MTL5541A データシートの表示（PDF） - Unspecified
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MTL5541A Datasheet PDF : 29 Pages
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MTL5517 SWITCH/
Hazardous area
Safe area
PROXIMITY DETECTOR
INTERFACE
Switch-type sensors
require resistors
if LFD is selected
680W
To earth
leakage
detector
two-channel with line fault detection
and phase reversal
22kW
+6
5
LFD
4
680W
The MTL5517 enables two safe-area loads to be controlled, through a
relay, by proximity detectors or switches located in a hazardous area.
22kW
+
3
2
1
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.
EPS5517-2
7
LFD
8
9
Ch 2
10
LFD
11
12
Ch 1
13
Vs
14
Vs+
20 to 35V dc
SPECIFICATION
See also common specification
Number of channels
Two
Location of switch
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 by switches on the side of the module. LIne faults
are indicated by the LED for each channel.
Line fault relay is energised and channel output relay de-
energised if input line-fault detected
Open-circuit alarm on if Iin < 50µA
Open-circuit alarm off if Iin > 250µA
Short-circuit alarm on if Rin < 100Ω
Short-circuit alarm off if Rin > 360Ω
Note: Resistors must be fitted when using the LFD facility with a contact input
500Ω to 1kΩ in series with switch
20kΩ to 25kΩ in parallel with switch
Safe-area output
Channel: Two single-pole relays with normally open contacts
LFD:
Single pole relay with changeover contacts
Note: reactive loads must be adequately suppressed
Relay characteristics
Response time: 10ms maximum
Contact rating: 250V ac, 2A, cosØ >0.7
40V dc, 2A, resistive load
Terminal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Function
Input –ve (Ch 1)
Input +ve (Ch 1)
To earth leakage detector*
Input –ve (Ch 2)
Input +ve (Ch 2)
To earth leakage detector*
Line fault detection
Output (Ch 2)
Output (Ch 2)
Line fault detection
Output (Ch 1)
Output (Ch 1)
Supply –ve
Supply +ve
*Signal plug HAZ1-3 is required for access to this function
LED indicators
Green: power indication
Yellow: two: channel status, on when output is 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)
Vo=10.5V Io=14mA Po=37mW Um = 253V rms or dc
The given data is only intended as a product description and should not be re-
garded 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 422283
AMERICAS
Tel: +1 281 571 8065
Fax: +1 281 571 8069
ASIA PACIFIC
Tel: +65 6 487 7887
Fax: +65 6 487 7997
E-mail: enquiry@mtl-inst.com Web site: www.mtl-inst.com
Aug 2008
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