ABB ACS800-07, Руководство пользователя, Страница: 34 / 42

I/O options (L)
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The thermistor relay provides terminals for the measuring circuit (series-connected
the PTC thermistors) and terminals of one normally open contact. The relay can be
reset by pressing its reset button or the resetting can be wired externally.
The customer connects PTC sensors to the thermistor relay and the terminals of the
auxiliary relay of the normally open contact, for example, to
• main breaker control circuit of the drive for opening the breaker in case of motor
overtemperature or
• appropriate digital input of the drive for tripping the drive and generating a fault
message in case of motor overtemperature or
• customer control circuit.
More information: See the firmware manual for parameter settings and connection
possibilities and the circuit diagrams delivered with the drive for the actual wiring.
Example connection diagram
Pt100 relays (+3L506, +5L506, +8L506)
What the option contains
The standard Pt100 relay option includes three (+3L506), five (+5L506) or eight
(+8L506) Pt100 temperature monitoring relays and an auxiliary relay wired to a
terminal block. Other numbers of Pt100 relays must be ordered as application
engineered.
AC-15, 240 V, 3 A