Eaton ELC2 Series Bedienungsanleitung

ELC2 Series

Programmable Logic Controllers

INSTRUCTION SHEET

[Applicable Controllers]

ELC2-PA20AADR

ELC2-PA20AADT

ELC2-PA20AADP

1-PA21

2014

IL050004EN

- 1 -

The ELC2-PAs include three 20-point (8DI + 6 DO + 4AI + 2AO) controllers. An

ELC2-PA series provides various instructions, and the size of the program memory in it

is 16k steps. It is able to connect to all ELC series extension models, including digital

input/output (max. 224 I/O points) and analog modules as well as all kinds of new

high-speed extension modules. Two groups of high-speed (100kHz) pulse outputs, and

one new two-axis interpolation instruction are included. ELC2-PA series controllers are

small in size, and can be installed easily.

EN ELC2-PA is an OPEN-TYPE device. It should be installed in a control cabinet free

of airborne dust, humidity, electric shock and vibration. To prevent

non-maintenance staff from operating ELC2-PA, or to prevent an accident from

damaging ELC2-PA, the control cabinet in which ELC2-PA is installed should be

equipped with a safeguard. For example, the control cabinet in which ELC2-PA is

installed shall require a tool or key to be opened..

EN DO NOT connect AC power to any of I/O terminals, otherwise serious damage

may occur. Please check all wiring again before ELC2-PA is powered up. After

ELC2-PA is disconnected, Do NOT touch any terminals in a minute. Make sure

that the ground terminal on ELC2-PA is correctly grounded in order to prevent

electromagnetic interference.

FR ELC2-PA est un module OUVERT. Il doit être installé que dans une enceinte

protectrice (boitier, armoire, etc.) saine, dépourvue de poussière, d’humidité, de

vibrations et hors d’atteinte des chocs électriques. La protection doit éviter que

les personnes non habilitées à la maintenance puissent accéder à l’appareil (par

exemple, une clé ou un outil doivent être nécessaire pour ouvrir a protection).

FR Ne pas appliquer la tension secteur sur les bornes d’entrées/Sorties, ou l’appareil

ELC2-PA pourra être endommagé. Merci de vérifier encore une fois le câblage

avant la mise sous tension du ELC2-PA. Lors de la déconnection de l’appareil, ne

pas toucher les connecteurs dans la minute suivante. Vérifier que la terre est

bien reliée au connecteur de terre afin d’éviter toute interférence

électromagnétique.

Product Profile

Direct fastening hole

Nameplate

I/O terminal

COM1 port

(RS-232)

Left-side module

connection port

DIN rail clip

RUN/STOP switch

I/O indicator

VR0/VR1

POWER/RUN/ERROR/USB indicator

COM1 communication

indicator (RS-232)

COM2 communication

indicator (RS-485)

USB port

V2+

IO1

VO1

IO0

VO0

I3+

VI3-

VI2-

V3+

I2+

VI0-

I1+

VI1-

V1+

V0+

I0+

3PIN removable terminal

(standard component) I/O module

positioning hole

I/O module

connection port

COM2 port

(RS-485)

Power input

port I/O module fastening clip

Mounting slot

(35mm)

Power input connection

cable (standard component)

Specifications

Item Specification

Control method Stored program, cyclic scan system

I/O processing method Batch processing method (when END

instruction is executed)

- 2 -

Item Specification

Execution speed LD instructions – 0.54s, MOV instructions –

3.4s

Program language Instruction List + Ladder + SFC

Program capacity 15872 steps

X External inputs X0~X377, octal number system,

256 points max.

Y External outputs Y0~Y377, octal number system,

256 points max.

Tot al

480+32

I/O(*3)

General

M0~M511, 512 points (*1)

M768~M999, 232 points (*1)

M2000~M2047, 48 points (*1)

Latched M512~M767, 256 points (*2)

M2048~M4095, 2048 points (*2)

M Auxiliary

relay

Special M1000~M1999, 1000 points,

some are latched

Tot al

4096 points

T0~T126, 127 points (*1)

T128~T183, 56 points (*1)

T184~T199 for Subroutines, 16

points (*1)

100ms

(M1028=ON,

T64~T126: 10ms) T250~T255(accumulative), 6

points (*1)

T200~T239, 40 points (*1)10ms

(M1038=ON,

T200~T245: 1ms)

T240~T245(accumulative), 6

points (*1)

T Timer

1ms

T127, 1 points, (*1)

