E5CC-RX2ASM-802 datasheet(19/36 Pages) OMRON

19 / 36 page

E5EC-800

Communications Specifications

The baud rate, data bit length, stop bit length, and vertical parity can be in-

dividually set using the Communications Setting Level.

Current Transformer (Order Separately)

Ratings

Heater Burnout Alarms and SSR Failure

Alarms

*1. For heater burnout alarms, the heater current will be measured when the

control output is ON, and the output will turn ON if the heater current is

lower than the set value (i.e., heater burnout detection current value).

*2. For SSR failure alarms, the heater current will be measured when the

control output is OFF, and the output will turn ON if the heater current is

higher than the set value (i.e., SSR failure detection current value).

*3. The value is 30 ms for a control period of 0.1 s or 0.2 s.

*4. The value is 35 ms for a control period of 0.1 s or 0.2 s.

Transmission line

connection method

RS-485: Multipoint

Communications

RS-485 (two-wire, half duplex)

Synchronization

method

Start-stop synchronization

Protocol

CompoWay/F, or Modbus

Baud rate

19200, 38400, or 57600 bps

Transmission

code

ASCII

Data bit length*

7 or 8 bits

Stop bit length*

1 or 2 bits

Error detection

Vertical parity (none, even, odd)

Block check character (BCC) with

CompoWay/F or CRC-16 Modbus

Flow control

None

Interface

RS-485

Retry function

None

Communications

buffer

217 bytes

Communications

response wait time

0 to 99 ms

Default: 20 ms

Dielectric strength

1,000 VAC for 1 min

Vibration resistance

50 Hz, 98 m/s2

Weight

E54-CT1: Approx. 11.5 g,

E54-CT3: Approx. 50 g

Accessories

(E54-CT3 only)

Armatures (2)

Plugs (2)

CT input (for heater

current detection)

Models with detection for singlephase

heaters: One input

Models with detection for singlephase or

three-phase heaters: Two inputs

Maximum heater

current

50 A AC

Input current indica-

tion accuracy

±5% FS ±1 digit max.

Heater burnout

alarm setting range

0.1 to 49.9 A (in units of 0.1 A)

Minimum detection ON time: 100 ms *3

SSR failure alarm

setting range *2

0.1 to 49.9 A (in units of 0.1 A)

Minimum detection OFF time: 100 ms *4

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