual indication of
System IN USE and audible
indication of assistance
required.
BZ
+
L1
L2
BZ
+
L1
L2
To transformer in back box
To re-chargeable battery
in back box
Scenario 1
MAYDAY LMW2 Lone Worker Safety System
DWG No 60108 iss 4 Jun 12