T246~T249(accumulative), 4

points (*1)

Tot al

256 points

C0~C111, 112 points (*1)

C128~C199, 72 points (*1)

16-bit count up

C112~C127, 16 points (*2)

C200~C223, 24 points (*1)

32-bit count up/down C224~C232, 9 points (*2)

Tot al

233 points

C235~C242, 1 phase 1 input, 8

points (*2)

Software C233~C234, 2 phase 2 input, 2

points (*2)

C243~C244, 1 phase 1 input, 2

points (*2)

C245~C250, 1 phase 2 input, 6

points (*2)

C Counter

32-bit

high-speed

count

up/down Hardware

C251~C254 2 phase 2 input, 4

points (*2)

Tot al

22 points

Initial step point S0~S9, 10 points (*2)

Zero point return S10~S19, 10 points (use with

IST instruction) (*2)

Latched S20~S127, 108 points (*2)

General S128~S911, 784 points (*1)

Bit

contacts

S Step

point

Alarm S912~S1023, 112 points (*2)

Tot al

1024 points

T Current value T0~T255, 256 words

C0~C199, 16-bit counter, 200 words

C Current value C200~C254, 32-bit counter, 55 words

General

D0~D407, 408 words (*1)

D600~D999, 400 words (*1)

D3920~D9799, 5880 words (*1)

Latched D408~D599, 192 words (*2)

D2000~D3919, 1920 words (*2)

Special D1000~D1999, 1000 words,

some are latched

Right-side special

module

D9900~D9999, 100 words (*1)

(*4)

Left-side special

module

D9800~D9899, 100 words (*1)

(*5)

Word

D Data

Index E0~E7, F0~F7, 16 words (*1)

Tot al

10000

points

- 3 -

Item Specification

N Master control loop N0~N7, 8 points

P Pointer P0~P255, 256 points

External interrupt

I000/I001(X0), I100/I101(X1), I200/I201(X2),

I300/I301(X3), I400/I401(X4), I500/I501(X5),

I600/I601(X6), I700/I701(X7), 8 points (01:

rising-edge trigger , 00: falling-edge

trigger )

Timer interrupt I602~I699, I702~I799, 2 points (Timer

resolution = 1ms)

High-speed counter

interrupt

I010, I020, I030, I040, I050, I060, I070, I080,

8 points

Pointer I Interrupt

service

Communication

interrupt I140(COM1), I150(COM2), 2 points

K Decimal

K-32,768~K32,767 (16-bit operation)

K-2,147,483,648~K2,147,483,647 (32-bit

operation)

Constant

H Hexadecimal H0000~HFFFF (16-bit operation)

H00000000~HFFFFFFFF (32-bit operation)

Serial ports

COM1: built-in RS-232 (Client/Server)

COM2: built-in RS-485 (Client/Server)

COM3: built-in USB (Server)

COM1 is typically the programming port.

Real time clock Year, Month, Day, Week, Hours, Minutes,

Seconds

Special I/O modules

Right side: Up to 8 I/O modules can be

connected

Left side: Up to 8 high-speed I/O module can

be connected

File register K0~K4999, 5000 points (*2)

Notes:

1. Non-latched area cannot be modified

2. Latched area cannot be modified

3. There are 8 input points (X0~X7), and 6 output points (Y0~Y5) in ELC2-PA series.

ELC2-PA occupies 16 input points (X0~X17), and 16 output points (Y0~Y17).

Extension input points start from X20, and extension output points start from Y20.

4. If ELC2-PA is connected to a right-side special module, and M1183 is Off, the range

of data registers can be used. Every special module connected to ELC2-PA

occupies ten data registers.

5. If ELC2-PA is connected to a left-side special module, and M1182 is Off, the range of

data registers can be used. Every special module connected to ELC2-PA occupies

ten data registers.

Electrical Specifications

Model

Item ELC2-PA20AADR ELC2-PA20AADT ELC2-PA20AADP

Power supply voltage

24 Vdc (-15% ~ 20%)

(with reverse polarity protection on the DC input power)

ELC-PS01: input 100 to 240 Vac, output 24 Vdc/1A ELC-PS02:

input 100 to 240 Vac, output 24 Vdc/2A

Inrush current Max. 7.5A@24VDC

Fuse capacity 2.5A/30 Vdc, Polyswitch

Power consumption 4.7W 4W 4W

Insulation resistance > 5MΩ(all I/O point-to-ground: 500 Vdc)

Noise immunity

ESD: 8KV Air Discharge

EFT: Power Line: 2KV, Digital I/O: 1KV, Analog & Comm. I/O: 1KV

RS: 26MHz ~ 1GHz, 10V/m

Grounding

The diameter of grounding wire cannot be smaller than the wire

diameter of terminals 24V and 0V (All ELC2 controllers should be

grounded directly to the ground pole).

