MSR144RTP
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Description
The MSR144RTP is a versatile monitoring safety relay. It can be connected in four different input wiring configurations: one normally closed, two normally closed, two PNP connections from a light curtain, or a four-wire safety mat. When connected in the two normally closed fashion, the MSR144RTP checks for cross faults across the two inputs. When connected to light curtains, the light curtain must perform the cross-fault detection.
Any combination of up to five MSR230 and MSR238 output modules can be easily connected to the MSR144RTP by removing the terminator, inserting a ribbon cable from the expander and then placing the terminator into the last expansion module.
The MSR144RTP has output monitoring that can accommodate either automatic/manual reset or a monitored manual reset. When configured with automatic/manual reset (jumpers on X1-X2 and X3-X4), the MSR144RTP can have the reset terminals S33-S34 jumpered or can be converted to an unmonitored manual reset by adding a normally open switch in the monitoring loop (S33-S34). When configured to monitored manual reset, the MSR144RTP checks the output monitoring circuit through the manual application of the reset switch.
The outputs include two normally open safety rated outputs, two normally closed auxiliary outputs, and two solid-state auxiliary outputs. One solid-state output indicates the inputs are closed. The second solid-state output indicates the safety outputs are active.
The safety outputs have independent and redundant internal contacts to help ensure the safety function. The auxiliary outputs are nonsafety outputs intended to provide an external signal about the status of the safety outputs.
Features
- Category 4 per EN 954-1
- Stop category 0 or 1 (with MSR238)
- Light curtain, safety mat, E-stop inputs
- Two N.O. safety outputs
- Two N.C. auxiliary outputs
- Two solid-state auxiliary outputs
- Cross-fault monitoring
- Monitored manual or automatic/manual
- Removable terminals
- Expansion for up to five modules
LED Indicators
| Green | Power |
| Green | Start |
| Green | CH1 IN |
| Green | CH2 IN |
| Green | CH1 output energized |
| Green | CH2 output energized |
Specifications
| Safety Ratings | |
| Standards | EN 954-1, ISO 13849-1, IEC/EN 60204-1, AS 4024.1, ISOTR 12100 |
| 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: < 1.67 x 10-9 MTTFd: > 389 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, TÜV, and c-Tick |
| Power Supply | |
| Input Power Entry | 24V DC |
| Power Consumption | 4 W + expanders |
| Inputs | |
| Safety Inputs | 1 N.C., 2 N.C., LC or 4-wire safety mat |
| Input Simultaneity | Infinite |
| Input Resistance, Max. | 45 ohms |
| Reset | Auto./Manual or Monitored Manual |
| Power On Delay/ Recovery Time |
1 s/100 ms |
| Response Time | 15 ms |
| Outputs | |
| Safety Contacts | 2 N.O. |
| Auxiliary Contacts | 2 N.C., 2 PNP |
| Rated Impulse withstand Voltage | 2500V |
| Switching Current @ Voltage, Min. | 10 mA @ 10V DC |
| Fuses, Output | 6 A slow blow or 10 A quick blow (external) |
| Electrical Life (Operations) | 220V AC/4 A/880VA cosf = 0.35…0.1 M 220V AC/1.7 A/375VA cosf = 0.6…0.5 M 30V DC/2 A/60 W = 1 M 10V DC/0.01 A/0.1 W = 2 M |
| Mechanical Life | 2,000,000 operations |
| Utilization Category | |
| Inductive: Safety & Aux.: AC-15 | 5 A/250V AC |
| Inductive: Safety & Aux.: DC-13 | 3 A/24V DC |
| UL | B300, R300, 1 x 6 A or 2 x 5 A resistive/250V AC, 24V DC |
| Solid State: | 20 mA/30V DC short circuit protection |
| Environmental and Physical Characteristics | |
| Enclosure Type Rating/ Terminal Protection |
IP40 (NEMA 1), DIN VDE 0470-1/ IP20 |
| Operating Temperature [C (F)] | -5…+55 ° (23…131 °) |
| Vibration | 10…55 Hz, 0.35 mm |
| Shock | 10 g, 16 ms, 100 shocks |
| Mounting | 35 mm DIN Rail |
| Weight [g (lb)] | 315 (0.71) |
| Conductor Size, Max. | 0.2…4 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
| Inputs | Safety Outputs | Auxiliary Outputs | Terminals | Reset Type | Power Supply | Cat. No. |
| 1 N.C., 2 N.C., Light Curtain, Safety Mat | 2 N.O. | 2 N.C. 2 PNP solid state | Removable | Monitored Manual or Auto/Manual | 24V DC | 440R-C23205 |
Accessories
| Description | Cat. No. |
| Bag of 4, 4-Pin Screw Terminal Blocks | 440R-A23209 |
| Bag of 4, 4-Pin Spring Clamp Terminal Blocks | 440R-A23228 |
Approximate Dimensions
Dimensions are shown in mm (in.). 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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| Light Curtain, Manual Reset with Manual Reset | 115V/230V AC Supply, 24V DC, Dual Channel, Automatic Reset, Monitored Output | |
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| Dual Channel E-Stop, Monitored Manual Reset, Monitored Output | Safety Mat, Automatic Reset, No Output Monitoring | |