Mettler Toledo MultiRange ID7sx Manual For Installers
Guide for installers
METTLER TOLEDO MultiRange
Explosion-protected weighing system
with the ID7sx weighing terminal
Point Ex
system solution
ID7sx
Contents
Contents Page
1 Safety instructions ....................................................................... 2
2 System overview ......................................................................... 3
2.1 Typical configurations ................................................................... 3
2.2 Description of the components ....................................................... 6
3 Installation .................................................................................. 7
3.1 Setting up system modules ............................................................ 7
3.2 Connecting devices....................................................................... 10
3.3 Selecting peripheral devices ........................................................... 11
3.4 Equipotential bonding ................................................................... 12
3.5 Connecting power supply .............................................................. 12
4 Optional work.............................................................................. 13
4.1 Making connection cables ............................................................. 13
4.2 Installing additional scale interface or active CL/IDNet module............ 14
4.3 Installing memory module ............................................................. 16
4.4 Installing additional data interface................................................... 17
4.5 Installing digital inputs/outputs ....................................................... 18
4.6 Connecting barcode scanner .......................................................... 19
4.7 Attaching Profibus-DP module........................................................ 20
5 Dimensional drawings ................................................................. 21
5.1 Desk unit ..................................................................................... 21
5.2 Panel unit .................................................................................... 22
5.3 Wall unit...................................................................................... 22
Guide for installers 22008316B 04/09 1
Safety instructions
1 Safety instructions
The ID7sx weighing terminal is approved for operation in zone 1 and 21 hazardous
areas. It may only be used in areas in which the causes of static electricity build-up,
which lead to propagating brush discharges, have been eliminated.
If the ID7sx weighing terminal is used in hazardous areas, special care must be
taken. The code of practice is oriented to the "Safe Distribution" concept drawn up by
METTLER TOLEDO.
Competence ▲ The weighing system may only be installed, maintained and repaired by
authorised METTLER TOLEDO service personnel.
Ex approval ▲ No modifications may be made to the terminal and no repair work may be per-
formed on the modules. Any weighing platform or system modules that are used
must comply with the specifications contained in the installation instructions. Noncompliant equipment jeopardises the intrinsic safety of the system, cancels the Ex
approval and renders any warranty or product liability claims null and void.
ID7sx
▲ The safety of the weighing system is only guaranteed when the weighing system
is operated, installed and maintained in accordance with the respective instructions.
▲ Also comply with the following:
– the instructions for the system modules
– the regulations and standards in the respective country
– the statutory requirement for electrical equipment installed in hazardous areas
in the respective country
– all instructions related to safety issued by the owner
▲ The explosion-protected weighing system must be checked to ensure compliance
with the requirements for safety before being put into service for the first time,
following any service work and every 3 years, at least.
Operation ▲ Prevent the build-up of static electricity. Always wear suitable working clothes
when operating or performing service work in a hazardous area.
▲ Do not use protective coverings for the device.
▲ Avoid damage to the system components.
Installation ▲ Only install or perform maintenance work on the weighing system in the
hazardous areas if the following conditions are fulfilled:
– if the intrinsically safe characteristic values and zone approval of the individual
components are in accord with one another,
– the owner has issued a permit ("spark permit" or "fire permit"),
– the area has been rendered safe and the owner's safety co-ordinator has
confirmed that there is no danger,
– the necessary tools and any required protective clothing are provided (danger
of the build-up of static electricity).
▲ The certification papers (certificates, manufacturer’s declarations) must be present.
▲ Lay cabling securely so that it does not move and effectively protet it against damage.
▲ Only route cables into the housing of the system modules via the suitable screw
gland and ensure proper seating of the seals.
2 Guide for installers 22008316B 04/09
ID7sx
2 System overview
2.1 Typical configurations
Two power supply units are available for a weighing system with the ID7sx weighing
terminal: PSU and PSUx.
