HPM XLTX770/1 User manual

Specifications (at 25˚C)
Connection type: 3 wire (neutral required)
Supply voltage: 230-240V a.c. 50Hz
Max load: 2400W (incandescent)
2400VA (fluorescent)
Operating temperature range: 0°C to + 50°C
Programmable time delay period: 1 sec to 239 hrs
Factory setting: 10 mins
Features
Wiring
Programmable Time Delay - 3 wire
Cat XLTX770/1, XLTX770/1NC, XLTX770/2, XLTX770/2NC, TX770/1RC, TX770/1RCNC, TX770/2RC and TX770/2RCNC
Instructions
This time delay switch is capable of switching loads for any
programmable time from 1 second to 239 hours and it does this with
incredible accuracy without the need of a battery or supercapacitor. This
accuracy is based on the timing reference used: the 50Hz frequency.
Applications include lighting, heating, air conditioning and other
machinery in commercial, industrial and institutional premises with
resultant economies because the devices are turned on only when they
are required and can not be inadvertently left on.
The push button is illuminated for easy night time operation.
XL TX 770/ 1 A RC NC
XL means
mounted on an
Excel wall plate
with an in-built
push button
1 means that if button is pressed whilst ‘on’, it
will restart the sequence from the beginning.
2 means that if pressed whilst ‘on’ it will switch
the load off until the button is pressed again.
3 means that the switch is a repeat cycle timer.
A. means it is a 2 wire
switch and does not
need a neutral wire. If
A is not indicated it is a
3 wire device
NC means that the contacts are
normally closed, and opens
during the programmed time. If
not NC the unstated meaning is
NO (normally open)
RC means remote
mounted version
(not on a wall plate).
An additional push
button is required
Understanding the function of the switch by its catalogue number
Operation
As soon as the button is pressed, the load turns on. However, timing
does not start until the button is released. This is called “off-delay”, and
the time delay switch operates this way by default. When the time delay
period expires, the load turns off.
The time delay switch can be reprogrammed so that timing starts as
soon as the button is pressed, rather than when it is released. This is
called “on-delay”. Refer to “How to program” for how to activate
“on-delay”.
LOAD
ACTIVE
CONTROL
NEUTRAL
ACTIVE
NEUTRAL
LOAD
MOMENTARY
PUSH BUTTONS
(770XM, EM770X, NX770)
(TX770/1, TX770/2)
Figure 1. Normal wiring diagram
Optional momentary push buttons (NX770M or 770XM) can be connected
between the Active and Control terminals. These perform the same
function as the push button on the main product.
LOAD
ACTIVE
CONTROL
NEUTRAL
ACTIVE
NEUTRAL
FANLIGHT
770M
(EM770)
(TX770/1, TX770/IRC)
Figure 2. Fan delay timer
In this application, a Remote (RC) time delay switch is used, and a 770M
rocker switch is used in place of the momentary push button. When
the switch is turned on, both the light and fan turn on. When the switch
is turned off, the light will turn off immediately but the fan will keep
running for the programmed delay period. Note that this will only work
when the unit is set to “off-delay” (the default setting).
LOAD
ACTIVE
CONTROL
NEUTRAL
ACTIVE
NEUTRAL
FANLIGHTLIGHT
(769PM,
EM770DP)
(769PM,
EM770DP)
(TX770/1, TX770/IRC)
Figure 3. Fan delay timer with multiple lights
When multiple light switches are used to control the one fan, double
pole switches (769PM) must be used, otherwise all the lights will turn
on when one switch is turned on.
Installation Note:
1) The maximum recommended length of the control wire to remote
push buttons is 100m.
2) Power factor correction capacitors can be connected downstream of
the time delay switch
WARNING
Do not megger test. Megger tester may damage unit.

Warranty
HPM Legrand will honour all statutory guarantees that you
as a consumer are entitled to rely upon under the Australian
Consumer Law against a manufacturer including a guarantee
that (any products HPM Legrand has manufactured or
imported/the products which are described in this Instruction
Manual) XLTX770/1, XLTX770/1NC, XLTX770/2, XLTX770/2NC,
TX770/1RC, TX770/1RCNC, TX770/2RC and TX770/2RCNC
products are of acceptable quality.
To make a claim under any statutory guarantee (or other
warranty) you should first contact the supplier, contractor or
retailer from whom you purchased the products.
Customer Service
For all Customer Service and Technical Support
please call Monday to Friday during business hours.
HPM Legrand Australia
1300 369 777
www.hpmlegrand.com.au
HPM Legrand New Zealand
0800 476 009
www.hpmlegrand.co.nz
ABN: 31 000 102 661
25537A
How to program
The heart of this time delay switch is a photo electric cell which is
influenced, in the programming mode, by changes of light intensity. For
instance in a semi dark indoor situation, a torch being flashed at the
switch will programme it. Outdoors or in brighter areas it may be the
opposite. Your hand or a box placed over the switch and removed in ap-
proximately 2 second intervals will also put the switch into the program
mode required to set the ‘time on’. Either way the switch should be
subject to approximately 2 seconds on, 2 seconds off. Let’s call the ‘on’
periods - ‘flashes’.
15 minutes to set the program.
Setting the unit into program mode can only be done
within 15 minutes of the unit receiving power. So it may
be required to switch the circuit off from the MCB for a
few seconds and then switch the MCB back on.
You now have 15 minutes to set the programme
Choosing the number of seconds, minutes or hours of
time delay:
Firstly you need to get into programme Mode 1. To do
this, subject the unit to 3 flashes. You will know if you
are in program Mode 1 because the switch will show a
constant green light plus a flashing red one. If you see
these lights you are in Mode 1.
To set the amount of time that you wish the load to stay
on, press the button the number of times correspond-
ing to your ‘time on’. For instance if you’re setting 10
seconds, press the button ten times. If you’re setting
10 hours, press the button ten times. If you’re setting 3
minutes, press the button three times. It doesn’t mat-
ter in Mode 1 whether it’s hours, minutes or seconds
- it’s just a number
10 seconds after you’ve entered your number, the relay
will turn on for 4 seconds, then off. The switch will also
flash the new setting for 90 seconds.
Getting into Mode 2.
To do this, subject the unit to 6 flashes. You will know if
the switch is in Mode 2 because it will show a constant
red light and a flashing green one (the opposite to
Mode 1). You now need to tell the switch what the
number that you have programmed into it means.
If that number is to be seconds, press the button once.
If you want MINUTES, press the button twice. If you
want HOURS, press the button three times.
Say you wanted 2 hours & 15 minutes you would need
to convert hours into minutes to come up with a total
minutes figure of 135. That’s the number of presses
that you need in Mode 1. And you need to press twice
for minutes in Mode 2.
10 seconds after the last press, the unit will automatically save the new
timing and turn the relay on for 4 seconds, then off again. It will also
flash the new setting for 90 seconds. The next press will commence the
timing cycle from the beginning of the ‘on’ period.
On-Delay & Off-Delay
The time delay switch is factory set for “off-delay” (see operation).
To change to “on-delay”, when in programming Mode 2, on the last
button press and hold the button down for at least 10 seconds until
the relay clicks on.
Programming notes
■The units are factory set in Mode 1 at 10. If this number is
satisfactory, you then proceed straight to Mode 2.
■After entering either program mode, pressing the button once or
more will override the previous setting and cannot be reversed.
■After entering either program mode, and not pressing the button, the
unit will time out after 1 minute and no setting will be changed.
■All new program settings are permanently stored in a non-volatile
memory, immune to power failure. There is no need for back-up
batteries.
■The units may be programmed on the bench prior to going on-site if
more convenient