Omron G3ZA-4H203-FLK-UTU, G3ZA-4H403-FLK-UTU, G3ZA-8A203-FLK-UTU, G3ZA-8A403-FLK-UTU User Manual

Multi-channel Power Controller G3ZA 1

Multi-channel Power Controller

G3ZA

Optimum Cycle Control for High-precision Control
with Low Noise

• Smaller than a Normal Power Controller.

• Enables low-noise power control in combination with zero-cross SSRs.
(See note.)

• One Controller can control up to 8 SSRs.

• RS-485 communications to set manipulated variables and heater
burnout detection. The Smart FB Library for the G3ZA can also be used.

•CE Marking

Main Upgraded Functions

• Soft-start function added for lamp heaters.

• Three-phase optimum cycle control added for three-phase heaters.

• Combining with special CT for150-A current detection.

Note: The G3ZA must be used in combination with an SSR without the zero cross

function when the soft-start function is used.

Version Upgrade for Improved Functionality (V2)

Refer to Safety Precautions on page 9 for safety
information.

®

Features

Comparison between the G3ZA and Normal Power Controllers

Item Normal Power Controllers G3ZA

Connec­tions

Power Controllers Controlled Using Current Output of 4 to 20 mA Control Using Communications from a Host Device

• Direct connection is possible using an EJ1 Modular Temperature Controller.

Control
method

Phase Control

• Response is fast and high-precision temperature control is possible.

• Harmonics and noise are problems.

Optimum Cycle Control (High-precision Zero Cross Control)

• Outputs are turned ON and OFF each half cycle.

• Zero-cross control is performed.

• Noise is suppressed while achieving high-speed response with high-

precision temperature control.

Power Controller Power Controlle

r

Power Controller

Multi-channel Temperature Controller

EJ1N

-HFU

EJ1N-TC4 or

EJ1N-TC2

Modular Temperature
Controller (EJ1)

EJ1C

-EDU

COM1
COM2
COM3

PWR
RUN
ERR
ALM

SW1

ON

SW2

21345678

EJ1-TC4

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

COM1
COM2
COM3

PWR
RUN
ERR
ALM

SW1

ON

SW2

21345678

EJ1-TC4

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

COM1
COM2
COM3

PWR
RUN
ERR
ALM

SW1

ON

SW2

21345678

EJ1-TC4

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

COM1
COM2
COM3

PWR
RUN
ERR
ALM

SW1

ON

SW2

21345678

EJ1-HFU

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

SW2

SW1

ERROR

OCC

SD/RD

READY

SW2

SW1

ERROR

OCC

SD/RD

READY

SW2

SW1

ERROR

OCC

SD/RD

READY

G3ZA

Eight SSRs

G3ZA

Eight SSRs

G3ZA

Eight SSRs

Power controller Power controller Power controller Power controller

8 total

Programmable Controller

4 to 20 mA commands

G3ZA-8 SSR SSR SSR SSR

8 total

Programmable Controller

RS-485 commands

Serial Communications Unit (RS-485

)

2 Multi-channel Power Controller G3ZA

Model Number Structure

■ Model Number Legend

Ordering Information

■ List of Models

Note: When using the heater burnout detection function, CTs must be ordered separately.

■ Accessories (Order Separately)

No. Meaning Code Specifications No. Meaning Code Specifications
1 No. of control points 4 4 channels 4 Load power supply voltage 2 100 to 240 VAC

8 8 channels 4 400 to 480 VAC

2 Control method None Optimum cycle control 5 Communications specifications 03 RS-485
3 Heater burnout detection H Yes 6 Communications protocol FLK CompoWay/F

A None 7 International standards UTU Approved by TÜV, UL, and

CSA.

12 34

G3ZA- @ @ @ @ @ - @ - @

567

Name Number of control channels Heater burnout detection Load power supply voltage Model

Multi-channel Power
Controller

4 Supported 100 to 240 VAC G3ZA-4H203-FLK-UTU

400 to 480 VAC G3ZA-4H403-FLK-UTU

8 Not supported 100 to 240 VAC G3ZA-8A203-FLK-UTU

400 to 480 VAC G3ZA-8A403-FLK-UTU

Upgraded Functionality

Refer to page 7 for details. Upgrade functions are marked with “V2”.

Name Hole diameter Detection

current

Model

Current Transformer
(CT)

5.8 dia. 0 to 50 A E54-CT1

12.0 dia. 0 to 50 A E54-CT3

30.0 dia. 0 to 150 A G3ZA-CT150L

Name Model

DIN Track PFP-100N

PFP-50N

End Plates (stoppers) PFP-M

Be sure to read the precautions for correct use and other precautions in the following user’s manual before using the
Power Controller.

G3ZA Multi-channel Power Controller User’s Manual (Cat. No. Z200)

Multi-channel Power Controller G3ZA 3

Specifications

■ Ratings

Note: 1. CT inputs are provided only on Models with heater burnout detection.

