Product Introduction
IEMMU21 is a rugged module mounting unit suitable for industrial automation control systems, providing a reliable mounting platform for various modules. It supports a variety of module types, including I/O modules, communication modules, and power modules.
Technical Specifications
|
Brand |
ABB Bailey |
|
Model |
IEMMU21 |
|
Part Number |
IEMMU21 |
|
Description |
Module Mounting Units |
|
Origin |
USA |
|
Dimension |
48*30*18cm |
|
Weight |
3.7kg |
Product Details
OVERVIEW
The IEMMU11, IEMMU12, IEMMU21, and IEMMU22 are module mounting units used to house standard INFI 90 OPEN system modules and the BRC-100 Harmony Bridge Controller module of the Symphony system in system cabinets.
NOTE: IEMMU11, IEMMU12, IEMMU21, and IEMMU22 Module Mounting Units can be used as replacements for IEMMU01 and IEMMU02 Module Mounting Units. They can also be installed along with IEMMU01 and IEMMU02 units; however, transition board assemblies are required for interconnection between IEMMU11, IEMMU12, IEMMU21, or IEMMU22 units and IEMMU01 or IEMMU02 units.
The module mounting unit consists of a sheet metal card chassis and a printed circuit board backplane assembly. The open top and bottom structure allow air to flow over the modules. Mounting flanges are provided for mounting the mounting unit in a standard Elsag Bailey 483-millimeter (19-inch) cabinet.
Modules can be installed and removed quickly and easily. The module is held in position by card guides, the connectors on the backplane, and the module's front panel, captive fastening latches.
The backplane is a multilayer printed circuit board assembly containing electronic components, dipshunt sockets, connectors, and jumpers. In most cases, the mounting unit provides direct I/O cable coupling to the modules. The exception to this is when a BRC-100 Harmony Bridge Controller module is installed in the MMU.
IEMMU21 and IEMMU22 Module Mounting Units
The IEMMU21 and IEMMU22 module mounting units provide physical mounting for up to 12 system modules; provide electrical distribution of I/O expander bus, module bus, and Controlway signals; and distribution of regulated power supply voltages (+5 V, +15 V, and –15 V). The IEMMU21/22 module mounting units are the preferred choice for use with Modular Power System II.
The IEMMU21 module mounting unit is used when the cabinet configuration requires a rear mount chassis with no primary power distribution.
The IEMMU22 mounting unit is used when the cabinet configuration requires a front mount chassis with no primary power distribution.
Specifications
| Property | Characteristic/Value |
| Capacity | 12 modules |
| Mounting | Standard 483-mm (19-in.) cabinet |
| Ambient temperature (operating) | Temperature rating within the enclosure or cabinet. Internal cabinet rating: 0° to 70°C (32° to 158°F) |
| Relative humidity (operating) | 5% to 95% up to 55°C (131°F), noncondensing 5% to 45%, up to 70°C (158°F), noncondensing |
| Storage and transport temperature | –40° to 85°C (–40° to 185°F) |
| Storage and transport relative humidity | 0% to 95%, noncondensing |
| Air quality | Noncorrosive |
| Primary power | 120/240 VAC, 24/48 VDC (IEMMU11/IEMMU12 only) |
| Regulated DC voltages | +5 VDC, +15 VDC, –15 VDC, +24 VDC, MCOM, I/OCOM |
|
EMI/RFI Fast transient/burst susceptibility
Transient surge Electrostatic discharge Emissions |
Meets IEC 1000.3, level 3, 80 MHz to 1 GHz with no loss of function or false status information Meets IEC 1000.4, level 3, mains 2 kV at 2.5 kHz, outputs 1 kV at 5.0 kHz with no loss of function or false status information Meets IEC 1000.5, level 3, 2 kV with no loss of function or false status information Meets IEC 1000.2 level 3, with no loss of function or false status information Meets CISPR11 with amendments 92/31/EEC and 93/68/EEC |
| Vibration | 13.2 to 100 Hz, 0.7 Gs 2 to 13.2 Hz, 12 mm (0.47 in.) p-p displacement |
| Certifications (pending) |
CSA certified for use as process control equipment in an ordinary (nonhazardous) location Nonincendive: CSA: Class I, Division 2, Groups A,B,C,D FM: Class I, Division 2, Groups A,B,C,D CE mark: In compliance with EMC Directive 89/336/EEC, EDS, EFT, RFI and CISPR11 with amendments 92/31/ EEC and 93/68/EEC |
| Flammability (UL94) | Materials rated at V0, V1, V2 or V5 wires and cables rated UL VW-1 |
| Installation category (IEC 1010-1) | Category I for outputs, Category II for mains Pollution degree I |
Mounting unit nomenclature
| Nomenclature | Description |
| IEMMU11 | Rear mount chassis module mounting unit with primary power distribution. |
| IEMMU12 | Front mount chassis module mounting unit with primary power distribution. |
| IEMMU21 | Rear mount chassis module mounting unit without primary power distribution. |
| IEMMU22 | Front mount chassis module mounting unit without primary power distribution. |
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