Operation / storage

Operation: 0°C ~ 55°C (temp.), 50 ~ 95% (humidity), Pollution

degree2

Storage: -25°C ~ 70°C (temp.), 5 ~ 95% (humidity)

- 4 -

Model

Item ELC2-PA20AADR ELC2-PA20AADT ELC2-PA20AADP

Vibration / shock

resistance

International standards: IEC61131-2, IEC 68-2-6 (TEST

Fc)/IEC61131-2 & IEC 68-2-27 (TEST Ea)

Weight (g) 243g 224g 227g

Input PointSpec.

Items 24 Vdc (-15% ~ 20%) single common port input

Input No. X0, X2 X1, X3 X4 ~ X7

Input type DC (SINK or SOURCE)

Input Current (± 10%) 24 Vdc, 5mA

Input impedance 4.7K Ohm

OffOn > 15 Vdc

Action level OnOff < 5 Vdc

OffOn < 2.5μs < 10μs < 20usResponse

time OnOff < 5μs < 20μs < 50us

Filter time Adjustable within 0 ~ 20ms by D1020 (Default: 10ms)

Output PointSpec.

Items Relay Transistor

Output No. Y0 ~ Y5 Y0, Y2 Y1, Y3 Y4, Y5

Max. frequency 1Hz 100kHz 10kHz 1kHz

Working voltage 250 ac, < 30 Vdc 5 ~ 30 Vdc #1

Resistive 1.5A/1 point (5A/COM) ELC2-PA20AADT: 0.5A/1 point (3A/ZP)

ELC2-PA20AADP: 0.3A/1 point (1.8A/UP)

Inductive #2 15W (30 Vdc)

Max. load

Lamp 20WDC/100WAC 2.5W (30 Vdc)

OffOn 2μs 20μs 100μsResponse

time OnOff Approx. 10 ms 3μs 30μs 100μs

#1: ELC2-PA20AADT: UP, ZP must work with external auxiliary power supply 24 Vdc (-15% ~

+20%), rated consumption approx. 3mA/point.

ELC2-PA20AADP: UP, ZP must work with external auxiliary power supply 5~30 Vdc, rated

consumption approx. 5mA/point.

#2: Life curves

Contact

Current(A)

0.5

0.1 0.2

0.3 0.7 1 2

200

300

500

100

1000

2000

3000

Operation(X10)

120VAC Resistive

30VDC Inductive(t=7ms)

240VAC Inductive(cos 0.4)

120VAC Inductive(cos =0.4)

30VDC

Inductive

( t=4 0ms )

A/D and D/A Specifications

Analog Input (A/D) Analog Output (D/A)

Items Voltage Current Voltage Current

Analog I/O range ±10V ±20mA 4 ~ 20mA#1 ±10V 0 ~ 20mA 4 ~ 20mA#1

Digital conversion

range ±2,000 ±2,000 0 ~ +2,000 ±2,000 0 ~ +4,000 0 ~ +4,000

Resolution #2 12-bit

Input impedance > 1MΩ250Ω-

Output impedance - 0.5Ωor lower

Tolerance carried

impedance - > 5KΩ< 500Ω

Overall accuracy

Non-linear accuracy: ±1% of full scale within the range of PLC operation

temperature

Maximum deviation: 1% of full scale at 20mA and +10V

Response time 2ms (set up in D1118) #3 2ms #4

Absolute input

range ±15V ±32mA -

Digital data format 2’s complement of 16-bit, 12 significant bits

Average function Provided (set up in D1062) #5 -

- 5 -

Analog Input (A/D) Analog Output (D/A)

Items Voltage Current Voltage Current

Isolation method No Isolation between digital circuit and analog circuit

Protection Voltage output has short circuit protection, but a long period of short

circuit may cause internal wire damage and open circuit of current output.

#1: Please refer to the detailed explanation of D1115.

