ES-9222 Rev.6
MDC
Plug-in Signal Conditioners M-UNIT
EXCITATION SUPPLY
Functions & Features
• Highly regulated DC power supply
• Output voltage fully adjustable over its entire span
• MDC-3 features separate regulated and unregulated outputs
• Powering up to three standard 4 – 20 mA loops simultaneously
• Shortcircuit protection
• Highdensity mounting
Typical Applications
• Strain gauge bridge excitation
• Voltage reference and general-purpose power supply needs
• Various 2-wire transmitters
MODEL: MDC–[1]–[2][3]
ORDERING INFORMATION
• Code number: MDC–[1]–[2][3]
Specify a code from below for each of [1] through [3].
(e.g. MDC-1-B/Q)
• Specify the specification for option code /Q
(e.g. /C01/S01/SET)
[1] SUPPLY OUTPUT
1
: 3 – 15 V DC adjustable
2
: 5 – 30 V DC adjustable
3
: 24 V DC regulated and 40 V DC unregulated
[2] POWER INPUT
AC Power
B
: 100 V AC
C
: 110 V AC
D
: 115 V AC
F
: 120 V AC
G
: 200 V AC
H
: 220 V AC
J
: 240 V AC
[3] OPTIONS
blank
: none
/Q
: With options (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-9222)
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
: M3.5 screw terminals
Screw terminal
: Chromated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Output to power
SUPPLY OUTPUT
•
Output voltage
:
MDC-1
: 3 – 15 V DC (adjustable on front)
(If not specified the default value is used 12V DC)
MDC-2
: 5 – 30 V DC (adjustable on front)
(If not specified the default value is used 24V DC)
MDC-3
: 24 V DC regulated and 40 V DC unregulated
Load current
:
MDC-1, -2
:
≤ 50 mA
MDC-3
: ≤ 65 mA (for the total of both outputs)
•
Shortcircuit Protection
MDC-1, -2
Current limited
: 65 mA max.
Protected time duration
: No limit
MDC-3
Current limited
: 85 mA max. at 24 V
Protected time duration
: No limit
INSTALLATION
Power input
•
AC
: Rating ±10 %, 50/60 ±2 Hz
Approx. 2 VA for MDC-1
Approx. 3.5 VA for MDC-2, -3
Operating temperature
: -5 to +60°C (23 to 140°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 290 g (0.64 lb)
PERFORMANCE in percentage of span
Temp. coefficient
:
MDC-1, -2
: ±0.03 %/°C (±0.02 %/°F)
MDC-3
: ±0.03 %/°C (±0.02%/°F) at 24 V
Ripple
:
MDC-1, -2
: 15 mVp-p max. at 50 mA output
MDC-3
: 15 mVp-p max. at 24 V/65 mA output
Load effect
:
MDC-1, -2
: -0.1 % or -5 mV, whichever is greater as absolute value with 0 – 50 mA variation
MDC-3
: -0.1 % max. with 0 – 65 mA variation at 24 V
Line voltage effect
:
MDC-1, -2
: -±0.5 % over voltage range
MDC-3
: ±0.5 % over voltage range at 24 V
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @ 1 minute (output to power to ground)
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM