18AS2-D2-R [MSYSTEM]
Rack-mounted DCS Signal Conditioners 18-RACK;型号: | 18AS2-D2-R |
厂家: | M-SYSTEM |
描述: | Rack-mounted DCS Signal Conditioners 18-RACK DCS 分布式控制系统 |
文件: | 总4页 (文件大小:125K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MODEL: 18AS2
(connector output not available)
Rack-mounted DCS Signal Conditioners 18-RACK
6: Hi/Lo; N.C., OFF in power failure
(connector output not available)
0: Specify
DC ALARM
Functions & Features
• Providing relay contact closures at preset DC input levels
• Single or dual (Hi/Lo) trip
POWER INPUT
DC Power
• Frontaccessed screwdriver setpoint adjustments
• Enclosed relays
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
Typical Applications
• Annunciator
GENERAL SPECIFICATIONS
Construction: Rack-mounted; terminal access via screw
terminals on the front and connector on the rear; terminal
cover provided
• Various alarm applications
Connection
Input: M3.5 screw terminals (torque 0.8 N·m)
Alarm output: M3.5 screw terminals (torque 0.8 N·m) and
connector
Power input: Supplied from connector
Screw terminal: Nickel-plated steel
Isolation: Input to output to power
Relay: Enclosed
MODEL: 18AS2–[1][2]–R
Setpoint adjustments: Multi-turn screwdriver adjustments
(front); -5 – +105 % independently
Hysteresis (deadband): Approx. 1 %
Front LEDs: Red LED turns on when the coil is energized.
ORDERING INFORMATION
• Code number: 18AS2-[1][2]-R
Specify a code from below for each of [1] and [2].
(e.g. 18AS2-62-R)
• Special input range (For code 0)
INPUT SPECIFICATIONS
■ DC Current: Input resistor incorporated
■ DC Voltage: 0 – 300 V DC
Minimum span: 1 V
Use Ordering Information Sheet (No. ESU-1033) to specify
alarm output code 0 specifications.
Offset: Max. 1.5 times span
Input resistance: ≥ 1 MΩ
[1] INPUT
Current
A: 4 – 20 mA DC (Input resistance 250 Ω)
D: 0 – 20 mA DC (Input resistance 50 Ω)
G: 0 – 1 mA DC (Input resistance 1000 Ω)
H: 10 – 50 mA DC (Input resistance 100 Ω)
Voltage
3: 0 – 1 V DC (Input resistance 1 MΩ min.)
4: 0 – 10 V DC (Input resistance 1 MΩ min.)
5: 0 – 5 V DC (Input resistance 1 MΩ min.)
6: 1 – 5 V DC (Input resistance 1 MΩ min.)
0: Specify voltage (See INPUT SPECIFICATIONS)
[2] ALARM OUTPUT
1: Hi (coil energized at alarm)
2: Hi (coil de-energized at alarm)
3: Lo (coil energized at alarm)
4: Lo (coil de-energized at alarm)
5: Hi/Lo; N.O., OFF in power failure
18AS2 SPECIFICATIONS
ES-1769 Rev.3 Page 1/4
http://www.m-system.co.jp/
MODEL: 18AS2
OUTPUT SPECIFICATIONS
Output: Enclosed SPST and SPDT relays
Rating:
30 V DC @ 1 A (resistive load)
0.2 A for the connector output
Maximum switching voltage: 30 V DC
Max. switching power: 30 W (6 W for the connector output)
Minimum load: 5 V DC @ 10m A
Mechanical life: 5 × 10 cycles
7
• Single Alarm
Front terminals
5 – 6
ON
5 – 7
OFF
ON
Energized
De-energized (or power OFF)
OFF
Rear connector
ALARM
OUTPUT
CODE
POWER ON
POWER OFF
IN < SET
OFF
IN > SET
ON
1
2
3
4
OFF
ON
OFF
ON
ON
OFF
OFF
ON
ON
OFF
• Dual Alarm (front terminals)
POWER ON
ALARM
POWER OFF
5 – 6 7 – 8
IN < SET
IN > SET
OUTPUT
CODE
5 – 6 7 – 8 5 – 6 7 – 8
5
6
ON
OFF
ON
OFF
ON
ON
OFF OFF
OFF OFF
OFF
OFF
Shades indicates that the relay is energized.
INSTALLATION
Current consumption: Approx. 80 mA
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Standard Rack 18BXx or 18KBXx
Weight: 150 g (0.33 lb)
PERFORMANCE in percentage of span
Trip point repeatability: ±0.1 %
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Response time: ≤ 0.5 sec. (0 – 100 % at 90 % setpoint)
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @ 1 minute
(input to output or power)
500 V AC @ 1 minute (output to power)
1500 V AC @ 1 minute (input or output or power to ground)
18AS2 SPECIFICATIONS
ES-1769 Rev.3 Page 2/4
http://www.m-system.co.jp/
MODEL: 18AS2
EXTERNAL VIEW
■ SINGLE ALARM
■ DUAL ALARM
7
8
7
8
Indicator
Hi Alarm Indicator
5
1
6
5
1
6
2
High Setpoint Adj.
Low Setpoint Adj.
Lo Alarm Indicator
Setpoint Adj.
2
3
4
3
4
EXTERNAL DIMENSIONS unit: mm (inch)
2–M3
SCREW
8–M3.5
7 (.28)
SCREW
7 (.28)
24 (.94)
32 (1.26)
78 (3.07)
TERMINAL ASSIGNMENTS
7
8
5
6
1
2
3
4
18AS2 SPECIFICATIONS
ES-1769 Rev.3 Page 3/4
http://www.m-system.co.jp/
MODEL: 18AS2
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
■ SINGLE ALARM
■ Relay Protection
• AC Powered
SETPOINT ADJ.
Inductive
Load (Coil)
5
6
7
8
COM
Low Drift
Amplifier
+
–
1
2
3
4
Ry
Comparator
Varistor or Spark
Quenching Circuit
**
*
H
L
OUTPUT
INPUT
LOAD
U
• DC Powered
Inductive
Load (Coil)
**
HI / LO
Output
Diode, Varistor or
CR Circuit
LOAD
POWER
■ DUAL ALARM
SETPOINT ADJ.
Comparator
**
**
5
6
7
8
Low Drift
Amplifier
LO OUTPUT
HI OUTPUT
+
–
1
2
3
4
Ry
Ry
*
INPUT
Comparator
SETPOINT ADJ.
POWER
* Input shunt resistor incorporated for current input.
**Relay status is determined by output codes.
Specifications are subject to change without notice.
18AS2 SPECIFICATIONS
ES-1769 Rev.3 Page 4/4
http://www.m-system.co.jp/
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