Omega Products CN76020 User Manual

1

⁄16 DIN Autotune Controller

KMTSS-125G-6
thermocouple sold
separately, $24,
see page A-81.

Panel punches

available, visit

omega.com/

panelpunches

Single Output

Model

$

Dual Output

$

494

CN76000 Series

Starts at

$

494

⻬ Dual 4-Digit Display
⻬ Autotune PID, PID, or

On/Off Control

⻬ Thermocouple Input

with 1° or 0.1° Resolution

⻬ RTD Input with

1° or 0.1° Resolution

⻬ Scalable Voltage and

Current Inputs

⻬ Displays in °F, °C, or

Engineering Units

⻬ Password Protection

Model

534

⻬ Front-Panel Programming
⻬ Relay, DC Pulse,

Optional Features

⻬ Analog Process or

⻬ Tracking/Non-Tracking

Additional Features

⻬ Loop Break Protection
⻬ Min/Max Indication
⻬ Auto/Manual Operation
⻬ Percent Output Indication
⻬ Single-Segment Ramp

CN76030, $494, shown larger than actual size.

AC SSR, Voltage, or
Current Output(s)

RS485 Digital Output

Alarms

and Soak

P-1

High

Performance

in a Small

Package!

Compact, 1⁄16 DIN Size, with NEMA 2, 3R,
and 12 Rated Front Panel.

CN76030, compact

1

⁄16 DIN size, $494,

shown actual size.

Status LEDs indicate
status of setpoint
and alarm outputs.

°F/°C engineering units.
Both indicators are off for
non-temperature inputs.

INDEX key advances
menu for programming.
Also used with
decrement key to
reset an alarm
programmed for
manual reset.

Increment key raises
value or turns “on”
menu item chosen.
Also used with ENTER
key to display secondary
and secure menus.

Convenient screw terminal connections.

Upper display
continuously indicates
process value or value
of menu item selected.

Lower display
continuously indicates
set value or menu item
selected.

ENTER key enters new
settings or commands
into memory. Also
used with the
increment key to
display other menus.

Decrement key lowers
value or turns “off”
menu item chosen.
Also used with INDEX
key to reset an alarm
programmed for
manual reset.

The CN76000 1⁄16 DIN controllers provide economical
control for a wide variety of processes, including
heating, cooling, and heat/cool. When used with the
proper transmitters, these devices can also control
pressure, flow, humidity, motion, or pH. The front
panel is NEMA 2, 3R, and 12 rated for waterproof
protection and is corrosion resistant.

The sophisticated design of the CN76000 incorporates
the latest microprocessor and surface mount
technology, compressing an unprecedented number of
standard features into a compact 1⁄16 DIN package. The
user can program control functions from the front
panel; input types are DIP switch selectable. Multiple
tuning modes allow the user to select from 3 standard
tuning presets, manual tuning, or autotuning.

P

Standard features include self-diagnosis with fault
indication. Non-volatile memory retains all process
parameters when power is off, without battery backup.
Settings for the optional alarm are configurable. The
alarm action may be defeated on startup, or until the
process value exceeds the alarm setpoint. The power
interrupt feature will reset on power-up if the alarm
condition no longer exists.

Other standard features include min/max storage and
display, auto/manual control, percent output indication,
ramp and soak operation, 4 user-selectable security
levels with password protection, and jumper-selected
5 Vdc pulse output to drive external solid state relays.
Optional features include RS485 communications,
process recorder output, and 4-stage setpoint.

P-2

OF F

AL

OF F

OF F

OF F

ENTER INDEX

A1

A2

MADE IN US A

PV

SV

48

(1.880)

48

(1.880)

125 (4.925)
1 14 (4.475)

12

(0.450)

*3

(0.125)

45

(1.760)

Panel cutout for all models is 45 x 45 mm (1.775 x 1.775").
Allow for 13 mm (0.5") clearance at rear of instrument.
* Present for all outputs other than relay.

12

11 61

2

V

mA

3

4

5 13 14 10

9

10

9

8

7 7

–

+

8

+

–

7

8

+

RTD

T/C

+

–

ALARM

(IF EQUIPPED)

1/4 A

3 AG 250 Vac

Line

85 to 265 Vac/Vdc

50 to 400 Hz

5 V max

* SOFTWARE CONFIGURABLE
AS SP1 OR SP2

FOR OUTPUT RATINGS SEE
SPECIFICATIONS.

