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MODEL: MXCB

MXCB SPECIFICATIONS

ES-1745 Rev.6   Page 1/6

Plug-in Signal Conditioners MX-UNIT

COMPUTER BACKUP STATION

(front configurable)
Functions & Features
• Manipulates/holds analog signals via contact input from a
computer
• Manual control available by the ‘Soft-Terminal’
indicator/controller (model: ST/STL).
• Restarts at the last stored value before power failure

Typical Applications
• Computer and DCS backup applications
• Used as manual controller
• Valve/damper control with ON-OFF signals

50

(1.97)

132

(5.20)

80

(3.15)

mm (inch)

MODEL: MXCB–[1]–[2][3]

ORDERING INFORMATION

• Code number: MXCB-[1]-[2][3]
Specify a code from below for each [1] through [3].
(e.g. MXCB-V1-M2/Q)
• Specify the specification for option code /Q
(e.g. /SET)

[1] OUTPUT

Current

Z1: Range 0 – 20 mA DC (Load resistance 600Ω max.)

Voltage

V1: Range -1 – +1 V DC (Load resistance 1000Ω min.)
V2: Range -10 – +10 V DC (Load resistance 10kΩ min.)

[2] POWER INPUT

AC Power

M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,
 47 – 66 Hz)

DC Power

R3: 12 – 24 V DC
(Operational voltage range 10.8 - 26.4 V, ripple 10 %p-p max.)

P: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)

[3] OPTIONS

blank: none
/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q

EX-FACTORY SETTING

/SET: Preset according to the Ordering Information Sheet
 (No. ESU-1745)

RELATED PRODUCTS

• Soft-Terminal (model: ST/STL)

GENERAL SPECIFICATIONS

Construction: Plug-in
Connection: M3.5 screw terminals
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
Programming: Via front keys
• Scaled range
• Response time
• Trace back mode
• Initial value, Hi, Lo
• etc.
Refer to the instruction manual for detailed information.
■ DISPLAY
LED: 8 mm (.31”) 7 segment, red
Number of display digits: 4 digits for DATA display; 2 digits
for ITEM display
Scaling: -9999 to 9999
PV indication: Output signal in engineering unit
Overrange indication: LEDs blinking
Power saving mode: Displays turn off if the keys are
untouched for a preset time period
LEDs: Red; the PL1 turns on with negative polarity

INPUT SPECIFICATIONS

■ Contact Input: TTL level (5V-CMOS level) or open
collector/dry contact (saturation voltage ≤ 1 V, sink current
0.5 mA)
• UP/DOWN/STOP signals (input from the computer)
UP/DOWN signal: Increases/decreases the analog output.
STOP signal: Switches AUTO/MAN modes.
• UP/DOWN signals (input from the Soft-Terminal):
Controls the analog output in MAN mode.

Summary of Contents for MXCB-1

Page 1: ... 150 V ripple 10 p p max 3 OPTIONS blank none Q With options specify the specification SPECIFICATIONS OF OPTION Q EX FACTORY SETTING SET Preset according to the Ordering Information Sheet No ESU 1745 RELATED PRODUCTS Soft Terminal model ST STL GENERAL SPECIFICATIONS Construction Plug in Connection M3 5 screw terminals Housing material Flame resistant resin black Isolation Input to output to power ...

Page 2: ...to 131 F Operating humidity 30 to 90 RH non condensing Mounting Surface or DIN rail Weight 450 g 0 99 lb PERFORMANCE in percentage of max span Display accuracy Accuracy 1 digit with 0 0 100 0 scaling Temp coefficient 0 015 C 0 008 F Accuracy 0 1 Min span required to ensure the accuracy 20 of the nominal output range Response time Approx 1 999 sec variable 0 100 Output memory at power OFF E 2 PROM ...

Page 3: ...UP DOWN Keys DATA Display DOWN LED UP LED STOP LED Polarity LED Refer to the instruction manual for detailed procedures CONNECTION EXAMPLES Used Independently AUTO OUTPUT AUTO OUTPUT OUTPUT OUTPUT COMPUTER FAILURE 9 10 11 5 6 2 1 3 4 POWER 7 8 E P 4 20mA DC MXCB FIELD CONTROL VALVE FLOWMETER COMPUTER PANEL FRONT BACK UP DOWN FEEDBACK SIGNAL STOP ...

Page 4: ...COMPUTER FAILURE 9 10 11 5 6 2 1 3 4 POWER 7 8 E P 4 20mA DC FEEDBACK SIGNAL ST STL MXCB FIELD CONTROL VALVE FLOWMETER COMPUTER PANEL FRONT BACK STOP UP DOWN AUTO OUTPUT AUTO OUTPUT EXTERNAL DIMENSIONS TERMINAL ASSIGNMENTS unit mm inch 80 3 15 50 1 97 103 4 06 132 5 20 20 79 When mounting no extra space is needed between units 5 6 7 8 2 1 11 10 3 3 13 80 3 15 40 1 57 50 1 97 7 8 31 CLAMP top botto...

Page 5: ...TOP command and output will be held at the value prior to the breakdown You can increase the output signal by closing across the terminals 9 11 and decrease it by closing 10 11 The output responds in the preset ramp rate MXCB Used in Combination with ST STL In normal operating mode the MXCB responds to UP DOWN signals from the computer in the preset ramp rate If the computer fails the STOP command...

Page 6: ...p with Multiplex Transmission E P MX COMPUTER Control Valve E P MX COMPUTER Control Valve Computer Backup Sta MXCB Computer Backup Sta MXCB Soft Terminal ST E P COMPUTER Control Valve Flowmeter MX Computer Backup Sta MXCB Soft Terminal STL Controller E P MX REMOTE I O Control Valve Computer Backup Sta MXCB E P MX Control Valve MXCB E P MX Control Valve COMPUTER Flowmeter Flowmeter Flowmeter SYSTEM...

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