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ERC3 Gateway Unit
First Step Guide
First Edition
Thank you for purchasing our product.
Make sure to read the Safety Guide and detailed Instruction Manual (CD/DVD) included with the product in addition to
this First Step Guide to ensure correct use.
This Instruction Manual is original.
Warning : Operation of this equipment requires detailed installation and operation instructions which are
provided on the CD/DVD Manual included in the box this device was packaged in. It should be
retained with this device at all times.
A hardcopy of the Manual can be requested by contacting your nearest IAI Sales Office listed at
the back cover of the Instruction Manual or on the First Step Guide.
• Using or copying all or part of this Instruction Manual without permission is prohibited.
• The company names, names of products and trademarks of each company shown in the sentences are registered
trademarks.
• DeviceNet and CompoNet are a registered mark of ODVA.
• CC-Link is a registered trademark of Mitsubishi Electric Corporation.
• PROFIBUS is a registered trademark of PROFIBUS Association.
• MECHATROLINK is a registered trademark of MECHATROLINK Members Association.
• EtherCAT® is a registered mark of Beckoff Automation GmbH.
• EtherNet/IP is a trademark used under the license of ODVA.
Product Check
This product is comprised of the following parts if it is of standard configuration.
If you find any fault in the contained model or any missing parts, contact us or our distributor.
1. Parts
No.
Part Name
Model
Refer to "How to read the model plate", "How to
1
Gateway Unit Main Body
read the model No."
Accessories
FMCD1.5/8-ST-3.5
2
Power Connector
(Supplier : PHOENIX CONTACT)
CC-Link Connector
MSTB2.5/5-STF-5.08 AU
3
(For CC-Link Type)
(Supplier : PHOENIX CONTACT)
DeviceNet Connector
SMSTB2.5/5-ST-5.08AU
4
(For DeviceNet Type)
(Supplier : PHOENIX CONTACT)
5
Absolute Battery Box (Option) EGW-ABB (Battery AB-7)
6
First Step Guide
7
Instruction Manual (DVD)
8
Safety Guide
2. Teaching Tool (Please purchase separately)
A teaching tool such as PC software is necessary when performing the setup for position setting, parameter setting, etc.
that can only be done on the teaching tool.
Please prepare either of the following teaching tools.
No.
Part Name
PC Software
1
(Includes RS232C Exchange Adapter + Peripheral Communication Cable)
PC Software
2
(Includes USB Exchange Adapter + USB Cable + Peripheral
Communication Cable)
3
Teaching Pendant (Touch Panel Teaching)
4
Teaching Pendant (Touch Panel Teaching with deadman switch)
Teaching Pendant
5
(Touch Panel Teaching with deadman switch + TP Adapter (RCB-LB-TG))
3. Instruction manuals related to this product, which are contained in the instruction manual (DVD).
No.
Name
1
ERC3 Gateway Unit Instruction Manual
2
ERC3 Actuator with Integrated Controller Instruction Manual
3
PC Software
RCM-101-MW/RCM-101-USB Instruction Manual
4
Touch Panel Teaching
CON-PTA/PDA/PGA Instruction Manual
4. How to read the model plate
Model
Serial number
5. How to read controller model code
• Gateway unit model
<Series>
<Type>
EGW
: Drive cutoff relay mounted
EGWG : Drive cutoff relay not mounted
• Battery box model
EGW – ABB – □ - □
List of Specifications
Number of Controlled Axes
Control/Motor Power Supply Voltage
Control Power Capacity
Load Current
High output setting valid
(Per axis)
High output setting invalid
Capacity of Brake Release Power Source (Per
axis)
Remarks
Control Power Capacity for Simple Absolute Unit MAX. 1.4A
High output setting valid
Heat
Generation
High output setting invalid
(Note 2)
In-Rush Current
• Emergency Stop
Transient Power Cutoff Durability
Recommended cable
Motor Control System
size
Applicable Encoder
2
0.5mm
(AWG20)
Cable Length Between Actuator and Gateway
• Power Supply
Serial Communication Interface
Recommended cable
(SIO Port: Only for teaching)
size
2
External Interface
1.25 to 0.5mm
(AWG16 to 20)
Data Setting and Input
Terminal Resistance
Data Retention Memory
(130Ω1/2W, 110Ω1/2W)
enclosed one unit each
Prepare a terminal
Number of Positioning Points
resistor separately if this
controller is to be
LED Display
allocated at the terminal.
