Samsung Ht As700 User Manual

71
Connecting 64-point unit (NX-X64D, NX-Y64T)
Mapping table between flat cable No. and I/O (64 points) 
NC: No Connection
NX-X64DN I C D
Product name Catalog 
numberSpecifications
Flat cable 
(1.5m)NX-CBLDCDC IN 64 points
(NX-X64D) 
NX-CBLTRTR OUT 64 points
(NX-Y64T)
Flat cable Flat cable
ATTENTIONBe careful that Connector (I) and connector (II) are opposite.
Symbols
on the unit 
surface 
NX-X64DNX-Y64T
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20X 0 
X 1 
X 2 
X 3 
X 4 
X 5 
X 6 
X 7 
X 8 
X 9 
X...

72
Safety Measures
Precautions regarding system design 
In certain applications, malfunction may occur for the following 
reasons: 
 The timing difference between opening and closing of the PLC 
power supply, the I/O modules and power equipment
 An operation time lag when a momentary power failure occurs 
 Abnormality in the PLC, external power supply, or other devices
In order to prevent a malfunction resulting in system shutdown choose 
the adequate safety measures listed in the following:
Interlock...

73
NX-CPU700p Processor Module 
Communications Specifications
 RS232C/RS485 cable wiring diagram: NX-CBLCPU02 (2m), NX-CBLCPU05 (5m)
Reference (25 pin to 9 pin) wiring diagram
Connection 
specificationRS485RS232CRemarks
Transfer distance (Max)1. 2  K m 1 5  m
Transmission speed38,400, 19,200, 9,600, 4,800 bps DIP switch setting
ProtocolHalf duplex asynchronous polling
ParityNo parity
Stop bit1 stop bit
Cable typeTwisted pair cable Use shield cable
NX-CBLCPU02 (2m)
NX
-
CB
L
CP
U0
5
 
(5
m)
I
B
M 
PC
 
P...

74
EEPROM Backup
Whats EEPROM backup?
EEPROM (Electric Erase Programmable Read Only Memory) can retain 
the data when the power is turned off, and erase or record data when 
the power is turned on. This function allows you to retain the PLC 
program when the power is turned off. And it also erases an existing 
program and records a new one when correcting or storing a program 
after turning on the power. 
Applicable models
The types of EEPROM can be defined by its characteristics. 
The CPUs for OE M
AX...

75
 5
Test Run and Troubleshooting
Test Run Precautions
Before installing the I/O wiring of the PLC and supplying power, check 
the following items.
ItemWhat to check
The connection of 
the power cable 
and the 
I/O cables Check if the wiring is secured.
 Check if the terminal screws are tightened.
 Check if the parts of connectors are properly joined.
 Check if the I/O modules are firmly fixed.
 Check if the power cable is securely connected.
 Check if the cable size is correct.
Grounding Check...

76
Test Run Procedure
When the PLC has been installed and wired, begin test run in the 
following order.
ItemWhat to check/do
Supply power Check if the input voltage of the power supply module is 
within specifications. 
 Check if the power voltage for the I/O modules is within 
specifications. 
 Connect WinGPC to the CPU module. (Set the CPU module to 
the PROG mode.) 
 Turn on the power source. 
 Check the LED display of the power supply module.
Initialize 
memory Initialize the PLC using WinGPC....

77
Test Run Flow Charts
System check flow chart
When you encounter problems during startup or test run, first of all, 
figure out the problems thoroughly. Check if the problems can be 
reproduced, and analyze the relevance to other devices. Then refer to 
the system check flow chart. 
 

78
Power check flow chart
 

79
Run check flow chart
 

80
Error check flow chart