TRIP AMPLIFIER. MTL5521 Datasheet

MTL5521 AMPLIFIER. Datasheet pdf. Equivalent

Part MTL5521
Description FREQUENCY TO CURRENT CONVERTER AND TRIP AMPLIFIER
Feature www.DataSheet4U.com Hazardous area Safe area MTL5521 FREQUENCY TO CURRENT CONVERTER AND TRIP AMPL.
Manufacture ETC
Datasheet
Download MTL5521 Datasheet




MTL5521
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MTL5521 FREQUENCY TO
CURRENT CONVERTER
AND TRIP AMPLIFIER
The MTL5521 converts a frequency or rotational speed signal from a
proximity detector located in the hazardous area into
a 0/4–20mA current signal suitable for driving safe area loads.
A display located on the top indicates the frequency.
The analogue output provides either a 0–20mA or 4–20mA signal
that is proportional to the rotational speed or frequency of the input.
A relay output is provided, with two configurable set points, allowing
monitoring of the input frequency. When the input frequency is within
this window the relay is energised and a yellow LED is illuminated.
A start-up delay is triggered by a NO contact allowing the system to
start up without creating false alarms.
Configuration settings are made by two push button switches
located on the front of the unit allowing the following parameters to
be displayed and configured:
• Output current either 0–20mA or 4–20mA
• 0/4mA and 20mA frequency values
• Line fault detection: Off, wire-break and/or short circuit
• Upper and lower threshold values of the set point relay
(including hysteresis)
• Start uptime delay 0 to 1000s
• Filter time constant
• Scaling factors
A line fault detect facility detects open and/or short circuits in the
field. When a fault is detected the relay de-energises and the yellow
LED changes to red.
SPECIFICATION
Number of channels
One, with a configurable alarm
Location of delay 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 input (Rotation sensor)
Frequency input
0 to 10kHz
Pulse width
20µs
Start-up delay
0 to 1000s (adjustable)
Input circuits
Input conforms to NAMUR/DIN 19234
Voltage applied to sensor
8.2V from 1k
Input characteristics
Switching threshold
1.55mA
Open-circuit threshold
<0.1mA
Short-circuit threshold
>6mA
Safe-area output
Signal range
0/4 to 20mA
Safe-area load resistance 0 to 500
Filter time constant
0 to 60s in 80ms increments
Relay type
Single-pole changeover relay
Relay characteristics
Switching voltage
<250V ac/120V dc
Switching current
<2A
Switching capacity
<500VA/60W
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Green
Power
Yellow K1
Set point relay status
Yellow (Red)
Pulse indication (fault)
Hazardous area Safe area
NAMUR
Sensor
Start up
delay
+
19
2
3
10
4 11
5 12
6
7
8
V or I
13
14
Load
15
16
Vs+
Vs–
**
** see 'Power supply' for options
Terminal
5
6
7
8
9
10
11
12
13
15
16
Function
Namur Sensor +ve
Namur Sensor –ve
Start up delay +ve
Start up delay –ve
0/4–20mA output +ve
Speed Monitor
Speed Monitor
Speed Monitor
0/4–20mA output –ve
Supply +ve
Supply –ve
Power supply
230V ac nominal, 184–264V ac, 48–62Hz (MTL5521-11-230)
115V ac nominal, 98–126V ac, 48–62Hz (MTL5521-11-115)
24V dc nominal, 19–29V dc, <10% ripple (MTL5521-11-24)
Power consumption
<5VA/5W
Isolation
250V rms between input, output and power supply terminals,
tested at 2.5kV rms between safe and hazardous terminals
Terminals
Each terminal will accommodate 2x2.5mm2 conductors
Mounting
On 35mm (top hat) rail
Location of units
Safe area
Ambient temperature limits
Operating temperature –20°C to +60°C
Dimensions
Height (above rail)
105mm
Width
89mm
Rail length required
36mm
Safety description
13V, 30mA (terminals 5–8)
Um = 250V ac
DIMENSIONS (mm)
13 14 15 16
9 10 11 12
36 Display
Pwr K1
S1 S2
89
5 67 8
1 23 4
110
EUROPE (EMEA)
Tel: +44 (0)1582 723633
Fax: +44 (0)1582 422283
AMERICAS
Tel: +1 603 926 0090
Fax: +1 603 926 1899
ASIA PACIFIC
Tel: +65 487 7887
Fax: +65 487 7997
E-mail: enquiry@mtl-inst.com Web site: www.mtl-inst.com
June 2004







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