(Mounted on Front Panel)
For Simple Absolute
Electromagnetic Brake Compulsory Release
Type
Protective functions
Protection Function against Electric Shock
Insulation Resistance
Cooling Method
Weight
Model
Ambient Air Temperature
Ambient Humidity
RCM-101-MW
Ambient Environment
Ambient Storage Temperature
RCM-101-USB
Ambient storage humidity
Usable Altitude
CON-PTA
Vibration Durability
CON-PDA
CON-PGA
Shock Resistance
Protection Class
Note 1
Refer to the separate booklet Controller Integrated Actuator for the details of the connected
actuator (ERC3).
Manual No.
Note 2
Rush current passes for about 50μs after the power is injected.
ME0302
ME0297
ME0155
ME0295
RCM – EGW – DV
<Type of Connected Field Network>
DV : DeviceNet Type
CC : CC-Link Type
PR : PROFIBUS-DP Type
CN : CompoNet Type
ML : MECHATROLINK Type
EP : EtherNet/IP Type
EC : EtherCAT Type
<Second Unit Gateway Unit >
Number of Connected Axes for Simple Absolute Type
<First Unit Gateway Unit >
Number of Connected Axes for Simple Absolute Type
Basic Specifications
4 axes MAX.
24V DC ± 10%
MAX. 1A
(Note 1)
Rated 3.5A/MAX. 4.2A
(Note 1)
Rated 1.2A/MAX. 2.0A
MAX. 0.15A
(Note 1)
2.5W
(Note 1)
1.9W
MAX. 60A
20ms
Refer to Instruction Manual for the actuator with integrated ERC3 controller
MAX. 10m (Use the dedicated cable.)
RS485 1CH (based on Modbus Protocol) Speed 9.6 to 230.4kbps
DeviceNet, CC-Link, PROFIBUS-DP, CompoNet,
MECHATROLINK-I/II, EtherNet/IP, EtherCAT
PC Software, Touch Panel Teaching, Gateway Parameter Create Tool
Position data and parameters saved in the non-volatile memory of actuator
via Gateway Unit (There is no limitation in number of writing)
MAX. 512 points (There is no limit for simple direct and direct indication
modes)
(Note) The number of positioning points differs depending on the operation
pattern select by the parameter setting.
6 points
6 points
Can be released with the brake compulsory release switch installed in the
front panel for each axis
Overcurrent Protection
Class I basic insulation
500V DC 10MΩ
Natural air-cooling
35W × 140H × 105D
Approx. 220g (DeviceNet Type, CC-Link Type, PROFIBUS Type,
Approx. 230g (MECHATROLINK Type)
Approx. 240g (EtherCAT Type)
0 to 40°C
85%RH or less (non-condensing)
[Refer to Installation Environment]
-20 to 70°C * 0 to 40°C for absolute battery
85%RH or less (non-condensing)
1000m or lower above sea level
Frequency 10 to 57Hz/ Swing width : 0.075mm
2
Frequency 57 to 150Hz/ Acceleration : 9.8m/s
XYZ Each direction Sweep time: 10 min. Number of sweep: 10 times
2
150mm/s
11ms Semi-sine wave pulse XYZ Each direction 3 times
IP20
<Calculation of 24V DC Power Capacity>
For the calculation of 24V DC power capacity, figure out the numbers for (1) to (5) below, and then follow
Step (6).
(1) Control Power Current Consumption : 1A ·················································································1)
(2) Current Consumption of Motor Power Supply:
Sum total of load current + (Number of actuator axes equipped with brake × 0.15A) ················2)
(3) For Simple Absolute Type
: 0.2A + (0.3A × Number of axes) ····································3)
(4) Current Consumption at Excitation Phase Detection:
Add the inrush current for all connected axes············································································4)
(5) In-Rush Current
: 60A················································································5)
(6) Selection of Power Supply:
Usually, the rated current is to be approximately 1.3 times higher than 1) + 2) + 3) above considering
approximately 30% of margin to the load current. However, considering the current of 4) to 5), even
though it is a short time, select a power supply with "peak load corresponding" type or that with enough
capacity. For the current of 4) to 5), it can be avoided from the current consumption occurred at the same
time by the timing for the emergency stop release (motor power-on) and servo-on being changed. In the
case that the capacity margin is not sufficient, voltage might be dropped in a moment. In particular, be
careful of the power unit with the remote sensing function.
