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E5AN-HAA2HBM-500

Advanced Digital Temperature Controller

OMRON Corporation 

E5AN-H/E5EN-H

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).

Set value

Alarm type

Alarm output operation

When alarm value When alarm value

X is positive

X is negative

Description of function

0

Alarm function OFF

Output OFF

No alarm

1

Upper- and lower-limit *1

ON

OFF

LH

*2

SP

Set the deviation in the set point by setting the alarm

upper limit (H) and alarm lower limit (L).

2

Upper-limit

ON

OFF

X

SP

ON

X

OFF

SP

Set the upward deviation in the set point by setting

the alarm value (X).

3

Lower-limit

ON

X

OFF

SP

ON

OFF

X

SP

Set the downward deviation in the set point by setting

the alarm value (X).

4

Upper- and lower-limit range *1

ON

OFF

LH

*3

SP

Set the deviation in the set point by setting the alarm

upper limit (H) and alarm lower limit (L).

5

Upper- and lower-limit with

standby sequence *1

ON

LH

OFF

SP

*4

*5

A standby sequence is added to the upper- and

lower-limit alarm (1). *7

6

Upper-limit with standby sequence

ON

OFF

X

SP

ON

X

OFF

SP

A standby sequence is added to the upper-limit alarm

(2). *7

7

Lower-limit with standby sequence

ON

OFF

X

SP

ON

OFF

X

SP

A standby sequence is added to the lower-limit alarm

(3). *7

8

Absolute-value upper-limit

ON

OFF

X

0

ON

X

The alarm will turn ON if the process value is larger

OFF

0

than the alarm value (X) regardless of the set point.

9

Absolute-value lower-limit

ON

OFF

X

0

ON

X

The alarm will turn ON if the process value is smaller

OFF

0

than the alarm value (X) regardless of the set point.

10

Absolute-value upper-limit with

standby sequence

ON

OFF

X

0

ON

X

A standby sequence is added to the absolute-value

OFF

0

upper-limit alarm (8). *7

11

Absolute-value lower-limit with

standby sequence

ON

OFF

X

0

ON

X

A standby sequence is added to the absolute-value

OFF

0

lower-limit alarm (9). *7

12

LBA (alarm 1 type only)

---

*8

13

PV change rate alarm

---

*9

14

RSP absolute value upper limit *6

ON

OFF

X

0

ON

X

OFF

The alarm turns ON when the remote SP (RSP) is

larger than the alarm value (X). This alarm functions

0

in both Local SP and Remote SP Modes.

15

RSP absolute value lower limit *6

ON

OFF

X

0

ON

X

OFF

The alarm turns ON when the remote SP (RSP) is

smaller than the alarm value (X). This alarm

0

functions in both Local SP and Remote SP Modes.

*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

Case 1

Case 2

Case 3 (Always ON)

L H SP

H < 0, L > 0

⏐H⏐ < ⏐L⏐

SP L H

H > 0, L < 0

⏐H⏐ > ⏐L⏐

H SP L

H L SP

SP H L

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

H < 0, L < 0

H < 0, L > 0

⏐H⏐ ≥ ⏐L⏐

H > 0, L < 0

⏐H⏐ ≤ ⏐L⏐

Case 1

Case 2

Case 3 (Always ON)

H < 0, L < 0

L H SP

SP L H

H SP L

H < 0, L > 0

⏐H⏐ < ⏐L⏐

H > 0, L < 0

⏐H⏐ > ⏐L⏐

H L SP

H < 0, L > 0

⏐H⏐ ≥ ⏐L⏐

H > 0, L < 0

SP H L

⏐H⏐ ≤ ⏐L⏐

*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.

*6. Displayed when there is a remote SP input.

*7. Refer to the E5CN/E5AN/E5EN/E5GN Digital Temperature

Controllers User's Manual Basic Type (Cat. No. H156) for

information on the operation of the standby sequence.

*8. Refer to the E5CN/E5AN/E5EN/E5GN Digital Temperature

Controllers User's Manual Basic Type (Cat. No. H156) for

information on the loop burnout alarm (LBA).

*9. Refer to the E5CN/E5AN/E5EN/E5GN Digital Temperature

Controllers User's Manual Basic Type (Cat. No. H156) for

information on the PV change rate alarm.

7

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