PR Electronics 7916 – System 9000 Backplane

Features

  • Provides safe, easy wiring between the backplane and non I.S. automation systems using standard prefabricated I/O cables
  • Direct, Redundant and Duplicate signalling – including HART I/O
  • Robust, compact high-end design solution for 8 system 9000 units
  • Digital output and LEDs indicate backplane system status
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PR Electronics 7916 – System 9000 Backplane

Application

  • PR Electronics 7916 backplane offers a compact and sturdy solution for safely and conveniently connecting PR System 9000 IS device signals to standard automation systems.
  • Standard automation system cables and connectors are utilized to link the backplane to the I/O cards.
  • The backplane supports Direct, Redundant, and Duplicate signaling, including HART I/O System connectivity (HART MUX).
  • System 9000 devices isolate and convert AI, AO, DI, and DO signals from or to the I.S. classified area, directing them to a system automation I/O card.
  • Even when integrated into the backplane solution, System 9000 units maintain SIL2 level functional safety.

Technical Characteristics

  • Features a robust, compact high-end design capable of holding 16 System 9000 units.
  • Digital output indicates the status of 9000 devices and primary/back-up power supplies.
  • Supports flexible 24 VDC supply voltage and redundant power supply connections.

Mounting / Installation / Programming

  • Can be flexibly mounted horizontally, vertically, on panels, or walls in Safe or Zone 2 / Div 2 areas.
  • System 9000 devices easily attach and detach using piano keys and support hot-swapping.
  • Tag number and ID labels can be easily mounted and read using the dedicated piano key spacer.
  • Operates effectively across a wide temperature range from -20°C to +60°C.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -20°C to +60°C
Storage temperature -40°C to +85°C
Relative humidity < 95% RH (non-cond.)
Installation in Pollution degree 2 & meas. / overvoltage cat. II
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD) 144 x 443 x 141 mm
Wire size 2.5 mm2 / AWG 12 (Supply 1 / 2 and status relay connectors)
COMMON SPECIFICATIONS
Supply
Supply voltage 20…31.2 VDC (24 DC nom.)
Max. required power ≤ 60 W
Isolation voltage
Isolation voltage, test / working 500 VAC / 50 VAC (Basic isolation between supply 1 & 2 and status relay)
Replaceable fuses Fuse F1 & F2: 3.15 A SB, 250 V, type TR5
OUTPUT SPECIFICATIONS
Status relay
Max. voltage 32 V (Zone 2 / Div. 2 area) 42 V (Safe area)
Max. current 100 mA (Zone 2 / Div. 2 area) 100 mA (Safe area)
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
EAC TR-CU 020/2011
APPROVALS
UL UL 508 / C22.2 no. 14
ATEX DEKRA 13ATEX0136X
IECEx DEK 13.0044X
FM 0003049918-C

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PR Electronic 7916 System 9000 backplane-DpstarGroup