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NT935-4
TECSYSTEM NT935-4 User Manual
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3
NT935-4
S
E
R
IE
S
PAGE
8)
RS485
MOD
BUS
(only
for
NT93
5-4 AD
)
…….……………………
……….
19
INTR
ODUCT
ION
TO
TH
E MOD
BUS
INSID
E
MODUL
E
…………………………
………..
—
OPER
ATING
NOTE
S
…………………………
………..
—
DATA
TRAN
SMIS
SION
ON
MOD
BUS N
ET
W
OR
K
…………………………
………..
—
RS485
ELE
CTRIC
AL CONN
ECT
IONS
…………………………
………..
—
DATA
FRAM
E
…………………………
………..
—
DATA
PAC
KET
…………………………
………..
—
FUNC
TION
CODE
…………………………
………..
20
CODE
3(10)
.
…………………………
………..
—
CODE
16(1
0).
…………………………
………..
—
NOTE
S FOR
REMO
TE PR
OGRA
MMING
…………………………
………..
—
ERROR
COD
ES
…………………………
………..
21
ILL
EGAL DA
TA
…………………………
………..
—
POLL
ING FR
EQUE
NCY
…………………………
………..
—
MOD
BUS M
APPING
TABL
E
…………………………
………..
22
9)
FA
IL SA
FE FUN
CTIO
N
…………………………
………..
27
10)
OUT
PUT 4
.20mA
(only
for N
T935-4
AD)
…………………………
………..
—
11)
TE
CHNIC
AL
SPECIF
ICATI
ONS
OF
TH
E EX
TENSION
CABLE
FOR
Pt10
0
…………………………
………..
—
12)
FCD
FUNC
TION
…………………………
………
..
28
13)
W
ARR
ANTY
COND
ITION
S
…………………………
………..
—
14)
TROU
BLE
SHOOT
ING
…………………………
………..
29
15)
EQU
IPMEN
T DI
SPOSAL
…………………………
………..
—
16)
US
EFUL C
ONTAC
TS
…………………………
………..
—
17)
UL
S
PECIF
ICATION
AND
RAT
INGS
…………………………
………..
30
2
4
Table of Contents
Table of Contents
2
Safety Requirements
4
Accessories
5
Technical Specifications
6
Front Panel
8
Display
9
Operating Program Control
9
Notes on Scan and man Functions
9
Led Test
9
Alarm Relay Test
9
Alarm Relay Silencing
9
Mounting
10
Electrical Connections Nt935-4 Basic
11
Nt935-4 Ad Back
12
Power Supply
13
Alarms and Ventilation
13
Fault and Reset Message Sequence
13
Programming
14
Programming Notes
16
Temperature Sensors
16
Measurement Signal Transfer
16
Temperature Sensor Diagnostics
17
Voting Function
17
Programmed Data Diagnostics
17
Temperature Diagnostics
18
Cooling Fan Control
18
Fan Test
18
RS485 MODBUS (Only for NT935-4 AD)
19
Introduction to the Modbus Inside
19
Operating Notes
19
Data Transmission on Modbus Network
19
Rs485 Electrical Connections
19
Data Frame
19
Data Packet
19
Function Code
20
Code 3
20
Notes for Remote Programming
20
Error Codes
21
Illegal Data
21
Polling Frequency
21
Modbus Mapping Table
22
Fail Safe Function
27
Fcd Function
28
Troubleshooting
29
Ul Specification and Ratings
30
4
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TECSYSTEM NT935-4 Specifications
General
Brand
TECSYSTEM
Model
NT935-4
Category
Controller
Language
English
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