B7AH-R6D58 datasheet(35/121 Pages) OMRON

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B7A

Specifications

Characteristics

General

Normal speed

High speed

Communications method

Unidirectional, time-division multiplex

Transmission distance (see note 2)

500 m max.

100 m max. (see note 3)

I/O delay time

Typical: 19.2 ms; 31 ms max.

Typical: 3 ms; 5 ms max.

Minimum input time (see note 4)

16 ms (see note 5)

2.4 ms

Operating voltage range

12 to 24 VDC (10.8 to 26.4 VDC) (see note 2)

Insulation resistance

100 M

Ω min. (500 V) between each terminal and external parts

Dielectric strength

1,000 VAC, 50/60 Hz for 1 min between each terminal and external parts

Noise immunity (see note 6)

Noise level: 1.5 kV; pulse width: 100 ns to 1

µs (on transmission line due to coupling)

Vibration resistance

10 to 55 Hz, 1.5-mm double amplitude

Shock resistance

300 m/s2

Ambient temperature

Operating: –10 to 55

°C (with no icing)

Storage:

–25 to 65

°C (with no icing)

Ambient humidity

Operating: 35% to 85% (with no condensation)

Note:

1. If there is a possibility of noise interference from the power supply, input, and/or output lines, add appropriate noise protection cir-

cuits. Refer to

Noise Protection Circuits on page 101 for details.

2. The transmission distance values stated in this table are possible if the Input or Output Link Terminal is connected to an independent

power supply. If a single power supply is connected to the Input or Output Link Terminal, the supply voltage must be 24 VDC

±10%,

in which case the transmission distance of a normal-speed model is 100 m maximum and that of a high-speed model is 50 m maxi-

mum. Refer to

Power Supply on page 36 for details.

3. A shielded transmission cable or a VCTF cable with a thickness of 0.75 mm2 minimum must be used for signal transmission. If the

VCTF cable is used, however, the transmission distance will be 10 m maximum regardless of whether or not independent power

supplies for the Input and the Output Link Terminals are used.

4. The minimum input time is required for the B7A to read an input signal.

5. Set the timer of the PLC to 0.02 s minimum if a normal-speed model is connected to the PLC.

6. For high-speed models, these values are possible without grounding the shielded line.

Input Models

Item

16-point

32-point

B7A-T6E3/-T6E8

B7A-T3E3/-T3E8

Compatible inputs

PLC (NPN output), switches, three-wire NPN sensors

Input logic

Active low

Current consumption

(see note)

60 mA max. with all input terminals ON

100 mA max. with all input terminals ON

Input voltage range

0 VDC to supply voltage

Input current range

–1.5 to –0.6 mA/point (current flowing from input terminals)

ON/OFF threshold

No-contact input: ON voltage:

1.6 V max.

OFF voltage: 5.5 V min.

Contact input:

ON discrimination resistance:

1 k

Ω max.

OFF discrimination resistance:

9 k

Ω min.

Mounting strength

No damage when 49-N pull is applied for 1 min each in all directions

Terminal strength

No damage when 49-N pull is applied for 1 min each in all directions

Tightening torque

0.78 to 1.18 N

S m

Weight

Approx. 46 g

Approx. 71 g

Note:

Consumption when all 16/32 points are ON. Excludes external sensor current for Input Terminals.

B7AH-R6D58 数据表(PDF) 35 Page - Omron Electronics LLC

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