ES-7741-A Rev.0
R7G4JECT-LC2-A
Remote I/O R7G4J Series
EtherCAT I/O MODULE
(strain gauge input, 2 points, isolated, screw terminal block)
Functions & Features
• 2 points strain gauge input module for EtherCAT
EtherCAT® is a registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.
MODEL: R7G4JECT-LC2-A–R[1]
ORDERING INFORMATION
• Code number: R7G4JECT-LC2-A-R[1]
Specify a code from below for [1].
(e.g. R7G4JECT-LC2-A-R/R20/F2K/Q)
• Specify the specification for option code /Q
(e.g. /C01/SET)
I/O TYPE
LC2
: Strain gauge input, 2 points
TERMINAL BLOCK
A
: Screw terminal block for power supply
RJ-45 Modular jack for communication
Screw terminal block for I/O
POWER INPUT
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
[1] OPTIONS (multiple selections)
Input Range
(be sure to specify)
/R20
: -2 - +2 mV/V
/R10
: -1 - +1 mV/V
/R05
: -0.5 - +0.5 mV/V
Lowpass Filter
(be sure to specify)
/F2K
: 2 kHz/2 Hz
/F1
: 1 Hz/2 Hz
Other Options
blank
: none
/Q
: Option other than the above (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
EX-FACTORY SETTING
/SET
: Preset according to the Ordering Information Sheet
(No. ESU-7741-A)
RELATED PRODUCTS
• PC configurator software (model: R7CFG)
• ESI file
The configurator software and ESI files are downloadable at our web site.
Use a commercially available Mini-B USB cable to connect the unit to a PC.
GENERAL SPECIFICATIONS
Connection
EtherCAT
: RJ-45 Modular Jack
Power input, I/O
: M3 separable screw terminal
(torque 0.5 N·m)
Solderless terminal
: Refer to the drawing at the end of the section.
Recommended manufacturer
: Japan Solderless Terminal MFG.Co.Ltd, Nichifu Co.,ltd
Applicable wire size
: 0.25 to 1.65 mm
2
(AWG 22 to 16)
Screw terminal
: Nickel-plated steel
Housing material
: Flame-resistant resin (gray)
Isolation
: Input 0 or monitor output 0 to input 1 or monitor output 1 to EtherCAT or FE to power
Setting item (set from R7CFG or EtherCAT master)
• Zero/span point adjustment
• Auto zero
• Offset clear
• Load coefficient
• Moving average
• Excitation voltage
• Lowpass filter
• Monitor output
Status indicator LED
: PWR, RUN, ERR, L/A IN, L/A OUT
(Refer to the instruction manual)
Input status indicator LEDs
: A.ZERO, ZERO, SPAN, MODE, RESET, UNDER, 0-100, OVER
(Refer to the instruction manual for details)
■Recommended solderless terminal
EtherCAT COMMUNICATION
Standard
: IEEE 802.3u
Transmission type
: 100BASE-TX
Transmission speed
: Full-duplex 100 Mbps
Transmission media
: 100BASE-TX (STP cable; Category 5e)
Maximum internode length
: 100 meters
Fixed address:
Set with rotary switches
(The master must support MDP.)
INPUT SPECIFICATIONS
■Strain Gauge Input:
•
Strain Gauge
Input range
:
Option code /R20
-2 – +2 mV/V (at 5 V excitation)
-4 – +4 mV/V (at 2.5 V excitation)
Option code /R10
-1 – +1 mV/V (at 5 V excitation)
-2 – +2 mV/V (at 2.5 V excitation)
Option code /R05
-0.5 – +0.5 mV/V (at 5 V excitation)
-1 – +1 mV/V (at 2.5 V excitation)
Max. Input range
:
Option code /R20
-3 – +3 mV/V (at 5 V excitation)
-6 – +6 mV/V (at 2.5 V excitation)
Option code /R10
-1.5 – +1.5 mV/V (at 5 V excitation)
-3 – +3 mV/V (at 2.5 V excitation)
Option code /R05
-0.75 – +0.75 mV/V (at 5 V excitation)
-1.5 – +1.5 mV/V (at 2.5 V excitation)
Zero adjustment
:
Option code /R20
-1 – +1 mV/V (at 5 V excitation)
-2 – +2 mV/V (at 2.5 V excitation)
Option code /R10
-0.5 – +0.5 mV/V (at 5 V excitation)
-1 – +1 mV/V (at 2.5 V excitation)
Option code /R05
-0.25 – +0.25 mV/V (at 5 V excitation)
-0.5 – +0.5 mV/V (at 2.5 V excitation)
Lowpass filter
:
Approx. 2 kHz or approx. 2 Hz (option code /F2K)
Approx. 1 Hz or approx. 2 Hz (option code /F1)
Conversion rate
: min. 2000 samples/sec.
