Omron G3PX EUN Series User manual

R
AC Power Controller G3PX
Built-in Phase-control System Allows
Precise Temperature and Load Control
HGradually applies power to the load
from 0.5 to 10 seconds
HLED indicators display power level
HControls single-phase loads from 100 to
230 VAC
HControl (coil) voltage: 5 to 24 VDC
HFront panel settings for duty cycle and
soft-start time
HModels available with current
transformer for use with heaters
Ordering Information
Important note for ordering:
Choose normally stocked products whenever possible to ensure availability that matches your schedule. Normally stocked items are
shown as shaded in the Ordering Information tables. Non-stocked items are available but may be subject to longer lead times. For the
most up-to-date information on stock status, contact your Omron representative.
JSINGLE PHASE MODELS
Omron’s Power Controllers feature accessible settings and displays to simplify setup and monitoring. The power controller’s soft-start
function gradually applies power to maximize the life of the load. All have plug-in replaceable power switching cartridges for fast servicing
so that wiring and settings are not disturbed.
Max. load current Max. inrush current (60 Hz, 1 cycle) Operating voltage Load voltage Part number
20 amps 220 amps 5-24 VDC 100-230 VAC G3PX-220EUN AC100/230
40 amps 440 amps G3PX-240EUN
60 amps 440 amps G3PX-260EUN
JSINGLE PHASE MODELS WITH CURRENT TRANSFORMER
Omron’s “EC” series Power Controllers include a current transformer ready to use in heater burnout alarm applications. Additional indica-
tors and a relay alarm output supplement the features above.
DSet current limit with convenient front panel adjuster
DShort-circuit indicator
DHeater burnout indicator
DRelay (SPDT) output for alarm is rated 8 amps, 250 VAC
DManual reset switch
DCurrent transformer with 1-meter leads
Max. load current Max. inrush current (60 Hz, 1 cycle) Operating voltage Load voltage Part number
20 amps 220 amps 5-24 VDC 100-230 VAC G3PX-220EC-CT10
40 amps 440 amps G3PX-240EC-CT10
60 amps 440 amps G3PX-260EC-CT10

G3PX
G3PX
2
JREPLACEMENT PARTS
Description Specifications Applicable models Part number
Power device cartridge 20 A carry current G3PX-220 G32X-A20
g
40 A carry current G3PX-240 G32X-A40
60 A carry current G3PX-260 G32X-A60
Current transformer 1 m cable G3PX-2!!EC G32X-CT10C
0.3 m cable G3PX-2!!EC G32X-CT03C
Specifications
JRATINGS
Control
Series G3PX-!!!EUN G3PX-!!!EC
Rated voltage 100/110, 200/230 VAC; single phase 100/110, 200/220 VAC; single phase
Frequency 50/60 Hz (See Note 1)
Input signal for control External main setting 2kΩ(type B, 2 W min.)
p
g
Current input 4 to 20 mA or 1 to 5 V linear input; input impedance 250Ω(See Note 3)
Voltage ON/OFF input 5 to 24 VDC; input impedance: approx. 20 kΩ
External duty setting 3kΩ(type B)
Relay output for alarm -- -- -- SPDT, 8 A at 250 VAC/30 VDC
Note: 1. 50/60 Hz, no selector required (EUN series). Terminals 18 and 19 of “EC” series models must be open when the supply frequency is
50 Hz. These terminals must be short-circuited when the supply frequency is 60 Hz.
2. Use the 2-kΩrated G32X-V2K variable resistor for external main setting on EUN and EC series.
3. Either 4 to 20 mA or 1 to 5 VDC can be input to the 4 to 20 mA current input terminal.
Output
Series Applicable load
Load voltage range Load current (See Note) Inrush current (60 Hz, 1 cycle) Phase
G3PX-220E!! 100/110 or 200/230
V
A
C
0
/
6
0
H
1to20A 220 A Single
G3PX-240E!!
/
/
VAC, 50/60 Hz 1to40A 440 A
g
G3PX-260E!! 1to60A 440 A
Note: The G3PX-2!!EC requires 20% minimum of the rated current to detect a short mode failure. The EC-series models detect an open
mode failure if the load current has dropped to 80% of the rated value. A short mode failure will be detected if the current has risen to
20% of the rated value.