2. Use an SSR without the zero-cross function (G3PA-@BL-VD) for soft-start optimum cycle control. (Refer to page 11.)

■ Performance

Note: When measured with percentage selected for the current monitor

parameter and the maximum current measurable with the CT at 100%.

■ Communications Specifications

■

Current Transformer Specifications
(Order Separately)

Note: The maximum continuous current is 50 A for the G3ZA in combination

with the E54-CT3.

Item

Load power supply

voltage range

100 to 240 VAC 400 to 480 VAC

Power supply voltage 100 to 240 VAC (50/60 Hz)
Operating voltage range 85 to 264 VAC
Power consumption 16 VA max.
Load power supply voltage 100 to 240 VAC 400 to 480 VAC
Load power supply voltage range 75 to 264 VAC 340 to 528 VAC
Manipulated variable input 0.0% to 100.0% (via RS-485 communications)
Current transformer input (See note 1.) Single-phase AC, 0 to 50 A (primary current of CT)

Single-phase AC, 0 to 150 A (primary current of CT)

Trigger output One voltage output for each channel, 12 VDC

±15%, Max. load current: 21 mA

(with built-in short-circuit protection circuit)

Alarm output NPN open collector, one output

Max. applicable voltage: 30 VDC, Max. load current: 50 mA
Residual voltage: 1.5 V max., Leakage current: 0.4 mA max.

Indications LED indicators
Control method Optimum cycle control

Soft-start optimum cycle control (See note 2.)
Three-phase optimum cycle control

Ambient operating temperature

−10 to 55°C (with no icing or condensation)

Ambient operating humidity 25% to 85%
Storage temperature −25 to 65°C (with no icing or condensation)
Elevation 2,000 m max.
Accessories Instruction Sheet

V2

V2

V2

Current indication
accuracy

Current Range

0 to 50 A,

±3 A

0 to 150 A, ±9 A
0 to 100%, ±6% (See note.)

(for models with heater burnout detection)

Insulation resistance 100 M

Ω min. (at 500 VDC) between primary and

secondary

Dielectric strength 2,000 VAC, 50/60 Hz for 1 min between primary

and secondary

Vibration resistance Vibration frequency: 10 to 55 Hz,

acceleration: 50 m/s

2

in X, Y, and Z directions

Shock resistance

300 m/s

2

three times each in six directions along

three axes

Weight Approx. 200 g (including terminal cover)
Degree of protection IP20
Memory protection EEPROM (non-volatile memory) (number of

writes: 100,000)

Installation environment Overvoltage category III,

pollution degree 2 (according to IEC 60664-1)

Approved standards UL508 (Listing), CSA22.2 No. 14

EN50178
EN61000-6-4 (EN55011: 1998, A1: 1999 Class A,
Group 1)
EN61000-6-2: 2001

Transmission line connections Multipoint
Communications method RS-485

Max. transmission distance 500 m

No. of nodes 31 (via multidrop connections)
Synchronization method Stop-start synchronization
Communications baud rate 9.6, 19.2, 38.4 or 57.6 kbps,

Default: 9.6 kbps

Transmission code ASCII
Communications data length 7 or 8 bits, Default: 7
Communications stop bits 1 or 2 bits, Default: 2
Communications parity Vertical parity: None, even, or odd,

Default: Even

Flow control None

Item Specification

Model number E54-CT1 E54-CT3 G3ZA-CT150L

Max. continuous
heater current

50 A 120 A (See note.) 150 A

Detection current
with G3ZA
connected

50 A 150 A

Dielectric strength 1,000 VAC for 1 min 2,000 VAC for 1

min

Vibration resistance

98 m/s

2

, 50 Hz

Weigh t Approx. 11.5 g Approx. 50 g Approx. 130 g
Accessories None Connection

terminals (2)
Plugs (2)

None

4 Multi-channel Power Controller G3ZA

Applicable SSR and Control
Methods

The G3ZA can be used for a variety of applications by selecting the
SSR drive. For example, inrush current can be reduced at startup by
selecting soft-start optimum cycle control if a single-phase halogen
heater is used.

Optimum Cycle Control

• Optimum cycle control is performed by driving SSRs according to

load power detection and trigger signals. (Zero-cross SSRs are
used.)

• Noise is suppressed while ensure high-speed response by turning
outputs ON and OFF each half cycle to achieve high-precision
temperature control.

Note: Refer to Connection Configuration on page 6 for connecting to

an SSR.

Soft-start Optimum Cycle Control

• Soft-start optimum cycle control is a control method that combines

phase control and optimum cycle control.

• Smooth switching for phase control and optimum cycle control
enables control of outputs with limited inrush current even for loads
with characteristics like halogen heaters.

• Use a single-phase heater SSR (without the zero-cross function)
for soft-start optimum cycle control. Refer to G3PA on page 11 for
details on SSRs without the zero-cross function.

• Control is switched according to the Control Switching MV Thresh­old.

