Catalogs > Safety Products Catalog > Logic > Safety Relays > Single-Function Safety Relays > Delayed Outputs > MSR138DP
MSR138DP
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Description
The MSR138DP can be connected in 3 different input wiring configurations: 1 normally closed, 2 normally closed, or 2 OSSD. When connected in the two normally closed fashion, the MSR138DP checks for cross faults across the two inputs. When connected to light curtains, the light curtain must perform the cross-fault detection.
The MSR138DP 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 MSR138DP 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 MSR138DP checks the output monitoring circuit through the manual application of the reset switch. The unit cannot be reset until the timing function has completed.
The outputs of the MSR138DP include two normally open immediate safety outputs and three normally open delayed safety outputs. The outputs of the MSR138.1DP include two normally open immediate safety rated outputs, two normally open delayed safety outputs and one normally closed delayed safety output. The safety outputs have independent and redundant internal contacts to support the safety function. If a reset request is made during the time cycle, it will cause a lockout condition. Cycle inputs after timing has completed and reset after the delay time has expired to clear lockout. Connecting contacts 55-56 of the MSR138.1DP in series to Y1-Y2 can avoid this lockout.
A normally closed timer reset switch can be added to force the delayed contacts open prior to the completion of the timing cycle.
Features
- Category 4/3 per EN 954-1
- Stop category 0 and 1
- Light curtain, E-stop, safety gate inputs
- Two immediate safety outputs
- Delayed outputs: 3 N.O. safety or 2 N.C. safety and 1 N.C. aux.
- Cross fault monitoring
- Monitored or automatic reset
- Removable terminals
LED Indicators
| Green | Power—Illuminates when power on |
| Green | Start—Illuminates when S33-S34 is closed |
| Green | CH1 IN—Illuminates when channel 1 input is closed |
| Green | CH2 IN—Illuminates when channel 2 input is closed |
| Green | CH1—Illuminates when K1 is closed |
| Green | CH2—Illuminates when K2 is closed |
| Green | CHT1—Illuminates during timing period |
| Green | CHT2—Illuminates during timing period |