G3PX G3PX
3
JCHARACTERISTICS
Series G3PX-!!!EUN G3PX-!!!EC
Operating voltage range ±10%
Operating frequency range ±1Hz
Output voltage adjustable range 0% to 95%
Internal duty setting range 0% to 100%
External duty setting range 0% to 100%
Start--uptime(SeeNote) Approx 0.5 to 10 s with a 100% duty setting
Base-up range 0% to 90% -- -- --
Minimum load current for ON error detection -- -- -- 20% max of rated current
Current limit range -- -- -- 0 to 100%
Excess current detection -- -- -- G3PX-220EC: Peak current of 110 A within 1 cycle
G3PX-240EC: Peak current of 220 A within 1 cycle
G3PX-260EC: Peak current of 330 A within 1 cycle
Constant current -- -- -- ±3% max. with 10-time increment of load value
±3% max. with ±10% change of voltage
Abnormality detection time -- -- -- 1smax.
Voltage drop with output ON 1.6 V max. (RMS)
Leakage current 10 mA max. at 100/110 VAC;
20 mA max. at 200/230 VAC
10 mA max. at 100/110 VAC;
20 mA max. at 200/220 VAC
Insulation resistance 100 MΩmin. at 500 VDC
Dielectric strength 2000 VAC, 50/60 Hz for 1 minute
Vibration resistance 10 to 55 Hz, 10 G
Shock resistance 300 m/s2
Ambient temperature Operating: --10°Cto55°C(14°F to 131°F)with no icing
Storage: --25°Cto65°C(--13°F to 149°F) with no icing
Ambient humidity Operating: 45% to 85% RH
Weight G3PX-220EUN: approx 1.1 kg
G3PX-240EUN: approx. 1.4 kg
G3PX-260EUN: approx. 1.7 kg
G3PX-220EC: approx 1.1 kg
G3PX-240EC: approx. 1.4 kg
G3PX-260EC: approx. 1.7 kg
Note: The start-up time is factory-set to 0.5 s on the EC series.
Nomenclature
JSINGLE-FUNCTION MODEL
(EUN-SERIES MODEL)
G3PX-2j0EUN
POWER indicator
BASE-UP adjuster
DUTY adjuster
(for internal slope
setting)
TIME adjuster
(for Extended
soft-start time)
Power
Device
Cartridge
Level indicator
JCONSTANT-CURRENT MODEL
(EC-SERIES MODEL)
G3PX-2j0EC-CTjj
POWER indicator
CT Unit
CURRENT limit adjuster
(for limiting current)
TIME adjuster (for
extended soft-start
time)
Level indicator
RESET
switch
Power
Device
Cartridge
SHORT indicator
(for short-mode
failure detection)
OPEN indicator (for single
heater burnout detection)
DUTY adjuster
(for internal slope
setting)

G3PX
G3PX
4
Operation
JERROR DETECTING FUNCTION
Wiring
Single-phase Models
All G3PX-jjjEC models incorporate terminals 11 and 12 for
the current transformer (CT Unit), 13 and 14 for the external reset
switch, and 16 and 17 for relay output as well as power/input
terminals 1 through 10.
Note: 1. Connect either the black or white lead wire of the CT
Unit to terminal 11 and the other lead wire to terminal
12. The G3PX will malfunction if you do not connect
theCTUnittotheG3PX.
2. The rated current and voltage of G3PX models when
reset are as follows:
EC-series models: 1 mA at 12 VDC
3. For more than one heater.
11
12
13
14
15
16
17
Load 1
Load 2
G3PX-2j0EC
Load
CT Unit
External reset
switch
CT Unit
G32X-CTjj
Relay output
(SPDT)
(See Note 1)
(See Note 2)
(See Note 3)
Load
Output
Single-phase Models
The following illustrations show the condition of the G3PX LED indi-
cators when the G3PX detects heater burnout, a short-mode failure
(ON failure of components), or overcurrent (EC-series con-
stant-current models only). The indicator and relay output signals
are reset with the internal or external reset switch provided that the
error condition has been remedied.
1. When EC-series models detect single or multiple heater
burnout, the OPEN indicator is lit and the SPDT relay output is
ON.
Note: When the G3PX detects heater burnout, the Level indicator
will be OFF regardless of the G3PX input condition. The red
OPEN indicator will be lit.
2. When EC-series models detect a short-mode failure, the
SHORT indicator is lit and the SPDT relay output is ON.
With continuous load current.
With load current shut off.
Note: When the G3PX detects a short-mode failure, all LEDs of
the Level indicator and red SHORT indicator are lit. When
you use a breaker to disconnect the load with the relay out-
put, all LEDs of the Level indicator will be OFF regardless of
the input to the G3PX.
3. When EC-series models detect an overcurrent, the Level
indicator will flash and the SPDT relay output is ON. The input
signal will be shut off.
Note: When resetting, leave power supply terminals 10 to 9 or 8
ON.

