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 A
X B
X C
X D
X E
 X F 
X 10 
X 11 
X 12 
X 13 Y 0
Y 1
Y 2
Y 3
Y 4
Y 5
Y 6
Y 7
Y 8
Y 9
Y A
Y B
Y C
Y D
Y E
 Y F 
Y 10
Y 11
Y 12
Y 13
Symbols
on the unit 
surface 
NX-X64DNX-Y64T
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40X 14 
X 15 
X 16 
X 17 
X 18 
X 19 
X 1A
X 1B
X 1C
X 1D
X 1E
X 1F
NC
NC
NC
NC
COM
COM
COM
COMY 14
Y 15
Y 16
Y 17
Y 18
Y 19
Y 1A
Y 1B
Y 1C
Y 1D
Y 1E
Y 1F
NC
NC
NC
NC
V DC+
 V DC+ 
 V DC- 
 V DC- 
 
						

							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 circuits on the outside of PLC
When a motor clockwise/counter-clockwise operation is controlled, 
provide an interlock circuit that prevents clockwise and counter-
clockwise signals from inputting into the motor at the same time.   
Emergency stop circuits on the outside of PLC
Install the emergency stop circuits outside the PLC to stop the power 
supply of the output device.
Start PLC after other devices (Start up sequence) 
The PLC should be operated after all of the I/O devices and the power 
equipments are energized. 
 Switch to RUN mode after the start of PLC.
 Use a timer circuit to delay the start of PLC. 
Watchdog timer
The watchdog timer is a program error and hardware error detection 
timer. It goes On when the scan time exceeds 640 ms. 
When the watchdog timer is activated, at the same time the ALARM 
LED lights, the ALARM contacts on the power supply module turn to 
On, all output modules are turned Off and the module is put in halted 
state. (The system is in a non-processing state that includes 
communications with programming tools as well.) 
 
						

							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
LC
 
Si
d
e
9
-p
i
n
 D
-
Su
b
 
ca
b
le
 
(
F
e
ma
le
)9
-p
i
n
 D
-
Su
b
 
ca
b
le
 
(
Ma
l
e)
RS-232C is available without 
connecting 485+, 485-, Vcc signals.Vcc
I
B
M-
P
C 
(
2
5
 p
i
n 
-
 
F
em
al
e
)P
LC
 
(
9 
p
i
n 
-
 
Ma
l
e)
 
						

							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 NX70 (NX70-CPU70p1 and NX70-CPU70p2) PLC 
use the flash memory. 
This function is widely used since it is easy to use, store, and transfer 
data, and is built in the NX70 PLC (NX70-CPU70p2).
EEPROM uses 29EE512 and has a minimum of 3000 times to write to 
flash memory. It should be noted that the memory is to be changed 
when exceeding the use of over 3,000 times.
Procedure
Backup using WinGPC
How to backup using WinGPC
Connect Online.
Save the completed program onto the PLC (Download: WinGPC => 
PLC).
Select the ‘EEPROM Backup (E)’ in the ‘Online’ menu.
DIP switch OFF 
Operates with the program stored 
in RAM using battery power.DIP switch ON
Erases the contents of RAM and 
copy the programs stored in 
EEPROM onto RAM to operate.
Starts ‘EEPROM backup’ or 
operates ‘EEPROM backup’ at 
WinGPC
RAM
OperationBattery
PLC Power ON
Program
stored in EEPROM
 
						

							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 if the grounding is triple grounded and 
separate from other device grounds.
Battery Check if the battery is installed into holder on the CPU 
module. 
 Check if the battery connector is connected to the 
CPU board
Emergency 
stop circuit Check if the emergency stop circuit for problems 
external to the PLC is wired accurately, and will 
immediately disconnect power on demand.
Power source Check if the power and voltage sources are within 
specifications. 
- For 110V ac (90 to 132V ac)
 - For 220V ac (180 to 264V ac)
 Check if the power to the AC input module is within 
specifications.
 
						

							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. (This clears the program on 
the PLC.)
Check I/O 
wiring Check the LED of the input modules and use the monitor 
function of WinGPC or HHP after test run the input device.
 Check the wiring of the output by turning the output On/Off 
using the monitor mode of WinGPC. (set CPU module to Run 
mode.)
Programming Input the program instructions using WinGPC. 
 Download the program from WinGPC into the CPU module, if 
any.
Te s t  r u n Set the mode switch of the CPU module to run. 
 Check if the Run LED is illuminated. 
 Check the sequence operation. 
Correct 
program Check and correct any program errors. 
Store 
program Store the program onto a floppy disk or similar storage 
device such as HDD.
 Print the program (ladder, mnemonic) and store it in a secure 
place.
 It is recommended to record the PLC types, program capacity, name of 
installation, and date for the recorded program. NOTE
 
						

							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