12
NT935-4
ASERIES
NT935-4 AD
1) Pt100 sensors (white-red-red) 3)
Relays (FAN2-FAN1-ALARM-TRIP-FAULT)
2) Supply 24-240Vac-dc 50/60Hz.
4)
Output 4.20 mA
5) Modbus RTU RS485 output
SC
R
E
E
N
R
E
D
R
E
D
W
HI
T
E
ELECTRICAL CONNECTIONS
5
1
2
3
4
1MN0095 REV. 0
Output relay with 10A-250Vac-res COS
Ф
=1 contacts.
COS
Ф
=1.
STOP
SYSTEM
AL
ARM
CONDITION AUDIO AND
VISUAL INDICATION
Pt100 CONNECTION EXAMPLE
Note: before connecting the
sensors to the control unit, read
the Measurement signal transfer
paragraph on page 16.
Note: relay contact image in non-alarm condition, with the exception of the FAULT relay that opens: contacts 11-12
open (NO) contacts 11-12 closed (NC) fault condition identification. Read the Alarms and Ventilation paragraph on
page 13 and see the opening of the fault contact.
RELAY CONNECTION EXAMPLE