G3PX G3PX
5
JWIRING
Main Circuit
Single-phase Models
The following illustrations show connection examples:
Note: Use a single power supply for the G3PX and the load.
Load 1
Load 2
G3PX
Load
1
2
3
4
5
6
7
8
9
10
200/230 VAC
100/110 VAC
Setting Circuit
Analog Control
Single-phase Models
1. A Temperature Controller with 4 to 20 mA output is used to control the G3PX.
1
2
3
4
5
6
7
8
9
10
Load 1
Load 2
G3PX
4to20mA
4to20mA
(250 Ω*)
4
5
G3PX
4
5
(250 Ω*)
G3PX
(600 Ω*)
+
--
Temperature
Controller
+
--
Temperature
or Process
Controller
Note: Two G3PX models can be connected in series to one OMRON Temperature
Controller (with an internal impedance of 600 Ω) with a current output.
*Impedance
2. A Temperature Controller with an output of 7 to 20 mA is used with the G3PX to change the duty.
Temperature
or Process
Controller
+
--
Load 1
Load 2
G3PX
4to20mA
DUTY
1
2
3
4
5
6
7
8
9
10
3
2
1
G32X-V3K External Variable
Resistor (3 kΩ) for duty setting
Note: You can change the duty with the external or internal ramp adjuster.
Internal DUTY
adjuster

G3PX
G3PX
6
ON/OFF Control
Single-phase Models
1. A Temperature Controller is used to change the duty of G3PX.
Temperature
Controller
1
2
3
4
5
6
7
8
9
10
3
2
1
Load 1
Load 2
G3PX
5/12/24 VDC
ON/OFF
DUTY
+
--
Internal DUTY
adjuster
G32X-V3K External
DUTY Adjuster (3 kΩ)
Note: You can change the duty with the external or internal variable resistor.
2. A Temperature Controller with a voltage output can control up to 20 G3PXs. The following voltage outputs can be used:
40 mA at 12 VDC
20 mA at 12 VDC
20 mA at 5 VDC
10 mA at 5 VDC
Connection Example
--+
3
5
G3PX
Temperature
controller
3
5
G3PX
3
5
G3PX
Manual Control
Single-phase Models
Load 1
Load 2
G3PX
DUTY
1
2
3
4
5
6
7
8
9
10
3
2
1Internal DUTY
adjuster
G32X-V2K External DUTY
Adjuster
Note: Fine duty adjustment is possible
with the external or internal resistor.
Use a right DUTY adjuster (2-kΩ
type) according to the G3PX model
as follows:
G32X-V2K (2 kΩ) for EUN- and
EC-series models

G3PX G3PX
7
Two-position Control
Single-phase Models
Load 1
Load 2
G3PX
1
2
3
4
5
6
7
8
9
10
H(High)
L (Low) RY
G32X-V2K External DUTY
Adjuster
Note: 1. A temperature controller with relay output or a single relay can be used with the
G3PX in two-position (high-and low-position) control, in which case the relay
contact current is 30 mA at 12 VDC with the External DUTY Adjuster set to 0 Ω.
2. Use a right DUTY adjuster (2- or 3-kΩtype) according to the G3PX model as
follows: G32X-V21K (2 kΩ) for EUN- and EC-series models.
JSETTING OF BASE-UP OUTPUT (G3PX-2j0EUN SERIES)
The base-up output can be adjusted with the base-up adjuster knob. It is also possible to control the base-up output for the full scale of 4 to
20-mA input current by adjusting the duty adjuster.
JREPLACEMENT PARTS
G32X-A Power Device Cartridge
The temperature indicator will be lit in red if the power element is damaged. If the power element is damaged due to overcurrent or other rea-
sons, the power element and its peripheral parts can be replaced.
The power element and its peripheral parts can be replaced without disconnecting the wires of the G3PX.
Improve the heat radiation of the G3PX before replacing the Cartridge.
The temperature indicator will not be lit in red if the G3PX has overcurrent due to load short-circuiting or other reasons over a short time.
Appearance
G32X-A20 G32X-A40 G32X-A60
Replacement of G32X-A20 Power Device Cartridge
Use the special tool (provided) to extract the Cartridge for replace-
ment with a new one.
Extraction
Follow the procedures below to dismount the Power Device Car-
tridge from the G3PX.
1. Switch off the power.
2. Remove the terminal cover.
3. Hook the tool on the indented portions of the Power Device
Cartridge as shown in the illustration and pull up the Power
Device Cartridge vertically.
Special tool
Indented
portions
Terminal cover

