SafeC S to MSR127 Conversion

Transcription

1 Application Note SafeC S to MSR127 Conversion IMPORTANT: A risk assessment must be completed to assure that all tasks and hazards are considered and confirm that the example circuit will provide adequate risk reduction. 1) Purpose 2) References a. The purpose of this document is to describe typical ways in which the MSR127 Minotaur Safety Relay (MSR) can be applied in SafeC S applications. The SafeC S is 24VDC powered unit. Only 24VDC versions of the MSR127 will be included. b. The MSR127 is a versatile monitoring safety relay. Its performance in a safety system depends on what devices are connected to it. a. S116-CA001A-EN-P, Safety Products Catalog 3) Product Selection Chart* Terminals Power Supply Reset Type Catalog Number Removable 24V AC/DC Automatic / Manual MSR127TP 440R-N23132 Monitored Manual MSR127RP 440R-N23135 * On the Safe C S Automatic and Monitored Manual Reset are switch selected. The MSR127 comes in two versions. The MSR127RP provides Monitored Manual Reset. The MSR127TP can be wired for either Automatic Reset or (Non-Monitored) Manual Reset. SafeC S to MSR127 conversion - with Reset Note Page 1 of 8 5/14/2009

2 Table of Contents 1) Purpose...1 2) References...1 3) Product Selection Chart...1 4) Table of Contents...2 5) Resets.2 6) Connection Diagrams 4 a) Manual Reset Light Curtain Input...4 b) Monitored Manual Reset Light Curtain Input...5 c) Automatic Reset - Light Curtain Input...6 d) Manual Reset - E-Stop Input...7 5) Product Comparison...8 Resets: b. The MSR127 has either automatic/manual or monitored manual reset, depending on the model selected, see Product Selection Chart. c. The reset circuit is connected between terminals S12 and S34. For OSSD inputs the reset should be connected between S52 and S34. d. The MSR127 checks the reset circuit after its inputs are satisfied. e. Once the output of the MSR127 is energized, the reset circuit is not used until the inputs are cycled again. 2. Automatic/Manual a. The type MSR127TP (440R-N23132) is internally configured for automatic / manual reset. b. This type of reset is sometimes a jumper. A switch or contact can also be added to this circuit, Figure 1. Automatic / Manual Reset Alternatives SafeC S to MSR127 conversion - with Reset Note Page 2 of 8 5/14/2009

3 3. Monitored Manual a. The type MSR127RP (N440R-23135) is internally configured for monitored manual reset. b. The monitored manual reset requires the reset circuit to be open when the inputs are closed. c. The reset contact is typically operated by hand, but can be operated by a PLC. Figure 1. Monitored Manual Reset 4. Output Monitoring is used by the MSR127 to determine the status of certain devices. d. The monitoring is accomplished by adding normally closed contacts, in series, in the reset circuit: terminals S12 to S34. For OSSD inputs the reset should be connected between S52 and S34. The monitored contacts must not be connected in parallel. e. These devices must be in the closed state, prior to the MSR127 energizing its outputs. f. Typical devices are contactors, control relays, expansion relays, and solenoid locking contacts. g. The number of devices that can be monitored is limited by the resistance tolerated by the MSR127. This resistance is 110 ohms. Figure 2. Monitoring of Contactors SafeC S to MSR127 conversion - with Reset Note Page 3 of 8 5/14/2009

4 a) Automatic Reset Light Curtain Input Connection Diagrams Figure 4. SafeC S Automatic Reset * * switch selectable Figure 5. Light Curtain, Automatic Reset, No Output Monitoring SafeC S to MSR127 conversion - with Reset Note Page 4 of 8 5/14/2009

5 b) Manual Reset Light Curtain Input Connection Diagrams Figure 6. SafeC S Manual Reset * * switch selectable Figure 7. Light Curtain, Manual Reset, No Output Monitoring SafeC S to MSR127 conversion - with Reset Note Page 5 of 8 5/14/2009

6 Connection Diagrams c) Monitored Manual Reset Light Curtain Input External Contact Monitoring Figure 8. SafeC S Manual Reset *Monitored Output * switch selectable Figure 9. Light Curtain, Monitored Manual Reset, Monitored Output SafeC S to MSR127 conversion - with Reset Note Page 6 of 8 5/14/2009

7 Connection Diagrams d) Manual Reset E-Stop Input Figure 10. SafeC S Manual Reset* * switch selectable Figure 11. Dual Channel E-Stop, Manual Reset, No Output Monitoring SafeC S to MSR127 conversion - with Reset Note Page 7 of 8 5/14/2009

8 Product Comparison Specifications MSR127 SafeC S Safety Classification Cat. 4 per EN 954-1(ISO ) Cat. 4 per EN SIL 3 per EN IEC Ple per ISO Functional safety Data PFH D: 1.45 X Certifications MTTFd: 398 years - CE marked for applicable directives, culus, TŰV c CSAus, CE, EN 954-1(Cat.4) ISO 9001: 2000 Supply Voltage 24V AC/DC 24VDC Power Consumption 2W 2W Inputs 1 N.C., 2 N.C., Light Curtain 1 N.C., 2 N.C., Light Curtain Reset Auto/Manual/Monitored Manual Auto/Manual Response Time 15ms 18ms Indicators (3) Power, CH 1, CH 2 (3) Power, CH 1, CH 2 Outputs Safety Contacts 3 N.O 2 N.O. Auxiliary 1 N.C. 1 N.C. Thermal Current / lth 24V AC/DC - 3 x 4A, 2 x 5A Non-switching 115/230V AC - 3 x 3A, 2 x 4A, 1 x 5A 250V AC - 1 x 8A, 2 x 7A Switching current@ 10V > > 1mA minimum Voltage Electrical Life to AC 15 Operations Switching Cycles with surge suppression 250V AC/2.5 A/625VA : 5 X V AC/2 A : 10 5 switching cycles (EN ) Mechanical Life 2,000,000 operations 10,000,000 switching cycles Environmental Data enclosure IP40 IP40 terminals IP20 IP20 Operating Temperature -5 to 55 deg. C -15 to 55 deg. C Dimensions 22.5 X 99 x mm 22.5 x 84 x 118 mm mounting 35mm DIN rail 35mm DIN rail Figure 12. SafeC S to MSR127 conversion - with Reset Note Page 8 of 8 5/14/2009