IL05003012E.pdf
Responding Time
Adjustable 0~20ms, Default10ms, selected through D1020)
AC Input Point Electrical Specification
Rated Input Voltage
100 to 120 VAC (-15%~+10%)
Maximum Input Current
Less than 20 mA
Minimum ON Voltage
80 VAC
Maximum OFF Voltage
30 VAC
Output Point Electrical Specification
Output Type
Relay-R
Transistor-T
Current
Specification
1.5A/1 point (5A/COM)
0.3A/1 point @ 40 ; When the output of Y0 and Y1 is high-speed
pulse, Y0 and Y1 = 30mA
℃
Voltage
Specification
Below 250VAC,
30VDC
30VDC
Maximum Loading
75VA (Inductive)
9W/1 point
When the output of Y0 and Y1 is high-speed pulse,
Y0 and Y1 = 0.9W (Y0 = 32kHz, Y1 = 10kHz), Y0
can be 50Khz using D registers
90 W (Resistive)
Responding Time
About 10 ms
Off On 20us
→
→
On Off 30us
Y0 and Y1 are specified points for high-speed pulse
4
MODEL NAME & I/O CONFIGURATION
Model
Input / Output
Profile
Reference
I/O Configuration
Power
Input Unit
Output Unit
Point
Type
Point
Type
ELC-PC12NNAR
24VDC
8 100~120VAC 4
Relay
S/S
X0
X1
X2
X3
X4
X5
X6
X7
C0
Y0
C1
Y1
C2
Y2
Y3
COM
X0
X1
X2
X3
X4
X5
X6
X7
C0
Y0
C1
Y1
C2
Y2
Y3
DC
AC
input
input
ELC-PC12NNDR 8
DC Sink or
Source
4 Relay
ELC-PC12NNDT 8
4
Transistor
5
INSTALLATION & WIRING
5.1 Installation of the DIN rail
The ELC can be secured to a cabinet by using the DIN rail that is 35mm high with a depth of 7.5mm. When
mounting the ELC on the DIN rail, be sure to use the end bracket to stop any side-to-side motion of the ELC, thus
to reduce the chance of the wires being pulled loose. At the bottom of the ELC is a small retaining clip.
To remove it, pull down the retaining clip and gently pull the ELC
away from the DIN rail. As shown on the right:
When installing the ELC, make sure that it is installed in an
enclosure with sufficient space (as shown on the right) to its
surroundings so as to allow heat dissipation.
D
D
D
D
E
L
C
D>50mm
5.2 Wiring
22-16AWG
<1.5mm
1. Please use 22-16AWG (1.5mm) wiring (either single or multiple core) for
I/O wiring terminals. The specification for the terminals is as shown on the
left. ELC terminal screws should be tightened to 1.95 kg-cm (1.7 lb-in). Use
Copper Conductor Only, 60/75 °C.
2. I/O signal wires or power supply should not run through the same
multi-wire cable or conduit.
5.3 Power Input Wiring
1. When DC voltage is supplied to the ELC, make sure the power is at terminals 24VDC and 0V (power range is
20.4VDC~28.8VDC). When voltage is lower than 20.4VDC, ELC will stop operating, all outputs will turn OFF
and the ERROR LED will flash continuously.
2. If the power-cut time is less than 10ms, the ELC still operates unaffectedly. If the power-cut time is too long or
the power voltage drops, the ELC will stop operating and all the outputs will be Off.
DC Input Type
2A
20.4V~28.8V
DC/DC
+5V
S/S
X0
X1
X2
24V
0V
GND
ELC
5.4 Input Point Wiring
There are two types of DC type wiring: SINK and SOURCE, defined as follows:
SINK Mode
SOURCE Mode
+24V
0V
DC Power Supply
S/S
X0
X1
X2
Sink mode
+24V
0V
DC Power Supply
S/S
X0
X1
X2
Source mode
5.5 AC
Type
Wiring
Input Circuit Connection
110V AC Input Specifications
COM
X0
X1
X2
ELC-12PCNNAR
85~132VAC
50/60Hz
Input voltage
100~120VAC (-15%~+10%)
Input impedance
21Kohm/50Hz 18Kohm/60Hz
Input current
4.7mA 100VAC/50Hz
6.2mA 110VAC/60Hz
OFF ON/ON OFF
→
→
80V 3.8mA/30V 1.7mA
Response time
OFF ON:30ms ON OFF:50ms
→
→
Circuit isolation/Operation indication
Photocoupler/LED On
5.6 Output Point Wiring
Output point wiring
Y0
RY
LED
C0
LOAD
POWER
ELC-**-**NN*R
RELAY OUTPUT
1. ELC-PC series have two output modules, relay and transistor. See
“Function Specifications” for their specifications.
2. Please watch out the connection of common terminals whilewire the
outputs. For example, when wiring ELC-PC12NNDR/T,output
terminal Y0 uses one common terminal C0, Y1 uses C1, and Y2~Y3
share C2, as shown below:
C0 Y0
Y1
Y2
C1
Y3
C2
RELAY
C0 Y0
C2 Y2 Y3
C1 Y1
Transistor
When output points are enabled, their corresponding indicators on
the front panel will be on.
3.
Isolation circuit: The optical coupler is used to isolate signals
between the circuit inside ELC and input modules.
Y0
LED
C0
TRANSISTOR OUTPUT
LOAD
ELC-**-**NN*T
< 0.5A
T
ri
g
g
er c
irc
ui
t
The Relay Output Circuit Wiring
2
3
1
5
C0 Y0
Y1
C1
Y2 Y3
C2
4
MC1
9
3
2
7
8
6
1 Flywheel diode: To extend the life span of contact*1
2 Emergency stop: Uses external switch
3 Fuse: Uses 5 ~ 10A fuse at the shared terminal of output contacts
to protect the output circuit.