SOLID STATE
RELAY OR
RELAY OUTPUT

5 Vdc
LOGIC

OUTPUT

OUTPUT B*

SOLID STATE

RELAY OR
RELAY OUTPUT

5 Vdc
LOGIC
OUTPUT

4 to 20 mA DC

or

0 to 10 Vdc

–

AUX

IN/OUT

OUTPUT A *

Specifications

Inputs: Thermocouple, RTD,

voltage or current; see input chart
for ranges
Resolution: See range chart;
voltage and current input models
are fully field scalable to
engineering units with up to
2 decimal places

Accuracy: ±0.25% span ±1 digit
Input Impedance: 3 MΩ min,

thermocouple; 200 µA, RTD current;
249 Ω, current; 5 kΩ, voltage

Sensor Break Protection:

De-energizes control outputs to
protect system

Loop Break Protection:

Error message is initiated on
shorted sensor or open heater
circuit; break time adjustable from
off to 99 min.
Loop Break Alarm: On alarm relay
equipped units, unit can be
programmed to alarm on loop break

Setpoint Range: Selectable
Displays: Dual 4-digit, 7-segment

LED, 7.6 mm (0.3") high; process
variable in red, setpoint in green
Control Action: Reverse (heat) or
direct (cool) action; selectable for
single or dual setpoint models
Control Modes: Time-proportioning
and proportional control modes;
selectable preset tune, autotune or
manual PID, P, PI or PD with reset
anti-windup
Proportional Band: 6 to 5000°F
or equivalent °C units; 6 to 9990 for
voltage/current inputs

Integral Time:

0.1 to 99.9 minutes, or off

Derivative Time:

0.01 to 99.99 minutes, or off

Cycle Time: 2 to 80 s
Approach Rate: Off to 99.99 min
On-Off Control: Adjustable on-off

differential 2° to full scale in
1° steps, 2 counts to full scale in
1-count steps (voltage/current inputs)
Ramp and Soak: One ramp time
and soak time each adjustable from
0 to 100 hours; end procedure can
be set for HOLD or OFF

Power:

85 to 265 Vdc or Vac, 50 to 400 Hz

Power Consumption: 5 VA max
Line Voltage Stability:

±0.05% over supply voltage range

Temperature Stability:

4 µV/°C (2.3 µV/°F) typical,
8 µV/°C (4.5 µV/°F) max

Common-Mode Rejection:

140 dB minimum at 60 Hz

Normal-Mode Rejection:

65 dB typical, 60 dB at 60 Hz

External Wiring

Dimensions:
mm (in)

Isolation: Relay and SSR outputs

are isolated; current, voltage and
logic outputs must not share
common grounds with the input

Memory:

Non-volatile; no batteries required
Mechanical Relay Output: SPST
(form A), 3 A @ 250 Vac, resistive;

1.5 A @ 250 Vac, inductive;
250 VA pilot duty rating,
2 A @ 125 Vac or 1 A @ 250 Vac,

1

⁄8 hp @ 125 Vac or 250 Vac

Solid State Relay Output: 3.5 A up
to 240 Vac at 25°C (77°F); derates
to 1.25 A @ 55°C (131°F)

Voltage Output:

Non-isolated; 0 to 10 Vdc, 500 Ω min
Current Output: Non-isolated;
0 to 20 mA, 600 Ω max; zero and
span adjustable

DC Pulse Output:

Non-isolated; 5 Vdc @ 25 mA
Operating Ambient: -10 to 55°C
(-4 to 131°F); 0 to 90% RH up to
40°C (104°F), non-condensing;
10 to 50% at 55°C (131°F),
non-condensing

P-3

Storage Ambient:

-40 to 80°C (-40 to 175°F)
Alarms: 2 alarms operate the same
relay; 3.0 A resistive 250 Vac;
form A contact (SPST); field
programmable for absolute
(non-tracking) or deviation
(tracking); can be set anywhere
within the scaling of the controller;
selectable inhibit and power
interrupt; automatic/manual reset

Process Signal Output (Optional):

Linearized, non-isolated
0 to 10 Vdc @ 5 mA; user-selectable
scale positioning of zero and full scale;
scaling span is 50 to 11,998 counts

RS485 Communications
(Optional): Unit with RS485

compatible communications
(no CE rating for RS485 option)
Dimensions: 48 H x 48 W x 125 mm D
(1.88 x 1.88 x 4.925");

115.3 mm (4.54") depth behind panel

Panel Cutout:

45 mm (1.775") square;

