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參數(shù)資料
| 型號(hào)： | MTL5521 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | FREQUENCY TO CURRENT CONVERTER AND TRIP AMPLIFIER |
| 中文描述： | 頻率電流轉(zhuǎn)換器和放大器之旅 |
| 文件頁數(shù)： | 1/1頁 |
| 文件大?。?/td> | 28K |
| 代理商： | MTL5521 |
EUROPE (EMEA)
AMERICAS
ASIA PACIFIC
E-mail: enquiry@mtl-inst.com Web site: w w w.mtl-inst.com
Tel: +44 (0)1582 723633
Tel: +1 603 926 0090
Tel: +65 487 7887
Fax: +44 (0)1582 422283
Fax: +1 603 926 1899
Fax: +65 487 7997
June 2004
Terminal
Function
5
6
7
8
9
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
10
11
12
13
15
16
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. W hen 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. W hen 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 sw itch
Zone 0, IIC, T6 hazardous area
Div. 1, Group A hazardous location
Location of prox imity 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
20
μ
s
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
LED indicators
Green
Power
Yellow K1
Set point relay status
Yellow (Red)
Pulse indication (fault)
Hazardous area
Safe area
Pow er supply
230V ac nominal, 184–264V ac, 48–62Hz
115V ac nominal, 98–126V ac, 48–62Hz
24V dc nominal, 19–29V dc, <10% ripple
Pow er 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 2x2.5mm
2
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)
U
m
= 250V ac
DIMENSIONS (mm)
(MTL5521-11-230)
(MTL5521-11-115)
(MTL5521-11-24)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Start up
delay
Vs+
Vs–
Load
NAMUR
Sensor
V or
I
+
–
**
** see 'Power supply' for options
13
14
Display
15
16
9
10
11
12
5
6
7
8
1
2
3
4
36
89
110
S1
Pwr K1
S2
相關(guān)PDF資料 |
PDF描述 |
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| MTL6420U.001.A | SINGLE CHANNEL OPTOCOUPLER |
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| MTL6400U.004.S | SINGLE CHANNEL OPTOCOUPLER |
| MTL6400U.001.A | 240 x 64 pixel format, CFL, LED, or EL Backlight available |
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