MODEL: 71VR1

71VR1 SPECIFICATIONS

ES-7403 Rev.17 Page 3/7

https://www.m-system.co.jp/

[Table 2 (RTD input)]

Overrange input (out of the usable range) is handled as burnout.

RTD

USABLE RANGE (˚

C) CONFORMANCE RANGE (˚C)

Pt 100 (JIS ’97, IEC)

Pt 100 (JIS ’89)

JPt 100 (JIS ’89)

Pt 50 (JIS ’81)

Ni 100

Cu 10 @25˚

C

Cu 50

-240 to +900

-240 to +900

-236 to +560

-236 to +700

-100 to +252

-212 to +312

-100 to +200

-200 to +850

-200 to +660

-200 to +510

-200 to +649

-80 to +250

-50 to +250

-50 to +150

OUTPUT SPECIFICATIONS

■ Network Interface

• Modbus-RTU: Retrievable analog data is Int data (signed

16 bits) only.

Transmission: Half-duplex, asynchronous, no procedure

Interface: Conforms to TIA/EIA-485-A

Max. transmission distance: 500 meters

Baud rate: 4800, 9600, 19200, 38400 bps

Data bit: 8 bits

Parity: Odd

Stop bit: 1 bit

Max. number of nodes: 15 (except the master)

Media: Shielded twisted-pair cable (CPEV-S 0.9 dia.)

• Infrared Interface

Interface: IrDA

Max. transmission distance: ≤ 0.2 m (with COP-IRDA and

71VRCFG)

■ Contact Output (Do1, Do2)

• Relay Output

Relay rating:

250 V AC @5 A (cos ø = 1)

30 V DC @5 A (resistive load)

Maximum switching voltage: 250 V AC or 30 V DC

Maximum switching power: 1250 VA or 150 W

Minimum load: 5 V DC @10 mA

INSTALLATION

Power consumption

• AC:

Approx. 7 VA at 100 V

Approx. 10 VA at 240 V

• DC: Approx. 6 W

Operating temperature: -5 to +55°C (23 to 131°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Atmosphere: No corrosive gas or heavy dust

Mounting: Panel flush mounting

Weight: 550 g (1.21 lb)

PERFORMANCE

Conversion accuracy

DC input: ±0.1% ±1 digit

Thermocouple input: ±1°C (±2°C for B, R, S, C, PR)

RTD input: ±1°C (±3°C for Cu 10)

CJC error: ±2°C max. at 25°C ±10°C

±4°C max. for R, S, PR

Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)

(±0.05 %/°C (±0.03 %/°F) for Cu 10) of max. span

Response time: ≤ 0.5 sec. for DC input with the sample

rate set to 100 msec.

≤ 2.5 sec. for T/C, RTD input with the sample

rate set to 500 msec.

Response time of alarm output, 0 – 100 % at 90 % setpoint.

Line voltage effect: ±0.1 % over voltage range

Calendar clock accuracy: Monthly deviation 2 minutes at

25°C

Battery backup: Approx. one month

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 2000 V AC @1 minute

(analog input each other to contact input to contact output

1 to contact output 2 to Modbus interface to power to FE)

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 (contact output)

Installation Category II (power)

Pollution degree 2

Analog input or contact input or contact output or network

interface to power to FE: Reinforced insulation (300 V)

Analog input each other to contact input to contact output

each other to network interface: Basic insulation (300 V)

RoHS Directive

Protection against access to the terminal blocks:

Finger protection (VDE 0660-514)