1

⁄16 DIN

Weight: 227 g (8 oz)
Front-Panel Ratings: NEMA 2,

3R and 12; dust and splash resistant

Input Types and Ranges

Input Type Range Resolution Range Resolution

Iron-constantan

Iron-constantan DIN

CHROMEGA®-ALOMEGA

CHROMEGA®-constantan

Copper-constantan

OMEGALLOY

®

-100 to 1600°F 1°F -73 to 87°C 1°C

-100 to 990°F 0.1°F -73 to 871°C 0.1°C

-100 to 1600°F 1°F -73 to 87°C 1°C

-100 to 990°F 0.1°F -73 to 871°C 0.1°C

-200 to 2500°F 1°F -129 to 137°C 1°C

®

-190 to 990°F 0.1°F -129 to 990°C 0.1°C

-100 to 1800°F 1°F -73 to 982°C 1°C

-100 to 990°F 0.1°F -73 to 990°C 0.1°C

-350 to 750°F 1°F -212 to 398°C 1°C

-190 to 750°F 0.1°F -212 to 398°C 0.1°C

-100 to 2372°F 1°F -73 to 1300°C 1°C

nicrosil-nisil -100 to 990°F 0.1°F -73 to 990°C 0.1°C
Pt/13%Rh-Pt 0 to 3200°F 1°F -17 to 1760°C 1°C
Pt/10%Rh-Pt 0 to 3200°F 1°F -17 to 1760°C 1°C

Pt/6%Rh-Pt/30%Rh 75 to 3308°F 1°F 24 to 1820°C 1°C
W/5%Re-W/26%Re 0 to 4208°F 1°F -17 to 2320°C 1°C

100 Ω Pt -328 to 1607°F 1°F -200 to 875°C 1°C

0 0385 curve -190 to 990°F 0.1°F -190 to 875°C 0.1°C

100 Ω Pt -328 to 1607°F 1°F -200 to 875°C 1°C

0 0392 curve -190 to 990°F 0.1°F -190 to 875°C 0.1°C

120 Ω Ni

-112 to 608°F 1°F -80 to 320°C 1°C

-112 to 608°F 0.1°F -80 to 320°C 0.1°C

Process Current 0 to 20 mA, 4 to 20 mA
Process Voltage 0 to 5 Vdc, 1 to 5 Vdc

† Voltage and current inputs are fully scalable for zero and span.
Maximum setting range is -1999 to 9999 counts.

MOST POPULAR MODELS HIGHLIGHTED!

Options

Ordering Add’l
Suffix Price Description

-PV $93

-485A** 115 RS485

Note: Only 1 option may be installed in a unit.

No CE rating for -485A option.

**

Scalable recorder;
output 0 to 10 Vdc

communications

To Order (Specify Model Number)

Single Output Models
Model No. Price Output
CN76(*)30 $494 Relay/DC Pulse
CN76(*)20 494 DC pulse/AC SSR
CN76(*)50 513 0 to 20 mA
CN76(*)60 513 0 to 10 Vdc

Comes complete with mounting bracket and operator's manual.

Specify 0 for standard unit, 1 for alarm unit; for alarms, add $35 to price.

*

†† These outputs are logic jumper selectable between relay and DC pulse, or between DC

pulse and AC SSR.
Ordering Example: CN76030-485A, CN76000 controller with single relay/DC pulse output

and optional RS485 communications, $494 + 115 = $609.

†

†

††

††

Recommended Reference Book:

Controller Tuning PID Without Math,

GE-2117, $23. Visit omega.com/bobi

for Additional Books.

Accessories

Model No. Price Description

1

DPP-4 $475
CNQUENCHARC

⁄

16 DIN panel punch

10 Noise suppression kit for mechanical relay models driving AC contactors

or solenoids

Dual Output Models
Model No. Price Output 1 Output 2
CN76(*)33 $534 Relay/DC pulse
CN76(*)22 534 DC pulse/AC SSR

††

Relay/DC pulse

††

DC pulse/AC SSR

CN76(*)53 554 0 to 20 mA Relay/pulse
CN76(*)63 554 0 to 10 Vdc Relay/DC pulse

Specify 0 for standard unit, 1 for alarm unit; for alarms, add $45 to price.

*

†† These outputs are logic jumper selectable between relay and DC pulse, or between DC

pulse and AC SSR.
Ordering Example: CN76133-485, CN76000 controller with dual relay/DC pulse outputs,

alarms and optional RS485 communications, $579 + 115 = $694.

††

††

††

††

P-4

P

One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | [e-mail]

EPG05

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