MSR320P
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Description
The MSR320P is an input expansion module for the modular MSR300 family of monitoring safety relays. Up to ten input modules can be connected to a base unit by simply removing the terminator, included with each base unit, and connecting the ribbon cables of the neighboring module. The connecting ribbon cable provides power to the MSR320P as well as a check on its status. The terminator removed from the base module must be inserted into the input module furthest to the left.
Although the base module of the MSR300 system holds all of the configuration information, the input modules are the devices that actually configure the base module. The input modules select both the type of inputs connected and the outputs or groups those inputs will control.
The MSR320P has two independent inputs, which are configured by the rotary switches on the side of the module. There are two switches, for redundancy, so both must be set to the same value. An example of the switch settings is to the right. The selection of the switch setting signifies to the base module what inputs to expect and what to test for. Connecting a single device (must be at least dual channel) to each input meets the requirements of Category 4 per EN594-1. Below is a list of supported inputs.
The MSR320P Input module supports up to three group outputs. Two rotary switches, for redundancy, on the side of the module select the output group or groups the connected inputs will control. Below is an example of the possible group settings.
When three channel N.C. inputs are not chosen, functions switch setting three, one solid-state output is available for each input to provide annunciation for that input.
Two LEDs provide the status information on the inputs. Green indicates the input is closed and red indicates the input is open. Three LEDs provide information regarding which output groups are controlled by this input module.
Features
- Category 4 per EN 954-1
- SIL3 IEC 61508
- EN 574 Type IIIC
- Stop category 0
- 17.5 mm DIN rail housing
- Five diagnostic LEDs
- Configurable inputs
- Output group configurable
- Removable terminals
LED Indicators
| 2x input status | Input Closed |
| Green | Input Open; 3x output switch group assignment |
Specifications
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| Safety Ratings | |
| Standards | IEC/EN 60204-1, ISO TR 12100, EN 61508, ISO 13849-1, EN 574 Cat IIIC |
| Safety Classification | Cat. 4 per EN 954-1 (ISO 13849-1), SIL CL3 per EN IEC 62061, PLe per ISO 13849-1 |
| Functional Safety Data ¬ Note: For up-to-date information, visit http://www.ab.com/Safety/ |
PFHD: < 3.1 x 10-10 MTTFd: > 835 years Suitable for performance levels Ple (according to ISO 13849-1:2006) and for use in SIL3 systems (according to IEC 62061) depending on the architecture and application characteristics |
| Certifications | CE marked for all applicable directives, cULus, c-Tick, and TÜV |
| Power Supply | |
| Input Power Entry | 24V DC from the base unit |
| Power Consumption | 1 W |
| Inputs | |
| Safety Inputs | 1 N.C., 2 N.C., or 3 N.C., 1 N.C and 1 N.O., LC, SM, or two-hand control |
| Input Simultaneity | 3 seconds or infinite |
| Input Resistance, Max. | 900 W |
| Reset | Selected on base module |
| Outputs | |
| Auxiliary Contacts | 2 PNP, 24V DC @ 50 mA |
| Environmental and Physical Characteristics | |
| Enclosure Type Rating/ Terminal Protection |
IP40 (NEMA 1)/ IP20, DIN 0470 |
| Operating Temperature [C (F)] | -5…55° (23…131°) |
| Vibration | 10…55 Hz, 0.35 mm |
| Shock | 10 g, 16 ms, 100 shocks |
| Mounting | 17.5 mm housing, 35 mm DIN Rail |
| Weight [g (lbs)] | 110 (0.24) |
| Conductor Size, Max. | 0.2…2.5 mm2 (24…12 AWG) |
| ¬ Usable for ISO 13849-1:2006 and IEC 62061. Data is based on the following assumptions: - Mission time/Proof test interval of 20 years - Functional test at least once within six-month period |
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Product Selection
| Safety Inputs | Safety Outputs | Auxiliary Outputs | Terminals | Reset Type | Power Supply | Cat. No. |
| 1 N.C., 2 N.C., or 3 N.C., 1 N.C and 1 N.O., LC, SM, or two-hand control | — | 2 PNP Solid State | Removable | — | 24V DC from the base unit | 440R-W23218 |
Accessories
| Description | Cat. No. |
| Bag of 4, 3-Pin Screw Terminal Blocks | 440R-A23210 |
| Bag of 4, 3-Pin Spring Clamp Terminal Blocks | 440R-A23229 |
Approximate Dimensions—mm (inches)
Dimensions are not intended to be used for installation purposes.
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Block Diagram
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Typical Wiring Diagrams
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