MEX-P-B/B [MSYSTEM]
Final Control Elements;MODEL: MEX-P
Final Control Elements
[2] OPTIONS (multiple selections)
Brake Function
blank: Without
VALVE POSITIONER
(position-preset contact input; built-in SSR)
/B : With
Other Options
Functions & Features
blank: none
• Used for 24 - 200 V AC electric actuator position control
• Controls the electric actuator to a pre-configured target
position based on contact input
/Q: Option other than the above (specify the specification)
• Position feedback via potentiometer (100 Ω - 10 kΩ
unadjusted)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
• Direct motor driving with built-in SSR (with zero-cross
circuit)
/C02: Polyurethane coating
• Restart control timer built-in to prevent motor overheating
due to frequent on/off switching
/C03: Rubber coating
TERMINAL SCREW MATERIAL
/S01: Stainless steel
Typical Applications
• Position damper control using sequencers without analog
output
GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M3.5 screw terminals
72
Screw terminal: Chromated steel (standard) or stainless
steel
(2.83)
Housing material: Flame-resistant resin (black)
Full-closed position adjustment range: 0 - 25 % (front)
Full-open position adjustment range: 75 - 100 % (front)
Preset adjustment range: 0 to 100 % corresponding to Full-
closed to Full-open (front)
80
(3.15)
136
(5.35)
Deadband: 0.6 - 10.6 % (front)
mm (inch)
Timer adjustment: 1 – 30 sec. (front)
Isolation: Contact input to feedback potentiometer to
control output to power
MODEL: MEX-P-[1][2]
Lock protection timer: If the motor doesn't enter the
deadband for approx. 2 minutes, then power supply is cut;
reset is performed by power OFF or repeating full-open and
full-close actions
ORDERING INFORMATION
• Code number: MEX-P-[1][2]
Specify a code from below for each of [1] and [2].
(e.g. MEX-P-G/B/Q)
RUN indicator: Red LED blinks at 0.5 Hz during normal
operating
• Specify the specification for option code /Q
(e.g. /C01/S01)
Blinking at 2 Hz when lock protection timer is operating
INPUT SPECIFICATIONS
■ Setting Signals (Contact input)
Contact input capacity: 12 V DC @ 2 mA
Detection level: OFF: ≥ 100 kΩ (≤ 0.1 mA) / ≥ 10 V
ON ≤ 5 kΩ (≥ 1 mA) / ≤ 1 V
[1] POWER INPUT
AC Power
B: 100 V AC
C: 110 V AC
D: 115 V AC
■ Feedback potentiometer
F: 120 V AC
Minimum span: 50% of total resistance
Input range: Can be measured unadjusted from 0 - 100 Ω to
0 - 10 kΩ with potentiometer
G: 200 V AC
H: 220 V AC
J: 240 V AC
Excitation: 1 V DC
MEX-P SPECIFICATIONS
ES-4625 Rev.1 Page 1/3
http://www.m-system.co.jp/
MODEL: MEX-P
Input Assignments
INPUT 0
OFF
ON
INPUT 1
INPUT 2
OFF
OFF
OFF
OFF
ON
ACTION
Stop
OFF
OFF
ON
Preset Position 1
Preset Position 2
Preset Position 3
Preset Position 4
Full Closed Position
Full Open Position
Stop
OFF
ON
ON
OFF
ON
OFF
OFF
ON
ON
OFF
ON
ON
ON
ON
OUTPUT SPECIFICATIONS
■ Control Output: SSR (zero-crossing); 20 - 240 V AC 0.1 - 1
A
Operation: Terminal No. in ( ).
Deadband
0
q
Deviation
(11 - 2) Closing ON
(1 - 2) Opening ON
−
+
(Preset Position) - (Feedback Potentiometer)
INSTALLATION
Power input
•AC: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 3 VA
Operating temperature: -5 to +60°C (23 to 140°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 300 g (0.66 lb)
PERFORMANCE
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength:
1000 V AC @1 minute (Contact input to position feedback to
driver output to power)
2000 V AC @1 minute (Contact input to feedback
potentiometer to control output to power to ground)
EXTERNAL VIEW
Full-close position adj.
Full-open position adj.
Deadband
Timer
Preset 1 adj.
Preset 2 adj.
Preset 3 adj.
RUN LED
Preset 4 adj.
MEX-P SPECIFICATIONS
ES-4625 Rev.1 Page 2/3
http://www.m-system.co.jp/
MODEL: MEX-P
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)
CLAMP
(top & bottom)
7.8 (.31)
DIN RAIL
35mm wide
7
14
6
5
12
4
3
2–4.5 (.18) dia.
MTG HOLE
25 (.98) deep
8
9
15 10
1
11
2
14–M3.5
SCREW
50 (1.97)
72 (2.83)
107 (4.21)
136 (5.35)
60 (2.36)
72 (2.83)
[3.3 (.13)]
• When mounting, no extra space is needed between units.
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
Deadband Timer
Open
Close
1
SSR
Isolation
CONTACT INPUT 0
CONTACT INPUT 1
CONTACT INPUT 2
Capacitor
Motor
M
6
5
11
2
SSR
Close
Excitation Volt.
Generator
CPU
12
4
10
+
−
Feedback
Potentiometer
15
9
Voltage
Amplifier
1
2 3
Preset
4
Open
CLOSE OPEN
U
V
7
POWER
14
Base Socket
Note: Note that when limit switches inserted in motor wiring, the making/breaking may cause
stress on the SSRs.
EXPLANATIONS OF TERMS
• SSR (Solid State Relay)
Composed only of semiconductor parts, SSR is free from arc discharge or chattering which is typical with electromagnetic
relays. It features excellent characteristics against vibration, physical impact or other environmental conditions.
• Zero-Cross Function
SSR with zero-cross function turns on when AC power voltage is near zero, creating delay of switching when input is provided in
the middle of an wave cycle, thus limiting transient switching noise voltage and rush current.
Specifications are subject to change without notice.
MEX-P SPECIFICATIONS
ES-4625 Rev.1 Page 3/3
http://www.m-system.co.jp/
相关型号:
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