Mini Universal Converter - Malema - #3

Input Signal

Signal current, Voltage

Input frequency

Duty ratio

Input pulse width

Open collector pulse / Voltage pulse, Switch change (Jumper change) 1mA/ L : 0 to 2VDC, H : 3 to 5VDC 1Hz to 1kHz

1:1

More than 50ms

Communication Specification

RS 485

Halfdulex, Baud rate 1200, 2400,4800, 9600 Parameter change Non parity, 8bit, 1stop bit

ID address 0 to 99 switch setting, Protocol, Format specification

Communication Basic format

Start code "*" + ID (00 to 99) + Command (R:read, W:write) + Parameter (Based on 2 byte definition) + Data (0 to 8 byte) + Sum check (2 byte) + Stop code

Indication

Data indication : LED (red) 5 digits, 7 segments + decimal point Alarm indication : LED (red) lamp

Specification of main function

Switch

Parameter setting 4 switches : MODE, SHIFT, UP, ENT

Function change, Side slide switch (Jumper on PCB in case ofMRR-940)

Selection of voltage (12VDC, 24VDC)

(MRR-940 : Without change 12 to 24V DC available)

Input signal type (Open collector, Voltage) Input range (50Hz, 1kHz)

Output

Analog Output (MRR - 940)

Output type and capacity

RS485, Power supply for sensor

Constant voltage output for MRR-930 and 940 : (V9mA Max.) Alarm output : High alarm, Low alarm (Selectable) (MRR-930 is insulation version)

Voltage output (0 to 5V DC) /Current output (4 to 20mA) Jumper change Open collector (Max. 100mA,30VDC)

Setting function

Scale range, Full scale, Decimal point position, Low cut, Damping, Indication change cycle, High alarm (0 to 99999), Low alarm (0 to99999) MRR-910 Measuring value <,>Setting value MRR-930 and 940 are Measuring value<, >Setting value Baud rate, ID address

Common Specification

Power supply

Ambient temperature and

humidity

Mass

Dimension

DC12V +10% or DC24V +10%, 2.5VA

DC12 to 24V (MRR-940) : Corresponding without changing

0 to 50oC, 30 to 95%RH, Without freezing

Approx. 50g

W48 x H24 x D80, PANEL CUT DIN48 x 24

MRR-9

X

0-

Z

Description

3

Alarm output insulation version Power supply for sensor voltage output 8V (9 mA Max.)

4

Analog output voltage Dc 0 - 5V or DC 4 - 20mA

Z

Others

Z

Special specification