TECSYSTEM T119 DIN, Инструкция по эксплуатации

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7
T119DIN
FRONT
1) Universal unit supply 24-240 Vac-dc 50/60Hz. 3) Device operation LED
(ON-L1-L2-FAN -FAULT)
2) Relays (ALARM/FAULT- ALL2) 4) L1 - L2 - FAN PTC sensor lines
1
2
3
4
POWER SUPPLY
The T119 DIN control unit has UNIVERSAL power supply, i.e. it can be supplied by 24 to 240 Vac-Vdc, 50/60 Hz
irrespectively of polarity in Vdc (terminals 40-42).
This is obtained thanks to the use of a tested power supply unit, newly designed and manufactured, that frees
installers from worrying about the correct Vac or Vdc supply.
The ground cable must always be connected to terminal 41.
When the unit is supplied directly by the secondary of the transformer to protect, it can be burnt out by strong overvoltages.
This happens if the main switch is closed and the transformer has no load (blank test).
The above-mentioned problems are much more evident when the 220 Vac voltage is taken directly from the
transformer secondary bars and there is a fixed capacitor battery to phase the transformer itself.
If an existing control unit must be replaced with a new one, to guarantee its correct and safe operation, the
sensor/relay/supply connecting terminals must be replaced with the new terminals supplied.
To protect the control unit from line overvoltages, we suggest using the PT-73- 220 electronic discharger, designed by
TECSYSTEM S.r.l. for this specific purpose. As an alternative we suggest using supply voltages from 110 Vac or, much
better, 110 Vdc.
1MN0109 REV. 0
LED SIGNAL:
LED ON : "ON" The device is powered correctly, "OFF" The device is not powered correctly
L1 LED:
"ON"
L1 trip threshold exceeded, "OFF" temperature below the L1 trip threshold.
L2 LED:
"ON"
L2 trip threshold exceeded, "OFF" temperature below the L2 trip threshold.
FAN LED:
"ON"
FAN trip threshold exceeded, "OFF" temperature below the FAN trip threshold.
FAULT LED - L1 LED - L2 LED - FAN LED flashing, see
PTC SENSOR FAULT DIAGNOSIS on page 10.