E5CN-R2TU datasheet(9/24 Pages) OMRON

9 / 24 page

Digital Temperature Controllers

E5CN/E5CN-U

■ Heater Burnout Alarms and SSR

Failure Detection Alarms

(E5CN Models with Heater Burnout and SSR Failure Detection

Alarms)

Note: 1. If the ON time of control output 1 is less than 190 ms, heater

burnout detection and the heater current will not be

measured.

2. If the OFF time of control output 1 is less than 190 ms, SSR

failure detection and the heater current will not be

measured.

■ Electrical Life Expectancy

Curve for Relays

(Reference Values)

Note: Do not connect a DC load to a Controller with a Long-life Relay

Output.

Maximum

heater current

50 A AC

Input current

indication

accuracy

±5% FS ±1 digit max.

Heater burnout

alarm setting

range

0.1 to 49.9 A (in units of 0.1 A)

0.0 A: Heater burnout/SSR failure alarm output

turned OFF.

50.0 A: Heater burnout/SSR failure alarm output

turned ON.

Minimum detection ON time: 190 ms (See note 1.)

SSR failure

detection

alarm setting

range

0.1 to 49.9 A (in units of 0.1 A)

0.0 A: Heater burnout/SSR failure alarm output

turned ON.

50.0 A: Heater burnout/SSR failure alarm output

turned OFF.

Minimum detection OFF time: 190 ms (See note 2.)

500

300

100

2345

Switching current (A)

E5CN

250 VAC, 30 VDC

(resistive load)

cos

φ = 1

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