4 Varistor: To reduce the interference on AC load*2:
5 Empty terminal: no in use
6 DC power supply
7 AC power supply
8 Incandescent light (resistive load)
9 Manually exclusive output: Uses external circuit and forms an interlock, together with ELC internal program, to ensure safe
protection in case of any unexpected errors.
*3
*1: For switching direct current on inductive loads, a reverse-current protection diode should be installed in parallel
with the load. The relay contact life decreases significantly if this is not done.
The reverse-current protection diode needs to satisfy the following specifications.
- The diode is rated for maximum reverse voltage of 5~10 times the load voltage.
- The forward current is more that the load current
*2: For switching AC on inductive loads, a surge absorber (0.1uF + “100ohm to 120ohm”) should be installed in
parallel with the load. The relay contat life decreases significantly if this is not done.
*3: Ensure all loads are applied to the same side of each ELC output, see above figure. Loads which should
NEVER simultaneously operate(e.g. direction control of a motor), because of a critical safety situation, should not
rely on the ELC’s sequencing alone. Mechanical interlocks MUST be fitted to all critical safety circuits.
The Transistor Output Circuit Wiring
MC1
2
3
1
C0 Y0
Y1 C2 Y2 Y3
4
5
3
4
C1
1 DC power supply
2 Emergency stop
3 Circuit protection fuse
4 Flywheel diode + inductive load
5 Manually exclusive output: Uses external circuit and forms an
interlock, together with ELC internal program, to ensure safe
protection in case of any unexpected errors. *1
*1: Transistor outputs use internal zener diode(39V) as protection circuitry. When driving the inductive load with
transistor output, a reverse-current protection diode can be installed in parallel with the load if necessary.
The reverse-current protection diode needs to satisfy the following specifications.
- The diode is rated for maximum reverse voltage of 5 to 10 times the load voltage.
- The forward current is more than the load current.
6
TRIAL RUN
☼
Power Indication
The “POWER” LED at the front of the ELC will be lit (in green) if the power is on.
■
Low Battery Voltage Indication
There is also a “BAT.LOW” LED at the front of the ELC. When the LED is on, it indicates that the battery voltage is
insufficient. Please change the battery (within 3 minutes) as soon as possible; otherwise the user programs and the
data in latched area may be lost.
■
Preparation
1. Prior to applying power, please verify that the power lines and the input/output wiring are correct. And
be advised not to supply AC110V or AC220V into the I/O terminals, or it might short-circuit the wiring
and would cause direct damage to the ELC.
2. After using the peripheral devices to write the program into the ELC and that the ERROR LED of the
ELC is not on, it means that the program in use is legitimate, and it is now waiting for the user to give
the RUN command.
3. Use ELC-HHP to execute the forced On/Off test of the output contact.
■
Operation & Test
If the “ERROR” LED of the ELC is not blinking, use RUN/STOP switch or the peripheral devices (ELC-HHP or
ELCSoft) to give the RUN command, and the RUN indicator will then be on. If the “RUN” LED is not on, it indicates
that there is no program inside the ELC.
ELC-HHP could be utilized to monitor the settings and the registered values of the timer (T), the counter (C) and the
data register (D) during operation, and moreover, to force the output contacts to conduct the On/Off action. If the
ERROR LED is on (but not blinking), it means that the setting of the user’s program has exceeded the preset
overtime limit. At this time, please turn RUN/STOP switch to STOP and get program time-out address from special
register D1008. (it is recommended to improve by WDT command)
■
ELC Input/Output Reaction Time
The total reaction time from the input signal to the output operation is calculated as follows:
Reaction Time = input delay time + program scan time + output delay time
Input delay time
Factory setting is 10ms. Please refer to special registers D1020~1021.
Program scan time
Please refer to the usage of special register D1010.
Output delay time
Relay module: 10ms. Transistor module: 20~30us.
■
Basic Commands and Application Commands of the ELC:
1. The basic commands and the application commands of the ELC of this series are totally applicable to the
ELC. Refer to the ELC Technique Application Manual for relevant basic commands and application
commands.
2.
The ELC-HHP handheld programming panel and the ELCSoft (Windows version) editing program of the
ladder diagram are both good for use with the ELC. Also, the ELC could connect with the
ELC-PC12NNDR/T,ELC-PC12NNAR through specific transmission wire to execute the program
transmission, the ELC control and the program monitoring.
7
TROUBLESHOOTING
Judge the errors by the indicators on the front panel. When errors occurred on ELC, please check:
☼
“POWER” LED
There is a “POWER” LED at the front of the ELC. When the ELC is powered On, the green LED light will be on.
☼
ELC “RUN” LED
Identify the status of the ELC. When the ELC is in operation, this light will be on, and users could thus use
ELC-HHP or the editing program of the ladder diagram to give commands to make the ELC “RUN” or “STOP”.
☼
“ERROR” LED
If incorrect programs are input to the ELC, the indicator will blink. Please check D1004(Error code) and
D1137(Error step number).
When the ERROR LED is on (not blinking), it indicates that the execution time of the program loop has
exceeded the time-out setting (set by D1000). Please turn the ELC RUN/STOP switch to STOP, and find out the
address of the time-out program by special data register D1008. ”WDT”. After completing modifying program,
user only need to reload program and this LED will be off at this moment. Once the LED still lights, please turn
off the power and check if there is interference or any conductive material in ELC.
☼
“BAT.LOW” LED
When the battery voltage is low, the “BAT.LOW” LED will be on, please change the battery within 3 minutes to
retain the ELC’s internal user programs and data).
☼
“Input/Output” LED
The On/Off signals of the input point could be displayed through the “Input” LED. “Output” LED indicates if the
output signals are On or Off.