#2: Resolution formula

Analog Input (A/D) Analog Output (D/A)

Voltage Current Voltage Current

)

4000

20V

5mV( 

)

4000

40mA

μΑ(10 

)

4000

20V

5mV( 

)

4000

20mA

μΑ(5 

#3: When the scan period is longer than 2ms or the set value, the setting will follow the scan

period.

#4: When the scan period is longer than 2ms, the setting will follow the scan period.

#5: When the sampling range is “1”, the present value will be read.

I/O Configuration

Input Output I/O configuration

Model Point Type Point Type Relay NPN PNP

ELC2-

PA20AADR Relay

ELC2-

PA20AADT

NPN

Transistor

ELC2-

PA20AADP

(Sink Or

Source)

PNP

Transistor

ELC2-

PA -R/T/P 4 Analog

Input 2 Analog

output

V0+

I0+

VI0-

V1+

I1+

VI1-

V2+

I2+

VI2-

V3+

I3+

VI3-

VO0

VO1

IO1

S/S

C1IO0

V0+

I0+

VI0-

V1+

I1+

VI1-

V2+

I2+

VI2-

V3+

I3+

VI3-

VO0

VO1

IO1

S/S

Y3IO0

V0+

I0+

VI0-

V1+

I1+

VI1-

V2+

I2+

VI2-

V3+

I3+

VI3-

VO0

VO1

IO1

S/S

Y3IO0

Dimension & Installation

Please install the ELC2 in an enclosure with sufficient space around it to allow heat

dissipation, as shown in the following figure.

Direct Mounting: Please use M4 screw according to the dimension of the product.

DIN Rail Mounting: When mounting the ELC2 to 35mm DIN rail, be sure to use the

retaining clip to stop any side-to-side movement of the ELC2 and reduce the chance

of wires being loose. The retaining clip is at the bottom of the ELC2. To secure the

ELC2 to DIN rail, pull down the clip, place it onto the rail and gently push it up. To

remove the ELC2, pull the retaining clip down with a flat screwdriver and gently

remove the ELC2 from DIN rail.

390 3

101

53.2

V2+

IO1

VO1

IO0

VO0

I3+

VI3-

VI2-

V3+

I2+

VI0-

I1+

VI1-

V1+

V0+

I0+

Unit: mm

- 6 -

Wiring

1. Use 22-16AWG (1.5mm) single or multiple core wire

on I/O wiring terminals. See the figure in the right hand

side for its specification. ELC2 terminal screws should be

tightened to 1.90 kg-cm (1.65 in-lbs) and please use only

60/75ºC copper conductor.

22-16AWG

< 1.5mm

2. DO NOT wire empty terminal and place the I/O signal cable in the same wiring

circuit.

3. DO NOT drop tiny metallic conductors into the ELC2 while screwing and wiring

terminals. When finished wiring, remove off the protective sticker on the heat

dissipation opening to ensure normal heat dissipation of the ELC2.

Safety Wiring

Eaton’s power supply modules ELC-PS01 or ELC-PS02 are the suitable 24 Vdc power

supplies for ELC2-PA. Users are suggested to install a protective circuit at the power

supply terminal to protect ELC-PS01 or ELC-PS02. See the figure below.

○

1AC power supply:100 ~ 240VAC, 50/60Hz ○

2Breaker

○

3Emergency stop: This button cuts off the system power supply when accidental

emergency takes place.

○

4Power indicator ○

5AC power supply load

○

6Power supply circuit protection fuse (2A) ○

7ELC-PS01/ ELC-PS02

○

8DC power supply output: 24VDC, 500mA ○

9ELC-PLC (main processing unit)

○

10 Digital I/O module

Power Supply

The power input of ELC2-PA series is DC. When operating ELC2-PA series, please note

the following points:

1. The power is connected to the two terminals, 24VDC and 0V, and the range of power

is 20.4 ~ 28.8 Vdc. If the power voltage is less than 20.4 Vdc, ELC2 will stop running,

all outputs will go off and ERROR indicator will flash continuously.

2. A power shutdown of less than 10 ms will not affect the operation of the PLC.

However, a shutdown time that is too long or a drop of power voltage will stop the

operation of the ELC2 and all outputs will go OFF. When the power returns to normal

status, the ELC2 will automatically resume operation. (Care should be taken on the

latched auxiliary relays and registers inside the ELC2 when programming).

- 7 -

Input Point Wiring

There are two types of DC inputs, SINK and SOURCE. (See the example below. For

detailed point configuration, please refer to the specification of each model.)