G3PX
G3PX
8
Mounting
Mount the Power Device Cartridge as follows:
1. Apply silicone grease (provided with the G32X-A) to the entire
surface of the heat sink.
2. Make sure there is no dust or pieces of wire on the heat sinks
of the G32X-A or the G3PX.
3. Insert the Cartridge into the opening of the G3PX so that the
letters on the Cartridge and those on the G3PX are in the
same direction and sides A and B are even.
A
B
4. Attach the terminal cover.
5. Switch on the power and check the G3PX to be sure it works
properly.
G32X-A40/60
The G32X-A40 and G32X-A60 are secured with screws.
Extraction
Remove the Power Device Cartridge as follows:
1. Switch off the G3PX.
2. Remove the terminal cover.
3. Be sure to turn off the G3PX and loosen the screws located in
the upper center and lower center. These screws are
connected to terminals 1 and 2.
Loosen
Loosen
4. Loosen the screws on both corners.
Loosen
Loosen
5. Hold the indented part of both corners to remove the
Cartridge.
Mounting
1. Apply silicone grease (provided with the G32X-A) to the entire
surface of the heat sink.
2. Make sure there is no dust or pieces of wire on the heat sinks
of the G32X-A or the G3PX.
3. Insert the Cartridge into the opening of the G3PX so that the
letters on the Cartridge and those on the G3PX are in the
same direction and sides A and B are even.
A
B
4. Tighten the screws on both corners with a tightening torque of
0.59 to 0.78 N Sm.
5. Tighten the center screws of the G3PX with a tightening
torque of 0.59 to 0.78 N Sm.
6. Attach the terminal cover.
7. Switch on the power and check the G3PX to be sure it works
properly.

G3PX G3PX
9
Dimensions
Unit: mm (inch)
JPOWER CONTROLLERS
G3PX-220EjSeries
G3PX-240EjSeries
Mounting Holes
Four, 4.5 dia.
or M4 holes
140±0.3
(5.51)
65±0.3
(2.56)
119 (4.68)
108
120
109.8
8.6
8.6 Two, M4 screws
Two, 4.6 dia.
holes
140±0.2
50±0.2
70 (2.76) max.
130 (5.12) max.
Two, R2.3
holes
130
150
(5.91)
max.
119 (4.68)
108
120
13
13
109.8
130 (5.12) max.
140±0.2
65±0.2
85 (3.35) max.
Two, R2.3
holes
Two, M5 screws
Two, 4.6 dia.
holes
150
(5.91)
max.
130
Four, 4.5 dia.
or M4 holes
140±0.3
(5.51)
50±0.3
(1.97)
Mounting Holes
7.6
7.6

G3PX
G3PX
10
G3PX-260EjSeries Mounting Holes
140±0.3
(5.51)
80±0.3
(3.15)
Four 4.5-dia. or
M4 holes
114
108
120
17
17
Two, 4.6 dia.
holes
Two,
R2.3
holes
130 (5.12) max.
150
(5.91)
max.
140±0.2
Two, M6 screws
130 109.8
80±0.2
100 (3.94) max.
7.6
JCURRENT TRANSFORMERS
G32X-CT03jSeries
G32X-CT10jSeries
Mounting Holes
Note: 1. Color of the hole
EC Series: Light gray
2. The G32X-CT03jincorporates 30-cm solderless terminals and the G32X-CT10j
incorporates 100-cm solderless terminals.
50±0.2 (1.97)
Two 4.5-dia. or M4 holes
50
30
9.5 24 35
14 (0.55)
55 (2.17)
40 (1.57) 15 (0.59)
dia hole
(See Note 1)
60 (2.36) max.
(See Note 2)
17