SCR-2

Safety monitoring relay IDEM SCR-2.

IDEM's SCR-2 is an all purpose Safety Monitoring Relay that ensures the quick and safe deactivation of the moving parts of a machine in case of danger.

Applications include single and dual channel emergency stop circuits or dual channel safety guard monitoring using Tongue Switches or Non Contact Switches.

The internal logic system closes the relay safety outputs when the start button is pressed.

Features:

• Two Force Guided Safety Output Contacts.
• Standards: EN60204-1, EN954-1, ISO13849-1, EN62061.
• 22.5mm Din Rail Mounting.
• Single or Dual Channel input with LED indication of input status.
• Redundancy and cycle monitoring.
• Feedback loop for monitoring contacts or expansion modules.
• Short circuit and earth fault monitoring.

Specification:

Standards:

• EN60204-1
• ISO13849-1:
• Performance Level: e
• Category (ISO13849-1): 4
• MTTFd: 848 years
• DC (average): 99%
• Proof Test Interval (Life): 20 years
• Safety Data Annual Usage: 365 days per year/24 hours per day; Test cycle 3600 seconds/cycle; Full load AC15
• EN62061:
• SILCL: 3
• Proof Test Interval (life): 20 years
• Hardware Fault Tolerance: 1
• DC (average): 99%
• PFHd: 1.2 x 10-8

Safety Classification and Reliability Data:

• Monitored Safety Inputs Circuits: 2NC or 1NC
• Safety Switching Outputs: 2NC positively guided
• Operating Voltage: 24Vac/dc
• Supply Deviation: +/-10%
• Control Voltage at S11: 24Vdc
• Control Current S11 to S14: 40mA approx.
• Monitored Reset Circuit Loop: Auto or Monitored Manual Reset
• Maximum Line Conductor Cross Section: 2.5 sq mm
• Maximum Length of Control Line: 1000m with 0.75 sq mm
• Contact Material: AgNi
• Indication - Green:
• LED1 internal relay K1 energised
• LED2 internal relay K2 energised
• LED1 and LED2 OSSD closed
• Contact Service Life: Mechanical 1x107; Electrical 1x105
• Safety Contact Breaking Capacity:
• AC: 250V, 1500VA, 6A, ohmic; 230V, 4A for AC15
• DC: 24V, 30W, 1.25A, ohmic; 24V, 30W, 2.0A for DC-13
• External Fuse Protection - Safety Outputs: 4A slow blow or 6A quick blow
• Minimum Voltage and Current: 24V, 20mA dc
• Response Time on Output Opening: 90ms
• Rated Insulation Voltage: 250V
• Protection: IP20
• Rated Impulse Withstand Voltage: 4kV
• Operating Temperature: -15°C ~ 40°C
• Mounting: 22.5mm DIN rail
• Weight: 170g approx.

Warranty: 36 months

Ordering Information:

• SCR-2 180001 - Terminal type: Standard Screw Terminals; Supply voltage: 24VAC/VDC; Switch input circuits: 2NC; Output contacts: 2NC
• SCR-2 180001-P - Terminal type: Pluggable Screw Terminals; Supply voltage: 24VAC/VDC; Switch input circuits: 2NC; Output contacts: 2NC