ES-7763 Rev.13

M7EASDY

Super-mini Signal Conditioners with
LCD Display M7E-UNIT Series

TWO-WIRE TRANSMITTER ALARM

(dual or quad alarm trip)
Functions & Features
• Provides relay outputs at preset DC input levels
• Quad or dual trip
• Powers a 4 – 20 mA DC current loop
• Shortcircuit protection
• Applicable to smart transmitters
• Linearization or square root extraction programmable
• Front LCD display indicating values in scaled engineering unit range is used to program the module
• Adjustable deadband (hysteresis)
• Software lock
• ON delay time selectable
• Hi/Lo trip and energized/de-energized coil independently selectable for each setpoint
• Enclosed relays
• Relays can be powered by 200 V AC and 100 V DC
• High-density mounting on DIN rail

MODEL: M7EASDY-[1]-[2][3]

ORDERING INFORMATION

• Code number: M7EASDY-[1]-[2][3]
Specify a code from below for each of [1] through [3].
  (e.g. M7EASDY-2-R/CE/Q)
• Specify the specification for option code /Q
  (e.g. /C01/S01/SET)

INPUT

Current
4 – 20 mA DC
(Selectable within 0 – 20 mA DC)

[1] OUTPUT

2: 4 points; N.O. or make contact
3: 4 points; N.C. or break contact
5: 2 points; SPDT or transfer contact

[2] POWER INPUT

AC Power
M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,
 47 – 66 Hz)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

[3] OPTIONS (multiple selections)

Standards & Approvals
blank: Without CE
/CE: CE marking
Other Options
blank: none
/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
TERMINAL SCREW MATERIAL
/S01: Stainless steel
EX-FACTORY SETTING
/SET: Preset according to the Ordering Information Sheet
(No. ESU-7763)

FACTORY DEFAULT SETTING

RELATED PRODUCTS

• PC configurator software (model: M7CFG)
Downloadable at our web site.
A dedicated cable is required to connect the module to the PC.  Please refer to the internet software download site or the users manual for the PC configurator for applicable cable types.

GENERAL SPECIFICATIONS

Construction: Plug-in
Connection: M3 screw terminals (torque 0.8 N·m)
Screw terminal: Chromated steel (standard) or stainless steel
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
Programming: Front buttons or PC software
Programmable parameters:
· Input range
· Input fine adjustments
· Moving average (None, 4, 8, 16 or 32 samples)
· Scale Range: -9999 to +9999
      Unit: User specific unit programmable.
      Decimal point position
· Linearization (linear, square root, user table: 128 points)
· Alarm output (L1...L4 independently)
      Setpoint (scaled value)
      Trip action (Hi or Lo)
      Deadband (hysteresis)  (scaled value)
      Relay coil (energized or de-energized)
· Power ON delay time (0 to 99 sec.)
· Alarm ON delay time (0 to 999 sec.)
· Latching or not
· LCD Contrast
      Back Light (On, Off, Off timer)

LCD DISPLAY

Display functions: Displays and sets measured range, engineering unit, alarm operation
Effective visual area: Approx. 15.6 × 18.9 mm (0.61” × 0.74”)
Number of pixels: 68 × 95 (horizontal × vertical)
Character color: Black
Backlight: LED (orange in normal status, red when an alarm is tripped.)
Backlight life: Approx. 50 000 hours
(Expected time for the LCD brightness to be reduced by half when the LCD is used continuously in 50 % brightness in 25°C)
LCD type: Transreflective FSTN
Display range: -9999 to +9999
Decimal point position: Selectable
Display rate: 150 msec.

SUPPLY OUTPUT

■ SUPPLY OUTPUT (across the terminals 1 – 2)
Output voltage: 24 – 28 V DC with no load
19 V DC minimum at 20 mA
Current rating: ≤ 22 mA DC
Permissible load resistance:
LR (Ω) ≤ (19 – Min. Operational Voltage)V ÷ 0.02 A
• Shortcircuit Protection
Current limited: 26 – 35 mA
Protected time duration: No limit

INPUT SPECIFICATIONS

■ Input Signal: Input resistor incorporated
Maximum range: 0 – 20 mA DC
Ex-factory setting: 4 – 20 mA DC
Minimum span: 2 mA
Offset: Lower range can be any specific value within the maximum range provided that
the minimum span is maintained.

OUTPUT SPECIFICATIONS

■ Quad Alarm
Relay rating: 100 V AC @ 1 A (cos ø = 1)
120 V AC @ 1 A (cos ø = 1)
240 V AC @ 0.5 A (cos ø = 1)
30 V DC @ 1 A (resistive load)
Maximum switching voltage: 250 V AC or 125 V DC
(Limited to the max. voltage 150 V AC or to the use for Measurement Category I in order to conform with EU Directive)
Maximum switching power: 120 VA or 30 W
Minimum load: 5 V DC @ 10 mA
Mechanical life: 5 × 107 cycles
■ DUAL ALARM
Relay rating: 100 V AC @ 4 A (cos ø = 1)
120 V AC @ 4 A (cos ø = 1)
240 V AC @ 2 A (cos ø = 1)
30 V DC @ 4 A (resistive load)
Maximum switching voltage: 250 V AC or 125 V DC
(Limited to the max. voltage 150 V AC or to the use for Measurement Category I in order to conform with EU Directive)
Maximum switching power: 480 VA or 150 W
Minimum load: 5 V DC @ 10 mA
Mechanical life: 5 × 107 cycles

LINEARIZATION

■ Linearization Types
Linear: No linearization
Square root: The input is square root extracted.
User table
Calibration points: Max. 128 points; the input % and linearized value in scaling are specified in pairs.
Selectable range: -7.5 to +107.5 % as input %; -9999 to +9999 as linearized values
■ Low-end Cutout: Low-end cutout (Low Cut) point selectable within the range of 0 to 100 %.
With the linear or user table output type,
the output signal is forcibly set to 0 % for the input lower than the low-cut point. With the square root extraction, the output signal is linear to the input when the latter is lower than the low-cut point.

INSTALLATION

Power consumption
•AC: Approx. 5 VA at 100 V
Approx. 7 VA at 200 V
Approx. 8.5 VA at 264 V
•DC: Approx. 3 W
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
With 4-point alarm type, leave extra 1-unit space on both sides of the unit if all 4 relay coils are to be energized in normal conditions.
Weight: 200 g (0.44 lb)

PERFORMANCE in percentage of FS input

Setpoint accuracy (trip point accuracy):
±(0.1 % of FS + 1 digit) (gain ≤1)
±(0.1 % × gain of FS + 1 digit) (gain >1)
Display accuracy: ±(0.1 % of FS + 1 digit)
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: 2000 V AC @1 minute  (input to output to power to ground)

STANDARDS & APPROVALS

EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
Low Voltage Directive 
  EN 61010-1
  Measurement Category II (output)
  Installation Category II (power)
  Pollution Degree 2
  Input or output to power: Reinforced insulation (300 V)
  Input to output: Basic insulation (300 V)
  (When 150 V AC max. load voltage or measurement
  category I, applicable as reinforced insulation)
RoHS Directive

EXTERNAL VIEW

Refer to the instruction manual for the setting procedure.

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM