MSR57P
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Description
The MSR57P speed monitoring safety relay is designed to solve motion applications which require interaction by personnel during operation. It connects to any drive and monitors the speed using currently installed encoders. The MSR57P can be configured to unlock the access door only when the machine is either stopped or at a safe speed defined by the user. If required, the speed monitoring relay can monitor an enabling switch to constantly monitor personnel while in the hazardous area. Other supported functions are safe maximum speed and zero speed detection.
The MSR57P can be configured and monitored via two methods: drive explorer using a PC and the standard HIM device. During configuration, the user can set a variety of parameters to the specific requirements of their application including type of input devices, quantity, door locking and monitoring, enabling switches and a maintenance (safe speed) mode.
The MSR57P can easily be adapted to current installations with standard drives or drives with the safe-off feature. The safety relay uses standard outputs to control the drives speed but uses safety outputs to control the outputs of the drive. The speed is determined by using an encoder(s). This device can monitor the encoder data which is already transmitting to the drive, assuming an encoder is already installed, or a new encoder can be installed and only connected to the MSR57P. Two encoders are needed for Category 4, SIL 3 applications which cannot exclude shaft slippage and breakage.
This device also supports multiple axis applications. During configuration, it can be setup to be the first, middle or last axis in the chain. This is important since the input devices will all be installed on the first unit only while the output devices are connected to the last MSR57P in the chain.
Features
- SIL 3 IEC 61508
- Category 4 per EN 954-1
- Stop category 0, 1, 2
- Six N.O. solid-state safety outputs
- Four solid-state auxiliary outputs
- One or two encoders (sin/cos and TTL)
- Eight diagnostic LEDs
- DPI configuration port
- 67.5 mm DIN Rail housing
- Removable terminals
Specifications
| Safety Ratings | |
| Standards | EN 954-1, ISO 13849-1, ISOTR 12100, IEC/EN 60204-1, ANSI B11.19, AS4024.1 |
| 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: See website MTTFd: See website 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 | cULus, c-Tick, and TÜV |
| Power Supply | |
| Input Power Entry | 24V DC, 0.8…1.1 x rated voltage PELV/SELV |
| Power Consumption | 5 W |
| Inputs | |
| Safety Inputs | 1 N.C. & 1 N.O., 2 N.C., 1 N.C., 2 OSSD |
| Input Simultaneity | Infinite or 3 sec (configurable) |
| Input Resistance, Max. | 4 K W |
| Reset | Auto./Manual or Manual Monitored |
| Response Time | Configurable |
| Outputs | |
| Safety Contacts | 6 N.O. Solid State |
| Auxiliary Contacts | 4 N.O. solid state |
| Current, Max | Outputs 14, 24, 68, 78 24V DC, 2 A, short‑circuit protected Outputs 34, 44 24V DC, 100 mA, short‑circuit protected Outputs Y35, Y37 24V DC, 50 mA, short‑circuit protected Door switches 51, 52 24V DC, 750 mA, short‑circuit protected Outputs Y1, Y32, Y33 24V DC, 100 mA, short‑circuit protected Pulse Outputs S11, S21 24V DC, 100 mA, short‑circuit protected Pulse Inputs S12, S22, S32, S42, S52, S62, S72, S82, X32, X42, S34, Y2 8.5 mA per input |
| 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 | 35 mm DIN Rail |
| Weight [g (lb)] | 335 (0.74) |
| 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
| Inputs | Safety Outputs | Auxiliary Outputs | Terminals | Reset Type | Power Supply | Cat. No. |
| 5 x 1 N.C., 2 N.C., LC, 1 N.O. + 1 N.C. | 6 N.O. solid state | 4 N.O. solid state | Removable | Auto./Manual or Manual Monitored | 24V DC | 440R-S845AER-NNL |
Accessories
| Description | Cat. No. |
| MSR57 Encoder cable with flying leads (2.5 meters) | 1585J-M8RB-2M5 |
| 3 meter cable HIM | 1202-C30 |
| 1 meter cable HIM | 1202-C10 |
| AnaCANda serial converter (RS232) | 1203-SSS |
| AnaCANda USB converter | 1203-USB |
| HIM full numeric LCD IP20 (NEMA 1) | 20-HIM-A3 |
| Kinetix 6000/7000 low profile connector kit | 2090-K6CK-Dxxx |
| Kinetix 2000 low profile connector kit | 2090-K2CK-D15M |
| HIM to MSR 57 cable (1 meter) | 20-HIM-H10 |
| Sin/Cos encoder (1024 PPR) | 842HR-xJxxx15FWY2 |
| TTL encoder (size 20) | 845T-xxxxxxx |
| TTL encoder (size 25) | 845H-SJxxx4xxYxx |
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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Note: Cat. 1 stop, 1 encoder, door monitoring, safe limited speed, PowerFlex 70 without safe off.
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Note: Cat. 1 stop, 1 encoder, door monitoring, enabling switch, safe limited speed, PowerFlex 70 with safe off.
Application Details
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Operating Conditions
- The door is closed and locked with a TLS3 safety switch
- The machine is running at normal speed
Maintenance Conditions
- In order to remove a jam condition or during start-up personnel must enter the hazardous area.
- The operator moves Limited Speed Selector switch to “enable.”
- The MSR57 monitors speed profile and verifies drive is reducing speed per the preconfigured profile.
- Once the speed is equal to or below limited speed value, the door is unlocked.
- If configured, user must hold enabling switch in the middle position before opening door. Otherwise the machine will shutdown.
- The operator performs maintenance on the machine.
- Once maintenance is complete, the operator exits machine, closes door and moves the safe limited speed switch to "maintenance" mode BEFORE releasing the enabling switch.
- The machine will resume normal speed according to the drive profile.
Remarks
- The MSR57 can also monitor if the speed has exceeded a preconfigured value and shutdown the process.
- The MSR57 is compatible with all drives and uses standard inputs on the drive to perform controlled start and stop sequences.
- Pressing the E-stop at any time, will cause the machine to stop according to the preconfigured stop mode.
- The MSR57 can also be used in cascading applications with multiple MSR57s and drives.