Hoyles MAYDAY LMW2 Manual

MAYDAY LMW2 Loner Worker Safety System

Specification

The MAYDAY is a lone worker 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. The unit is
housed in a plastic enclosure approx. 125w x 175h x 55d (mm).
The MAYDAY has the following integral indications and controls:-
1. An On Off key switch to arm the unit.
2. An OK button to restart the countdown timer and reset the alarm.
3. A green Power On LED.
4. Four red System Active countdown LEDs.
1. 5 . An integral piezo sounder. (85db at 10cm)
5. Two adjustable countdown timer controls. These are fitted internally and only used during the installation set-up.
Five inputs are provided for connecting ancillary devices:
IN1 Remote OK buttons to supplement the front panel OK button. (Normally Open -close to acknowledge OK)
IN2 To arm the MAYDAY from a key switch or other device. (Normally Closed - open to start lone working)
IN3 Input from a movement detector such as a PIR (Normally Closed -open on detection - i.e. 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 key switch 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).
Eight outputs are provided for remote indications:
LED1 - 4 follow the LEDs on the front panel.
LED5 Remote buzzer, follows internal buzzer.
LED6 Remote LED, all indications.
LED7 Remote LED to indicate T2 has run out.
LED8 Remote power LED.

Timer Set-Up Procedure

With IN2 closed (or key switch OFF), link out IN5, LED's 2 and 4 only illuminate. Set T1 and T2 pots approx. (Best guess).
Press the OK button, the unit bleeps and LEDs 1 and 3 only illuminates for T1 time in seconds. At the end of T1 the unit
bleeps and LEDs 1 and 2 only illuminate for T2 time in seconds. At the end of T2 the unit bleeps and 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. Remove the
link IN5 and the unit is set to operate in minutes.
DWG 60108
Hoyles Electronic Developments Ltd
Sandwash Close, Rainford, St Helens, WA11 8LY, UK
www.hoyles.com
sales@hoyles.com
+ 44 (0) 1744 886600