Electrical Connections - TECSYSTEM NT538 ETH Instruction Manual

ELECTRICAL CONNECTIONS

NT538 ETH
4
1) Pt100 sensors (white-red-red)
2) Supply 85-260Vac-dc 50/60Hz.
Note: relay contact image in non-alarm condition, with the exception of the FAULT relay that switches: contacts 11-
12 open (NO) contacts 11-12 closed (NC) fault condition identification. Read the Alarms and Ventilation paragraph
on page 12 and see the opening of the fault contact.
.
RELAY CONNECTION EXAMPLE
Output relay with 10A-250Vac-res COS
Ф
COS =1.
3) Relays (FAN2-FAN1-ALARM-TRIP-FAULT)
4) RJ45 Ethernet output, Link-Activity LED, see
indication on page 30.
STOP
SYSTEM
ALARM
CONDITION AUDIO AND
VISUAL INDICATION
1MN0095 REV. 0
Ф
=1 contacts.
NT538 ETH
Pt100 CONNECTION EXAMPLE
Note: before connecting
sensors to the control unit, read
the Measurement signal transfer
paragraph on page 15.
1
2
3
the
11