E5CN-R2ML-500 datasheet(10/72 Pages) OMRON

10 / 72 page

E5CN/E5CN-U

Alarm Outputs

Each alarm can be independently set to one of the following 13 alarm types. The default is 2: Upper limit.

Auxiliary outputs are allocated for alarms. ON delays and OFF delays (0 to 999 s) can also be specified.

Note: For models with heater burnout, SSR failure, and heater overcurrent detection, alarm 1 will be an OR output of the alarm selected from the

following alarm types and the alarms for heater burnout, SSR failure, and heater overcurrent. To output only a heater burnout alarm, SSR

failure alarm, and heater overcurrent alarm for alarm 1, set the alarm type to 0 (i.e., no alarm function).

✽1. With set values 1, 4 and 5, the upper and lower limit values can

be set independently for each alarm type, and are expressed as

“L” and “H.”

✽2. Set value: 1, Upper- and lower-limit alarm

✽3. Set value: 4, Upper- and lower-limit range

✽4. Set value: 5, Upper- and lower-limit with standby sequence

For Upper- and Lower-Limit Alarm Described Above

• Case 1 and 2

Always OFF when the upper-limit and lower-limit hysteresis

overlaps.

• Case 3: Always OFF

✽5. Set value: 5, Upper- and lower-limit with standby sequence

Always OFF when the upper-limit and lower-limit hysteresis

overlaps.

Set

value

Alarm type

Alarm output operation

When X is

positive

When X is

negative

Alarm function

OFF

Output OFF

✽1

Upper- and lower-

limit

✽2

Upper limit

3Lower limit

✽1

Upper- and lower-

limit range

✽3

✽1

Upper- and lower-

limit with standby

sequence

✽4

Upper-limit with

standby sequence

Lower-limit with

standby sequence

Absolute-value

upper-limit

Absolute-value

lower-limit

Absolute-value

upper-limit with

standby sequence

Absolute-value

lower-limit with

standby sequence

LBA

(for alarm 1 only)

---

PV change rate

alarm

---

OFF

✽5

OFF

H < 0, L > 0

H < L

Case 1

H > 0, L < 0

H > L

Case 2

H < 0, L < 0

H < 0, L > 0

H ≥ L

H > 0, L < 0

H ≤ L

Case 3 (Always ON)

LH SP

Case 1

Case 2

HSP

Case 3 (Always OFF)

H < 0, L > 0

H < L

H > 0, L < 0

H > L

H < 0, L < 0

H < 0, L > 0

H ≥ L

H > 0, L < 0

H ≤ L

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