توضیحات

Description

The single channel Relay Output, D5091S is a relay module suitable for the switching of safety related circuits, up to SIL 3 level according to IEC 61508:2010 Ed.2 for high risk industries. It provides isolation between input and output contacts.
Two mutually exclusive (by DIP-Switch programming) monitoring circuits are provided:
1) line input monitoring, to allow DCS/PLC line monitoring function: when enabled, the module permits a wide compatibility towards different DCS/PLC. Driving line pulse testing, executed by DCS/PLC, is permitted by a dedicated internal circuit, to prevent relay and LED flickering.
2) low voltage input monitoring: when enabled, the module reflects a high impedance state to the control unit when the driving voltage is below the specified threshold.

D5091S provides 1 SPDT contact for two different safety functions:
1) SIL 3 Safety Function for Normally De-Energized load (energized in fail safe state)is available at Terminal Blocks 7-8. The driving signal is normally low (0 Vdc),the relay is normally de-energized, contact is open and load is de-energized. The safety function is met when the driving signal is high (24 Vdc),the relay is energized, contact is closed and load is energized. At Terminal Blocks 9-10 is also available a service contact (for service load) with opposite (not SIL) function.
2) SIL 3 Safety Function for Normally De-Energized load (energized in fail safe state)is available at Terminal Blocks 9-10. The driving signal is normally high (24 Vdc), the relay is normally energized, contact is open and load is de-energized. The safety function is met when the driving signal is low (0 Vdc), the relay is de-energized, contact is closed and load is energized. At Terminal Blocks 7-8 is also available a service contact (for service load) with opposite (not SIL) function.

Mounting on standard DIN-Rail or on customized Termination Boards, in Safe Area / Non Hazardous Location or in Zone 2 / Class I, Division 2 or Class I, Zone 2.

Features

• Systematic capability SIL 3
  • Installation in Zone 2 / Division 2.
  • 1 SPDT contact for 2 different Safety Functions:
  1) SIL 3 for ND load (energized in fail safe state) with ND relay condition (energized in fail safe state)
  2) SIL 3 for ND load (energized in fail safe state) with NE relay condition (de-energized in fail safe state)
  • Line input monitoring in-field DIP Switch selectable.
  • Driving input voltage monitoring.
  • Input/Output isolation.
  • EMC Compatibility to EN61000-6-2, EN61000-6-4, EN61326-1, EN61326-3-1 for safety system.
  • Simplified installation using standard DIN-Rail and plug-in terminal blocks or customized Termination Boards.

Supply

24 Vdc nom (21.6 to 27.6 Vdc)

Channels

1

SIL level

SIL 3

Series

D5000

Input

24 Vdc nom (21.6 to 27.6 Vdc), reverse polarity protected. Relay coils are

internally protected with suppressor diodes.

Current consumption: 45 mA @ 24 Vdc, typical.

Power dissipation: 1.1 W @ 24 Vdc, typical.

Output

Voltage free SPDT relay contact. Terminals 7-8, open when relay deenergized,

close in energized condition. Terminals 9-10, close when relay

de-energized, open in energized condition.

Contact material: Ag Alloy (Cd free), gold plated.

Contact rating: 5 A 250 Vac 1250 VA, 5 A 250 Vdc 140 W (resistive load).

Contact min. switching current: 1 mA.

Contact inrush current: 6 A @ 24 Vdc, 250 Vac.

DC and AC load breaking capacity: refer to Instruction Manual.

Mechanical / electrical life: 5 * 10⁶ / 3 * 10⁴ operation, typical.

Operate / release time: 55 / 30 ms, typical.

Isolation

Input/Output 2.5 kV.

Environmental conditions

Operating temperature: temperature limits -40 to +70 °C.

Storage temperature: temperature limits -45 to +80 °C.

Mounting

DIN-Rail 35 mm, or on custom Term. Board.

Weight: about 125 g.

Connection: by polarized plug-in disconnect screw terminal blocks to

accommodate terminations up to 2.5 mm² (13 AWG).

Dimensions: Width 12.5 mm, Depth 123 mm, Height 120 mm.