Omega CN158 Manuale Utente

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CN158/CN159

2-7. Terminal arrangement table

3. Instruction for front panel

3-1. Drawing and the name of the parts

This is an example of the front panel of CN154/CN155.

Name of parts

: Measured value

(PV) display

: Set value (SV)

display

: Monitor LED
: Key switches

422A

485

RD–

RD+

SD–

–

SD+

COM+

COM

AL/HR

NO –

Power

CONTROL
OUTPUT

ALARM
OUTPUT

IN PUT

RTD

TC•mV

V•mA

–B

Heater break alarm (option) CT input terminal

Name of terminal and description

Terminal number

CN150 Series

Power terminal
100-260V AC

±10% 50/60Hz 12VA

Protective conductor terminal ( )

Input terminal
R. T. D. A, Thermocouple, Voltage, Current +
R. T. D. B, Thermocouple, Voltage, Current –
R. T. D. B

Output terminal
Contact: COM, SSR Drive voltage, Voltage,

Current +

Contact: NO, SSR Drive voltage, Voltage,

Current –

Contact: NC

Communication terminal
For RS-422A

For RS-485

SD+

SD–

–

RD+

RD–

Alarm output (option) terminal
COM

Contact rating 240V AC 1.5A
(resistive load)

Higher limit alarm

AL/HB Lower limit alarm or heater break alarm

Set value bias (option) input terminal

11-12

21-22

23-24

7
8

19
20

1
2
3
4
5

Note:

For Thermocouple, Voltage, and Current input,
measurement error results by connection between B and
B terminal.

3-2. Instruction for front panel

: Measured value (PV) display (green)

(1) Displays current measured value on the mode 0 basic

screen.

(2) Displays parameter type on each parameter screen.

: Set value (SV) display (orange)

(1) Displays set value on the mode 0 basic screen.
(2) Displays selected item and set value on each parameter

screen.

: Monitor LED

(1) OUT (output) monitor LED (green)

• For contact or SSR drive voltage output, a light turns

on for output ON and turns off for output OFF.

• For current or voltage output, the light intensity

changes proportionally to the output altitude.

(2) AT (auto tuning) monitor LED (green)

• On selection by , ON turns on AT waiting

( key), flashes on AT execution.

(3) AH alarm output monitor LED (red)

• Turns on for higher limit alarm output ON.

(4) AL/HB alarm output monitor LED (red)

• Turns on for lower alarm output ON or heater break

alarm ON.

(5) MAN (manual control output) monitor LED (green)

• Flashes when control output is in manual operation.

(6) STBY (control output stop) monitor LED (green)

• Turns on when the control output stop mode is

selected.

(7) COM (communication) monitor LED (green)

• Turns on when the remote communication mode is

selected.

: Key switches

(1)

(parameter) key

• Press on set screen to move to next set screen.
• Keep pressing three (3) seconds for function of move

key between basic screen of the mode 0 screen group
and direct call screen of mode 1 screen group.

(2)

(down) key

• Press on the set screen to flash the point of the least

digit and to reduce data or back increment data.

(3)

(up) key

• Press on the set screen to flash the point of the least

digit and to increase data of increment data.

(4)

(entry/registration) key

• Press on the set screen of the mode 0 screen group

and mode 1 screen group to fix the data changed by
the , keys and to extinguish flash of the point.

• The function selecting screen, of the mode 2 screen

group, registers data of the point flashing digit and
simultaneously shifts a data changeable digit (the
point flashing digit).

• The input scaling screen, of the mode 2 screen group,

registers data and shifts a parameter capable of being
set (in the row in which the rightmost point is
flashing).

• Press the key for five seconds and it functions to

change the basic screen of the mode 0 screen group to
the function selecting screen of the mode 2 screen
group and vice versa.

(5)

(manual) key

• Pressing this key on the control output screen changes

automatic control output to manual control output and
vice versa. During manual control output, the MAN
monitor LED flashes.

• The key does not function in the control output

stop mode.

ENT

MAN

ENT

MAN

OUT

MAN

STBY

COM

AH/HB

ENT

MAN

˚C