MTLx514

MTL4514 – MTL5514SWITCH/PROXIMITY- DETECTOR INTERFACE

MTL4514

Hazardous areaTo earth-leakagedetector *654+Safe areasingle channel with line fault detection and phase reversal

680WTo earth-leakageLFDdetector *121110987LFDThe MTLx514 enables a safe–area load to be controlled, through a relay, by a proximity detector or switch located in a hazardous area. Line faults are signalled through a separate relay and indicated on the top of the module. Switches are provided to select phase reversal and to enable the line fault detection.

22kWSwitch-type sensorsrequire resistorsif LFD is selected32󰀆1Output131420 to 35V dcVs+Vs󰀆SPECIFICATION

See also common specification

Number of channels

One

Location of switch

Zone 0, IIC, T6 hazardous areaDiv.1, Group A, hazardous locationLocation of proximity detector

Zone 0, IIC, T4–6 hazardous area, if suitably certifiedDiv.1, Group A, hazardous locationHazardous–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. Line faults are indicated by an LED. Line fault relay is energised and channel output relay de-energised if input line-fault detectedOpen-circuit alarm on if Iin < 50µAOpen-circuit alarm off if Iin > 250µAShort-circuit alarm on if Rin < 100ΩShort-circuit alarm off if Rin > 360Ω

MTL5514

Hazardous areaTo earth-leakagedetector *654+Safe areaLFD680W22kWSwitch-type sensorsrequire resistorsif LFD is selected71011121314LFD32󰀆1OutputVs󰀆Vs+20 to 35V dc*Signal plug HAZ1-3 is required for access to this functionLED indicators

Green: power indication

Yellow: channel status, on when output energisedRed: LFD indication, on when line fault detectedMaximum current consumption

25mA at 24V dc

Power dissipation within unit

0.6W at 24VSafety description

Vo=10.5V Io=14mA Po=37mW Um = 253V rms or dcSIL capable

These models have been assessed for use in IEC 61508 functional safety applications. See data on MTL web site.

Note: Resistors must be fitted when using the LFD facility with a contact input500Ω to 1kΩ in series with switch20kΩ to 25kΩ in parallel with switch

Safe-area output

Channel: Single pole relay with changeover contactsLFD: Single pole relay with changeover contacts

Note: reactive loads must be adequately suppressed

Relay characteristics

MTL4514

Response time:Contact rating:

10ms maximum10W, 0.5A,

35V dc

MTL5514

10ms maximum

250V ac, 2A, cosØ >0.7,40V dc, 2A, resistive load

The given data is only intended as a product description and should not be regarded as a legal warranty of properties or guarantee. In the interest of further technical developments, we reserve the right to make design changes.

EUROPE (EMEA) Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283AMERICAS Tel: +1 281 571 8065 Fax: +1 281 571 8069ASIA PACIFIC Tel: +65 6 487 7887 Fax: +65 6 487 7997E-mail: enquiry@mtl-inst.com Web site: www.mtl-inst.com

Oct 2009