D1031
- SIL 2 Switch / Proximity Detector Repeater Transistor Output
G.M. International ISM0009-17
10
Start-up
Before powering the unit check that all wires are properly connected, particularly supply conductors and their polarity, input and output wires, also check that Intrinsically Safe conductors
and cable trays are segregated (no direct contacts with other non I.S. conductors) and identified either by color coding, preferably blue, or by marking. Check conductors for exposed
wires that could touch each other causing dangerous unwanted shorts. Turn on power, the “power on” green led must be lit, status and fault led on each channel must be in accordance
with condition of the corresponding input line. If possible close and open input lines one at time checking the corresponding status and fault leds condition as well as output to be correct.
Installation
D1031 series are switch/proximity detector repeaters housed in a plastic enclosure suitable for installation on T35 DIN Rail according to EN50022.
D1031 unit can be mounted with any orientation over the entire ambient temperature range.
Electrical connection of conductors up to 2.5 mm² are accommodated by polarized plug-in removable screw terminal blocks which can be plugged in/out into a powered unit
without suffering or causing any damage
(for Zone 2 or Division 2 installations check the area to be nonhazardous before servicing)
.
The wiring cables have to be proportionate in base to the current and the length of the cable.
On the section “Function Diagram” and enclosure side a block diagram identifies all connections and configuration DIP switches.
Identify the number of channels of the specific card (e.g. D1031D is a dual channel model and D1031Q is a quad channel model), the function and location of each connection terminal
using the wiring diagram on the corresponding section, as an example:
Connect 12-24 Vdc power supply positive at terminal “3” and negative at terminal “4”.
For Model D1031Q connect common output of channel 1-3 at terminal “2” and transistor output at terminal “1” for channel 1 and “7” for channel 3.
For Model D1031Q connect common output of channel 2-4 at terminal “6” and transistor output at terminal “5” for channel 2 and “8” for channel 4.
For Model D1031D connect proximity sensor or voltage free contact at terminal “13” positive and “14” negative for channel 1, connect at terminal “15” and “16” respectively for channel 2.
For Model D1031Q in addition to channel 1-2 connections above, connect terminal “9” positive and “10” negative for channel 3 and “11” positive and “12” negative for channel 4.
Intrinsically Safe conductors must be identified and segregated from non I.S. and wired in accordance to the relevant national/international installation standards
(e.g. EN/IEC60079-14 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), make sure that conductors are well isolated from each other and do not produce any unintentional connection.
Connect SPST output transistors checking the load rating to be within the maximum rating (100 mA, 35 V resistive load).
The enclosure provides, according to EN60529, an IP20 minimum degree of mechanical protection (or similar to NEMA Standard 250 type 1) for indoor installation, outdoor installation
requires an additional enclosure with higher degree of protection (i.e. IP54 to IP65 or NEMA type 12-13) consistent with the effective operating environment of the specific installation.
Units must be protected against dirt, dust, extreme mechanical (e.g. vibration, impact and shock) and thermal stress, and casual contacts.
If enclosure needs to be cleaned use only a cloth lightly moistened by a mixture of detergent in water.
Electrostatic Hazard: to avoid electrostatic hazard, the enclosure of D1031 must be cleaned only with a damp or antistatic cloth.
Any penetration of cleaning liquid must be avoided to prevent damage to the unit. Any unauthorized card modification must be avoided.
According to EN61010, D1031 series must be connected to SELV or SELV-E supplies.
Operation
D1031 accepts as an input from Hazardous Area/Hazardous Locations a proximity sensor or voltage free electrical contact and repeats their status to Safe Area/Non Hazardous
Locations by optoisolated open collector transistor. Presence of supply power and status of output (energized or de-energized), as well as integrity or fault condition of sensor and
connecting line are displayed by signaling LEDs (green for power, yellow for status and red for fault condition). D1031Q (quad channel type) has four independent input channels and
actuates the corresponding output transistor; two actuation modes can be independently DIP switch configured for each input channel:
Normally open input / Normally close transistor or Normally close input / Normally close transistor.
Contact or proximity sensor and its connection line short or open circuit fault detection is also DIP switch configurable. Fault detection can be enabled (in case of fault de-energizes the
corresponding output channel transistor (open) and turns ON the fault LED) or be disabled (in case of fault the corresponding output channel transistor repeats the input line open or
close status as configured). D1031D (dual channel type) has two input channel and four output transistors; the unit has two DIP switch configurable operating modes:
A) Input channel actuates in parallel output transistors (providing a DPST type of output). Transistors actuation can be independently configured for each output in two modes:
Normally open input / Normally close transistor or Normally close input / Normally close transistor
B) Input channel actuates output transistor (A) configurable in two modes as above. Output transistor B operates as fault output (in case of input fault, transistor B actuates and the
fault LED turns on while transistor A repeats the input line as configured). Actuation can be configured in two modes:
No input fault / Close transistor (it de-energizes in case of fault) or No input fault / Open transistor (it energizes in case of fault).
Note:
use of voltage free electrical contacts with fault detection enabled requires, near the switch at the end of the line, a 1 K
Ω
series connected resistor and a 10 K
Ω
parallel connected
resistor in order to allow the fault detection circuit to distinguish between a condition of contact close/open and a line open/short circuit fault.