
7
D1092 - SIL 3 Relay Output ModuleG.M. International ISM0091-11
The proof test shall be performed to reveal dangerous faults which are undetected by diagnostic. This means that it is necessary to specify how dangerous undetected faults, which
have been noted during the FMEDA, can be revealed during proof test.
Proof test consists of the following steps:
Testing procedure at T-proof
Steps Action
1Bypass the safety-related PLC or take any other appropriate action to avoid a false trip.
2For each D1092D channel or for the D1092S single channel, verify input-output functionality for the two different applications :
1. normally energized (NE) loads (terminals “1” and “2” for 1st Channel Output; terminals “5” and “6” for 2nd Channel Output): supply each input channel
(terminals “13” and “14” for 1st Channel Input; terminals “15” and “16” for 2nd Channel Input) and verify that the corresponding load is energized; then, shut-
down each input channel and verify that the corresponding load is de-energized (safe state).
2. normally de-energized (ND) loads (terminals “3” and “4” for 1st Channel Output; terminals “7” and “8” for 2nd Channel Output): supply each input channel
(terminals “13” and “14” for 1st Channel Input; terminals “15” and “16” for 2nd Channel Input) and verify that the corresponding load is energized (safe state);
then, shutdown each input channel and verify that the corresponding load is de-energized.
3Remove the bypass from the safety-related PLC or restore normal operation.
This test reveals almost 99 % of all possible Dangerous Undetected failures in the relay module.
D1092 series are isolated electrical apparatus installed into standard EN50022 T35 DIN Rail located in Safe Area/Non Hazardous Locations or Zone 2, Group IIC, Temperature
Classification T4, Class I, Division 2, Groups A, B, C, D, Temperature Code T4 and Class I, Zone 2, Group IIC, IIB, IIA Temperature Code T4 Hazardous Area/Hazardous Locations
(according to EN/IEC60079-15, FM Class No. 3611, CSA-C22.2 No. 213-M1987, CSA-E60079-15) within the specified operating temperature limits Tamb -20 to +60 °C,
and connected to equipment with a maximum limit for AC power supply of 250 Vrms.
Non-incendive field wiring is not recognized by the Canadian Electrical Code, installation is permitted in the US only. For installation of the unit in a Class I, Division 2 or Class I, Zone 2
location, the wiring between the control equipment and the D1092 electrical apparatus shall be accomplished via conduit connections or another acceptable Division 2, Zone 2 wiring
method according to the NEC and the CEC. Not to be connected to control equipment that uses or generates more than 250 Vrms or Vdc with respect to earth ground.
D1092 series must be installed, operated and maintained only by qualified personnel, in accordance to the relevant national/international installation standards
(e.g. IEC/EN60079-14 Electrical apparatus for explosive gas atmospheres - Part 14: Electrical installations in hazardous areas (other than mines), BS 5345 Pt4, VDE 165,
ANSI/ISA RP12.06.01 Installation of Intrinsically Safe System for Hazardous (Classified) Locations, National Electrical Code NEC ANSI/NFPA 70 Section 504 and 505,
Canadian Electrical Code CEC) following the established installation rules. De-energize power source (turn off power supply voltage) before plug or unplug the terminal blocks when
installed in Hazardous Area/ Hazardous Locations or unless area is known to be nonhazardous.
Warning: substitution of components may impair Intrinsic Safety and suitability for Division 2, Zone 2.
Warning: de-energize main power source (turn off power supply voltage) and disconnect plug-in terminal blocks before opening the enclosure to avoid electrical shock
when connected to live hazardous potential. Explosion Hazard: to prevent ignition of flammable or combustible atmospheres, disconnect power before servicing or unless
area is known to be nonhazardous.
Failure to properly installation or use of the equipment may risk to damage the unit or severe personal injury.
The unit cannot be repaired by the end user and must be returned to the manufacturer or his authorized representative. Any unauthorized modification must be avoided.
Warning
Operation
D1092 relay modules are suitable for the switching of safety related circuits, providing isolation between the input and output contacts. D1092S provides 1 SPST contact for normally
energized (NE) loads and 1 SPST contact for normally de-energized (ND) loads. D1092D provides 2 SPST contacts for normally energized (NE) loads and 2 SPST contacts for normally
de-energized (ND) loads. The channels and the relay contacts are completely isolated.
For each channel, a “RELAY STATUS” yellow led lights when input is powered, showing that relay is energized and relay output contacts are closed.
Control
Equipment
D1092
Relay Output
FM Approved under
non-incendive field wiring
Unclassified Locations or
Hazardous (Classified) Locations
Class I, Division 2, Groups A, B, C, D, T-Code T4
Class I, Zone 2, Group IIC, IIB, IIA, T-Code T4
FM Approved under non-incendive field
wiring (permitted only for US installations),
or third party approval
Hazardous (Classified) Locations
Class I, Division 2, Groups A, B, C, D
Class II, Division 2, Groups E, F, G
Class III, Division 2
Class I, Zone 2, Group IIC, IIB, IIA
14
16
15
10
12
9
11
Must not use or generate
more than 250 Vrms or Vdc
Unclassified Locations
13
1
2
Non-incendive
Equipment
Non-incendive
Equipment
3
4
Non-incendive
Equipment
5
6
Non-incendive
Equipment
7
8
Control
Equipment
+
-
+
-