Power Supply; Electrical Connections - DIEL MT 300 Manual De Uso

The device can be supplied with (220÷240) Volt AC ± 10% 50/60 Hz.
• Power supply (220÷240) Volt AC 50/60 Hz.
• First PTC sensors group (alarm)
• Second PTC sensors group (pre alarm)
• External input signal
• Delayed external input signal
• Alarm off
• Alarm on
• Pre alarm off
• Pre alarm on
• Fault or power supply off (norm. open after about 2 sec) Terminal 1,2
Recommended fuse (power side) 0.5 A.
Signal wire max 2.5 mm2, recommended 1.5 mm2.
On switch on the device, relays K2 and K3 immediately switch on, relay K1 switches
some 2 seconds late and keeps available the input signal to terminal n. 2 through
output to terminal n. 6.
This features allows to connect directly the release device to the alarm outputs
(terminal n. 3 and n. 5) without having undesired switching during the lighting phase, in
particular when the protection device is directly supplied by the machine to protect
(see example on TAB 1).
In normal functioning conditions there is only a red light signal (READY), the relays are
all excited.
In pre alarm conditions there is a yellow light signal (PRE ALARM), the relay K2 is
turned off.
In alarm conditions all the luminous signal are active, only K1 relay is excited.

POWER SUPPLY

ELECTRICAL CONNECTIONS

OPERATING DESCRIPTION
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ENGLISH
Terminal 8,9
Terminal 10,12
Terminal 11,12
Terminal 2
Terminal 6
Terminal 6,3
Terminal 6,4
Terminal 6,5
Terminal 6,7