•
Excitation
: 5 V ±10% or 2.5 V ±10%
(Input range doubled in the case of 2.5 V excitation)
Maximum current
: max. 60 mA (Up to 4 strain gauges of 350 Ω can be connected in parallel-adding connection at 5 V excitation)
max. 100 mA (at 2.5 V excitation)
OUTPUT SPECIFICATIONS
Output range
: 0 – 10 V DC (for input 0 - 100 %)
Load resistance
: ≥ 100 kΩ
Operational range
:
-115 - +115 %
INSTALLATION
Current consumption
: ≤ 150 mA
Operating temperature
: -10 to +55°C (14 to 131°F)
Storage temperature
: -20 to +65°C (-4 to +149°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Atmosphere
: No corrosive gas or heavy dust
Mounting
: Surface or DIN rail (35 mm rail)
Weight
: 220 g (0.49 lb)
PERFORMANCE
Accuracy:
Option code except /R05
±0.04 % (Averaging 128 samples or more)
±0.05 % (Averaging 64 samples)
±0.10 % (Averaging 8, 16, 32 samples)
±0.15 % (Averaging 4 samples)
±0.20 % (Averaging 2 samples)
Option code /R05
±0.05 % (Averaging 512 samples or more)
±0.10 % (Averaging 64, 128, 256 samples)
±0.20 % (Averaging 16, 32 samples)
±0.30 % (Averaging 2, 4, 8 samples)
Monitor output accuracy:
±0.1 %
Converted data range:
Input 0 / input 1: 0 – 10000 of the range from zero to span
Total input data: Sum of input 0 and input 1
Temperature coefficient:
Strain gauge input: ±0.015 %/°C (±0.008 %/°F)
Monitor output: ±0.015 %/°C (±0.008 %/°F)
Input delay time:
Lowpass filter 2 kHz max. 20 msec. (0 - 90 %)
Lowpass filter 2 Hz max. 200 msec. (0 - 90 %)
Lowpass filter 1 Hz max. 400 msec. (0 - 90 %)
Output delay time:
≤ 250 msec. (0 – 90 %)
Resolution
: 1/10000
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Isolation
: 1500 V AC @ 1 minute
(input 0 or monitor output 0 to input 1 or monitor output 1 to EtherCAT or FE to power)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
PC CONFIGURATOR
The following parameters can be set with PC Configurator Software (model: R7CFG)
Refer to the users manual for the R7CFG for detailed operation of the software program.
However, settings from the host communication EtherCAT and from the configurator software cannot be used at the same time. Use either method of communication for setting parameters.
EXTERNAL VIEW
TERMINAL ASSIGNMENTS
■I/O TERMINAL ASSIGNMENT
■ POWER SUPPLY TERMINAL ASSIGNMENT
DATA CONVERSION
RESPONSE TIME
• Input module
Response time is time from when a step (0 to 100%) input signal is applied to the input module (slave) until when output from its communication CPU reaches 90% of the final value.
T
COM
: EtherCAT communication cycle set by the host device (master)
(The cycle is determined in accordance with the system configuration and settings.)
T
INP
: Input module response time ≤ Delay time of input circuit (Ta) + Conversion speed
*1
(Tb) + Input internal processing time (Tc) (Communication cycle x 2)
*1. Conversion speed x No. of moving averages (1 to 128)
ex.) When No. of moving averages: 2, Delay time of input circuit: 20 msec., and EtherCAT communication cycle: 1 msec.,
Input module response time (T
INP
): Delay time of input circuit (20 msec.) + Conversion speed (0.5 msec.) x No. of moving averages (2) + Input internal processing time (1 msec. x 2) = 23 [msec.]
I/O DATA DESCRIPTIONS
Scaling of analog I/O module is configurable with the configurator software (model: R7CFG). Refer to the software manual for details.
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
MOUNTING REQUIREMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
Note: In order to improve EMC performance, bond the FE terminal to ground.
Caution: FE terminal is NOT a protective conductor terminal.