DC Signal IN – SINK mode

Input point loop equivalent circuit

DC Signal IN – SOURCE mode

Input point loop equivalent circuit

24G

+24V

S/S

+24V

24G

S/S

Output Point Wiring

1. ELC2-PA series controllers have either relay or transistor (NPN/PNP) outputs.

Please note the connection of shared terminals when wiring output terminals.

2. Output terminals, Y0, Y1, and Y2, of relay models use C0 common port; Y3, Y4, and

Y5 use C1 common port; as shown in the following figure. When output points are

enabled, their corresponding indicators on the front panel will be on.

3. Output terminals, Y0 ~Y5 of transistor (NPN/PNP) models use UP, ZP common port;

as shown in the following figures.

4. Isolation circuit: The optical coupler is used to isolate signals between the circuit

inside PLC and input modules.

Relay (R) output circuit wiring

- 8 -

○

1DC power supply ○

2Emergency stop: Uses external switch

○

3Fuse: Uses 5~10A fuse at the shared terminal of output contacts to protect the output circuit

○

4Transient voltage suppressor (SB360 3A 60V): To extend the life span of contact.

1. Diode suppression of DC load: Used when in smaller power [Figure 1]

2. Diode + Zener suppression of DC load: Used when in larger power and frequent On/Off

[Figure 2]

○

5Incandescent light (resistive load) ○

6AC power supply

○

7Manually exclusive output: For example, Y3 and Y4 control the forward running and reverse

running of the motor, forming an interlock for the external circuit, together with the PLC

internal program, to ensure safe protection in case of any unexpected errors.

○

8Absorber: To reduce the interference on AC load [Figure 3]

Transistor (T) output circuit wiring

Transistor output - NPN type

(for ELC2-PH12NNDT)

Transistor output - PNP type

(for ELC2-PA20AADP)

○

1DC power supply ○

2Emergency stop ○

3Circuit protection fuse

○

4The output of the transistor model is “open collector”. If Y0/Y1 is set to pulse output, the

output current has to be bigger than 0.1A to ensure normal operation of the model.

1. Diode suppression: Used when in smaller power [Figure 4]

2. Diode + Zener suppression: Used when in larger power and frequent On/Off [Figure 5]

○

5Manually exclusive output: For example, Y3 and Y4 control the forward running and reverse

running of the motor, forming an interlock for the external circuit, together with the PLC

internal program, to ensure safe protection in case of any unexpected errors.

- 9 -

A/D and D/A External Wiring

A/D: Active A/D: Passive

V0+

I0+

VI0-

CH1

V3+

I3+

VI3-

CH3

24V

Voltage input

Current input

Shielded

cable

Shielded

cable

Te rmin al

power moduleof

Grounding

(100 or less)

V0+

I0+

V0-

CH1

V3+

I3+

VI3-

CH3

Voltage input

Current input

Shielded

cable

Shielded

cable

Terminal of

power module

Grounding

(100 or less)

24V

D/A

VO0

IO0

VO1

IO1

CH1

Isolation wire

CH2

Vol tage output

AC drive, recorder,

scale value...

AC drive, recorder,

scale value...

Current output

Isolation wire

Note: When the A/D module is

connected to current signals, make

sure to short-circuit “V+” and “I+”

terminals.

RS-485 Wiring

D+ D- SG D+ D- SG SG D+ D-

1 2 2

○

1Client node ○

2Server node

○

3Terminal resistor ○

4Shielded cable

Note: 1. Terminal resistors are suggested to be connected to the client node and the last server

node with resistor value of 120.

2. To ensure communication quality, please apply double shielded twisted pair cable

(20AWG) for wiring.

3. When voltage drop occurs between the internal ground references of two systems,

connect the systems with Signal Ground point (SG) for achieving equal potential

between systems so that a stable communication can be obtained.

Precision of the RTC (Second/Month)

Temperature

(°C/°F) 0/32 25/77 55/131

Maximum error

(Second) -117 52 -132

Duration in which the RTC is latched: One week

Troubleshooting & Indicator Description

Based on the indicators on the front panel, please check the following for errors:

☼POWER indicator

When ELC2 is powered, the POWER LED indicator on the front panel will be on

(in green). If this indicator is not on or the ERROR indicator keeps flashing when

ELC2 is powered indicates that the power supply +24V are insufficient or DC

power supply 24V is overloaded. In this case, change another 24V DC power

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