Omega CN154, CN155, CN158, CN159 User Manual

- 3 -

(5) Near high voltage power lines or where inductive

interference can affect the operation of the product.
(6) Dew drops or direct exposure to sun light.
(7) Where the elevation is in excess of 2,000 m.

2-2.Mounting

(1) Machine the mounting hole by referring to panel cutout in

section 2-4.
(2) Applicable thickness of the mounting panel is from 1.0 to 3.5

mm.
(3) As this product provides mounting fixture, insert the product

from the front panel for installation.

2-3.How to remove the instrument out of the case

There is no need to remove your
CN150 series controllers out
of the case. Nevertheless, should the
need arise, for example, for
replacement, follow the steps
described below:
Insert a minus screwdriver of 6mm ~
9mm into the opening (where
packing is exposed) of the front case
and rotate the screwdriver while
pushing up the lock lever behind the
packing. Once the instrument comes
out by a few millimeters, you can
remove it by hand.

2-4.External dimensions and panel cutout

CN154/CN155 External dimensions CN154/CN155 Panel cutout

CN158/CN159 External dimensions CN158/CN159 Panel cutout

(unit : mm)

Note: The environmental conditions belong to the installation

category II of IEC 664 and the degree of pollution is 2.

When the instrument is removed/replaced in the case, make sure
the power is off. If it is done while the power is on, it may lead
to problems with the product and/or other problems.

ENT

MAN

PV

SV

˚C

OUT AT AH AH/HB MAN STBY COM

110

96 91.6

10010

130 min.

130 min.

92

+0.8
0

92

+0.8

0

110

10010

45

+0.6
0

(48 x N-3)

+1.0
0

92

+0.8

0

92

+0.8
0

130 min.

When N pieces are
installed laterally.
N= number

height 96

×

width 48

height 91.6

×

width 44.6

Dimension of current transformer (CT) for heater break
alarm

• For 0-30A (CTL-6-S)...................................For 0-50A (CTL-12-S36-8)

(unit : mm)

2-5.Wiring

(1) Wiring operation should be done according to the instruction

for the terminal arrangement in section 2-6. Exercise care
that no wrong connection is made.

(2) Crimp terminal should accommodate the M3.5 screw and

should have a width of less than 7mm.

(3) For thermocouple input, select the compensation wire

suitable to the thermocouple type.

(4) For R. T. D. input, leads should be less than 5Ω in resistance

and three leads should have the same resistance.

(5) Input signal line should be conducted safely apart from the

high voltage power line.

(6) Shield wiring (single point grounding) is effective for static

induction noise.

(7) Short interval twisted pair wire for input signal is effective

for electromagnetic induction noise.

(8) For power line, use wire or cable which is 1mm

2

or more in
sectional area and of which the performance is equal to or
higher than that of 600V vinyl insulated wire.

(9) Earth grounding should be performed with earth resistance

less than 100Ω and with wire thicker than 2mm

2

.

2-6.Terminal arrangement
SR73A

15

21

30
40

2.8

3

10.5

7.525

10

φ 5.8

2- φ 3.5

φ 12

φ 2.36

φ 12

940

15

7.5

2.3630

30

40

2-M3 depth 4

• Always disconnect this product from any power source
during wiring operation to prevent electrical shock.

• Be certain that the protective conductor terminal ( ) is
properly grounded. Otherwise, a serious electric shock may
result.

• Avoid touching the wired terminal and charged devices while
supplying power.

CAUTION

WARNING

422A 485

SG SG
SD+ +
SD– –
RD+
RD–

TC•mV

RTD

V•mA

IN PUT

1

2

3

4

5

6

7

+A

–B

8

9

B

10 20

21

SB

22

23

CT

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

L

11

12

13

14

15

16

17

18

19

N

COM+

NO –

NC

COM

AH

AL/HB

~

Power

CONTROL
OUTPUT

ALARM
OUTPUT

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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

10 20

23 24

19

18

17

16

15

14

13

12

2221

11

9

8

7

6

5

4

3

2

1

422A 485

RD–

RD+

SD– –

SD+ +

SG SG

L

N

COM+

NC

COM

AL/HR

AH

NO –

Power

CONTROL
OUTPUT

ALARM
OUTPUT

CT

SB

IN PUT

RTD

TC•mV

V•mA

+A

–B

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

SG SG
SD+ +
SD– –

RD+

RD–

Alarm output (option) terminal
COM Contact rating 240V AC 1.5A

(resistive load)
AH Higher limit alarm
AL/HB Lower limit alarm or heater break alarm

Set value bias (option) input terminal

11-12

13

21-22
23-24

7
8

10

18

19
20

1
2
3
4
5

14

15

16

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

PV

SV

OUT AT AH MAN STBY COMAH/HB

ENT

MAN

˚C

4

3

2

1