(Note) Make short-circuit on 0V side when separate power sources are used for the control power and
motor power.
(Reference) Selection of Power Supply Protection Circuit Breaker
It is recommended that the power supply protection is conducted on the primary side (AC power side) of
the 24V DC power supply unit.
Pay attention to the in-rush current of 24V DC power supply unit and rated cutoff current of the circuit
breaker.
• Rated Breaking Current > Short-circuit Current = Primary Power Supply Capacity/Power Voltage
• (Reference) In-rush Current of IAI Power Supply Unit PS241 = 50 to 60A, 3msec
● Specifications of DeviceNet Interface
Item
Specification
Communication Protocol
DeviceNet2.0
Group 2 Dedicated Server
Network-Powered Insulation Node
Baud Rate
Automatically follows the master
Communication System
Master-Slave System (Polling)
Number of Occupied
Refer to "3.4.1 PLC Address Construction by each Operation Mode" in the Instruction Manual for
Channels
ERC3 Gateway Unit.
Number of Occupied
1 Node
Nodes
Total Branch Line
Baud Rate
Max. Network Length
Communication Cable
500kbps
100m
Length
(Note 2)
250kbps
250m
125kbps
500m
Communications Cable
Use the dedicated cable.
Connector
(Note 1)
MSTBA2.5/5-G-5.08AU (Manufactured by PHOENIX CONTACT or equivalent)
Consumption Current of
60mA
Communication Power
Supply
Communication Power
24V DC (Supplied from DeviceNet)
Supply
Note 1 The cable-side connector is a standard accessory. (PHOENIX CONTACT SMSTB2.5/5-ST-5.08AU)
Note 2 For T branch communication, refer to the Instruction Manuals for the master unit and programmable controller (PLC)
to be mounted.
● Specifications of CC-Link Interface
Item
Specification
Communication Protocol
CC-Link ver1.1 or ver2
Station Type
Remote Device Station (MAX. four stations occupied)
Baud Rate
10M/5M/2.5M/625k/156kbps
Communication System
Broadcast Polling System
Number of Connectable
Refer to "3.4.1 PLC Address Construction by each Operation Mode" in the Instruction Manual for
Stations
ERC3 Gateway Unit.
Communication Cable
Baud Rate (bps)
10M
5M
Length
(Note 2)
Total Cable Length (m)
100
160
Communications Cable
Use the dedicated cable.
Connector
(Note 1)
MSTB2.5/5-GF-5.08 AU (Manufactured by PHOENIX CONTACT or equivalent)
Note 1 The cable-side connector is a standard accessory. (PHOENIX CONTACT MSTB2.5/5-STF-5.08 AU)
Note 2 For T branch communication, refer to the Instruction Manuals for the master unit and programmable PLC to be
mounted.
● Specifications of PROFIBUS-DP Interface
Item
Specification
Communication Protocol
PROFIBUS-DP
Baud Rate
Automatically follows the master
Communication System
Hybrid System (Master-Slave System or Token Passing System)
Number of Occupied
Refer to "3.4.1 PLC Address Construction by each Operation Mode" in the Instruction Manual for
Stations
ERC3 Gateway Unit.
MAX. Total Network
Baud Rate
100m
12,000/6,000/3,000kbps
200m
1,500kbps
Communication Cable
Length
(Note 2)
400m
500kbps
1000m
187.5kbps
1200m
9.6/19.2/93.75kbps
Communications Cable
STP cable AWG18
Connector
(Note 1)
9-pin female D-sub Connector
Transmission Path Format Bus/Tree/Star
Note 1 Please prepare a 9-pin male D-sub connector for the cable-end connector.
Note 2 For T branch communication, refer to the Instruction Manuals for the master unit and programmable PLC to be
mounted.
Max. Branch Line
Length
Length
39m
6m
78m
156m
2.5M
625k
156k
400
900
1200
Cable Type
Type A Cable
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