MTL4516/C - MTL5516C- Switch / proximity detector interface
  • MTL4516/C - MTL5516C- Switch / proximity detector interface

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Manufacturer: MTL Instruments

MTL4516 / C-MTL5516C 2-channel separator

The MTLx516/C enable two safe-area loads to be controlled by a switch or proximity detector located in a hazardous-area. When selected, open or short circuit conditions in the field wiring are detected by the line-fault-detect (LFD) facility and also indicated on the top of the module. Phase reversal for each channel is selected by a switch on the side of the module and output is provided by changeover relay contacts.

Specification


Number of channels Two
Location of switches Zone 0, IIC, T6 hazardous area
Div 1, Group A hazardous location
Location of proximity detector Zone 0, IIC, T4–6 hazardous area if suitably certified
Div.1, Group A, hazardous location
Hazardous-area inputs Inputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)
Voltage applied to sensor 7 to 9V dc from 1kΩ ±10%
Input/output characteristics Normal phase:
• Outputs closed if input > 2.1mA (< 2kΩ in input circuit)
• Outputs open if input < 1.2mA (> 10kΩ in input circuit)
Hysteresis: 200μA (650Ω) nominal
Line fault detection (LFD) (when selected)* User-selectable via switches on the side of the unit
Open-circuit alarm on if Iin < 50 uA
Open-circuit alarm off if Iin > 250 uA
Short-circuit alarm on if Rin < 100 Ohm
Short-circuit alarm off if Rin > 360 Ohm
Safe-area output Channel: Two single-pole relays with normally open contacts LFD: Single pole relay with changeover contact (MTL4517) Single pole relay with normally open contact (MTL5517)
LED indicators Green: power indication Yellow: two: channel status, on when output energised Red: two: LFD indication, on when line fault detected
Maximum current consumption 35mA at 24V
Power dissipation within unit 0.84W at 24V
Safety description (each channel) Uo=10.5V Io=14mA Po=37mW Um = 253V rms or dc

(*) Resistors must be fitted when using the LFD facility with a contact input:
500 Ohm to 1kΩ in series with switch
20 kOhm to 25kΩ in parallel with switch
(**) Note: reactive loads must be adequately suppressed.

Relay characteristics


 MTL4516/CMTL5516C
Response time Max 10 ms 10ms maximum
Contact rating (Safe Area) 10W, 0.5A, 35V DC 250V ac, 2A, cosØ >0.7, 40V dc, 2A, resistive load
Contact rating (Zone 2) 10W, 0.5A, 35V DC 35V, 2A, 100VA



SIL capable


These models have been assessed for use in IEC 61508 functional safety applications. SIL2 capable for a single device (HFT=0) SIL3 capable for multiple devices in safety redundant configurations (HFT=1)

See data on MTL web site and refer to the safety manual



MTL4516





MTL4516C





MTL5516C


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The MTLx516/C enable two safe-area loads to be controlled by a switch or proximity detector located in a hazardous-area. When selected, open or short circuit conditions in the field wiring are detected by the line-fault-detect (LFD) facility and also indicated on the top of the module. Phase reversal for each channel is selected by a switch on the side of the module and output is provided by changeover relay contacts.

Specification


Number of channels Two
Location of switches Zone 0, IIC, T6 hazardous area
Div 1, Group A hazardous location
Location of proximity detector Zone 0, IIC, T4–6 hazardous area if suitably certified
Div.1, Group A, hazardous location
Hazardous-area inputs Inputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)
Voltage applied to sensor 7 to 9V dc from 1kΩ ±10%
Input/output characteristics Normal phase:
• Outputs closed if input > 2.1mA (< 2kΩ in input circuit)
• Outputs open if input < 1.2mA (> 10kΩ in input circuit)
Hysteresis: 200μA (650Ω) nominal
Line fault detection (LFD) (when selected)* User-selectable via switches on the side of the unit
Open-circuit alarm on if Iin < 50 uA
Open-circuit alarm off if Iin > 250 uA
Short-circuit alarm on if Rin < 100 Ohm
Short-circuit alarm off if Rin > 360 Ohm
Safe-area output Channel: Two single-pole relays with normally open contacts LFD: Single pole relay with changeover contact (MTL4517) Single pole relay with normally open contact (MTL5517)
LED indicators Green: power indication Yellow: two: channel status, on when output energised Red: two: LFD indication, on when line fault detected
Maximum current consumption 35mA at 24V
Power dissipation within unit 0.84W at 24V
Safety description (each channel) Uo=10.5V Io=14mA Po=37mW Um = 253V rms or dc

(*) Resistors must be fitted when using the LFD facility with a contact input:
500 Ohm to 1kΩ in series with switch
20 kOhm to 25kΩ in parallel with switch
(**) Note: reactive loads must be adequately suppressed.

Relay characteristics


 MTL4516/CMTL5516C
Response time Max 10 ms 10ms maximum
Contact rating (Safe Area) 10W, 0.5A, 35V DC 250V ac, 2A, cosØ >0.7, 40V dc, 2A, resistive load
Contact rating (Zone 2) 10W, 0.5A, 35V DC 35V, 2A, 100VA



SIL capable


These models have been assessed for use in IEC 61508 functional safety applications. SIL2 capable for a single device (HFT=0) SIL3 capable for multiple devices in safety redundant configurations (HFT=1)

See data on MTL web site and refer to the safety manual



MTL4516





MTL4516C





MTL5516C


Less
Read more

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