HPM XLTX770/1 Instructions
Programmable time delay - 3 wire
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Cat XLTX770/1, XLTX770/1NC, XLTX770/2, XLTX770/2NC, TX770/1RC, TX770/1RCNC, TX770/2RC and TX770/2RCNC
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
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.
Understanding the function of the switch by its catalogue number
RC means remote
mounted version
XL means
(not on a wall plate).
mounted on an
An additional push
Excel wall plate
button is required
with an in-built
push button
XL TX 770/ 1 A RC NC
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.
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".
NC means that the contacts are
normally closed, and opens
during the programmed time. If
not NC the unstated meaning is
NO (normally open)
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
Programmable Time Delay - 3 wire
Wiring
ACTIVE
MOMENTARY
PUSH BUTTONS
(770XM, EM770X, NX770)
NEUTRAL
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.
ACTIVE
NEUTRAL
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).
ACTIVE
(769PM,
EM770DP)
LIGHT
NEUTRAL
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.
Instructions
LOAD
ACTIVE
CONTROL
NEUTRAL
LOAD
(TX770/1, TX770/2)
LOAD
770M
ACTIVE
(EM770)
CONTROL
NEUTRAL
LIGHT
FAN
(TX770/1, TX770/IRC)
LOAD
(769PM,
EM770DP)
ACTIVE
CONTROL
NEUTRAL
LIGHT
FAN
(TX770/1, TX770/IRC)
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Summary of Contents for HPM XLTX770/1
- Page 1 Programmable Time Delay - 3 wire Cat XLTX770/1, XLTX770/1NC, XLTX770/2, XLTX770/2NC, TX770/1RC, TX770/1RCNC, TX770/2RC and TX770/2RCNC Instructions Specifications (at 25˚C) Wiring Connection type: 3 wire (neutral required) ACTIVE Supply voltage: 230-240V a.c. 50Hz LOAD MOMENTARY Max load: 2400W (incandescent) PUSH BUTTONS...
- Page 2 90 seconds. Warranty Customer Service HPM Legrand will honour all statutory guarantees that you For all Customer Service and Technical Support as a consumer are entitled to rely upon under the Australian please call Monday to Friday during business hours.