PSU Power supply unit in a safe area, multiple-scale connection and
PSUx Power supply unit in hazardous area, connection of only one scale
2.1.1 Weighing terminal ID7sx, PSU and max. 3 weighing platforms
System overview
connection of peripheral devices are possible
possible
RS
CL
Terminal
Analog
interface ***
Ex-i
max. 20 m
ID7sx
Scale 1
K...x *
Scale 2
D...x ** /
Point Ex
system
solution ***
Scale 3
Analog
scale
Ex-i
max. 80 m
I/O
PSU
ID..sx
Terminal
TBrick-Ex
Scale 1
Interface
Com 1
RS232 /
CL20mA
Point-Ex
Scale 2
Com 2
Point-Ex
Scale 3
Com 3
* Only K...x weighing platforms with a TBrick...-Ex measuring cell are
permissible in this configuration.
** D...x weighing platforms with in-built Point Ex A/D converter.
*** Minimum supply impedance 87 Ω in conjunction with slotcard Point-Ex.
Minimum supply impedance 250 Ω in conjunction with slotcard TBrick-Ex.
Guide for installers 22008316B 04/09 3
System overview
2.1.2 ID7sx weighing terminal, PSUx and 1 weighing platform
In conjunction with the PSUx power supply unit, only one weighing platform (K...x,
D...x, analog scale) or one Point Ex system solution can be connected to the ID7sx
weighing terminal.
Terminal
ID7sx
Analog
interface ***
Ex-i,
max. 20 m
Scale 1
K...x * /
D...x**
Scale 2
Point Ex ***
system
solution
Ex-i
max. 50 m
PSUx
ID7sx
Scale 3
Analog
scale
* Only K...x weighing platforms with a TBrick...-Ex measuring cell are
permissible in this configuration.
** D...x weighing platforms with in-built Point Ex A/D converter.
*** Minimum supply impedance 250 Ω. Here, a maximum of 4 load cells with a
cell impedance ≥1000 Ω can be connected.
4 Guide for installers 22008316B 04/09
ID7sx
System overview
2.1.3 ID7sx weighing terminal, PSU, max. 2 weighing platforms and barcode scanner
Barcode scanner
e.g.
ELB SK200
(SC20-MTA1)
Hazardous area
Terminal
RS232
CL
ID7sx
Ex-i,
max. 20 m
K...x-T4*
D...x**/System
solution
Point Ex
Safe area
PSU
ID..sx
Terminal
TBrick-Ex
Scale 1
Interface
Com 1
Point-Ex
Scale 2
Com 2
Viper-Ex (SW)***
Scale 3
Com 3
RS232 /
CL20mA
* Only K...x weighing platforms with a TBrick...-Ex measuring cell are
permissible in this configuration.
** D...x weighing platforms with in-built Point Ex A/D converter.
*** Slotcard Viper-Ex (SW) as a power supply card for barcode scanners.
2.1.4 D7sx weighing terminal, PSU, connection to Profibus-DP
Hazardous area
Terminal
ID7sx
Ex-i,
max. 20 m
K...x-T4*
Safe area
PSU
ID..sx
Terminal
TBrick-Ex
Scale 1
Interface
Com 1
Scale 2
Com 2
Scale 3
Com 3
RS232
24 V DC
Module
Profibus-DP
PLC with
Profibus-DP
interface
Profibus-DP
Guide for installers 22008316B 04/09 5
System overview
2.2 Description of the components
2.2.1 Approvals
ID7sx weighing terminal Ignition protection type EN II 2G EEx ib IIC T4 –10 °C to +40 °C
II 2D IP65 T +55 °C
FM Class I, II, III; Division 1; Group A, B, C, D, E, F, G
ID7sx
Power supply unit
See installation instructions for PSU or PSUx
PSU/PSUx
K...x / D...x
See operating/installation instructions of the K...x or D...x weighing platforms.
weighing platforms
System solution Point Ex See guide for installers system solution Point Ex.
2.2.2 Connections
View A
A
1 Weighing platform connections W1, W2, W3
2 I/O (outputs) connection / PSUx connection
3 PSU connection
12345
4 I/O (inputs) connection
5 Connection for serial interfaces C2, C3
2.2.3 Connection options for ID7sx
Scale interfaces Scale 1 Scale 2 Scale 3
IDNet standard optional optional
Analog interface – optional optional
Active CL/IDNet interface – optional optional
Serial interfaces C1 C2 C3
CL20mA standard optional optional
RS232 – optional optional
Digital inputs/outputs 8 I/O-ID7sx optional
Memory module Memory-ID7sx optional
6 Guide for installers 22008316B 04/09
Loading...