• Set the Soft-start Up/Down Time to control output.

• Current is not detected during phase control. The current value

(heater ON current value, heater OFF current value, and effective
current value) will be 0 A, and the current error alarm (heater burn­out detection, SSR short-circuit detection, and heater overcurrent
detection) will always turn OFF.

Setting the Control Switching MV Threshold

The Control Switching MV Threshold function is enabled when soft­start optimum cycle control is used. Setting the Control Switching MV
Threshold enables switching to phase control when the current value
is below the set value, and switching to optimum cycle control when
the current value is above the set value. The default setting is 20.0%.

Example: For channel 1, soft-start optimum cycle control is
performed under the following conditions: control switching MV:

40.0%, MV: 100.%, soft startup time: 20 s.
(1) Ch 1 Control Switching MV Threshold is set to 40.0% and Ch1

MV is set to 100.0% by writing to the variable area.

(2) Ch1 Soft Startup Time remains at the default. Setting is not

required.

(3) Once the Control Switching MV Threshold is written, the

changes are saved and become enabled the next time the
power is turned ON.

Three-phase Optimum Cycle Control

• Three-phase optimum cycle control is a control method that turns

the output ON and OFF every two cycles.

• Turning the output ON and OFF every two cycles enables optimum

cycle control for three-phase heaters.

• Use a three-phase heater SSR with a zero-cross function for three-

phase optimum cycle control.

Note: Refer to page 6 for details on connecting to three-phase

heaters.

The following figure shows the current waveform of each phase for a
MV of 50% when a three-phase heater SSR is connected.

SSR Control

method

CT (4-channel

models only)

Example of

supported

heater

Single-phase
heater SSR
with zero­cross function

Optimum cycle
control

0 to 50 A or 0
to 150 A: 4
Units

SIngle-phase
heater

Single-phase
heater SSR
without zero­cross function

Soft-start
optimum cycle
control

0 to 50 A or 0
to 150 A: 4
Units

Single-phase
halogen
heater

Three-phase
heater SSR
with zero­cross function

Three-phase
optimum cycle
control

0 to 50 A or 0
to 150 A: up to
2 Units

Three-phase
heater

V2

V2

V2

1/5th ON (20%)

Manipulated
variable: 20%

V2

Variable

type

Parameter Setting

range

Default

85/C5 Ch1 to Ch8 Control

Switching MV
Threshold

0.0% to

100.0%

20.0

Phase control Optimum cycle control

Soft startup time (20 s)

100.0%

MV

Tim

e

40.0%

V2

Load power
supply

R-S phase

S-T phase

R-T phase

Multi-channel Power Controller G3ZA 5

Connections

■ Terminal Arrangement

Note: 1. The following CTs can be used (sold separately):

0 to 50 A: E54-CT1 and E54-CT3
0 to 150 A: G3ZA-CT150L

2. Use C-Grid SL connectors from Molex Inc.

Operation Indicators

Setting Switches

• Always turn OFF the power supply before setting the switches. The

switch settings are read only when the power supply is turned ON.

• Use a flat-blade screwdriver to set the switches and be sure not to
leave a switch set between two settings.

Communications Unit Number

Set a communications unit number on SW1 so that the host system
can identify the Controller.

Note: A unique unit number must be set for each node (Controller) on

the same communications line. Do not set the same unit
number for more than one node.
If 17 or more Units must be connected, refer to the G3ZA Multi­channel Power Controller User’s Manual (Cat. No. Z200).

Communications Baud Rate

Set the baud rate for communicating with the host system on SW2.

+

+

+

+

−

+

+

+

−

+

−

+

+

+

−

+

−

Trigger output
12 VDC, 21 mA

Trigger output
12 VDC, 21 mA

Trigger output
12 VDC, 21 mA

Trigger output
12 VDC, 21 mA

Models with 8 Channels (Control Points),
No CT Inputs, and No Heater Burnout Detection

Trigger output
12 VDC, 21 mA

Models with 4 Channels (Control Points),
CT Inputs, and Heater Burnout Detection

Trigger output
12 VDC, 21 mA

Alarm output
30 VDC, 50 mA

Power supply voltage
100 to 240 VAC
50/60 Hz

Load power supply voltage
100 to 240 VAC
50/60 Hz

Models with Load Power Supply Voltage
of 100 to 240 V

Power supply voltage
100 to 240 VAC
50/60 Hz

Models with Load Power
Supply Voltage of 400 to 480 V

Load power supply voltage
400 to 480 VAC
50/60 Hz

19 20 21 22 23 24

CH5 CH6 COM CH7 CH8 COM CH1 CH2 COM CH3 CH4 COM

13 14 15 16 17 18

CH1 CH2 COM CH3 CH4 COM CH1 CH2 COM CH3 CH4 COM

19 20 21 22 23 24

13 14 15 16 17 18

CT

CT

CT

CT

7

B (+) A (−)

RS-485

89 11

12 4 6

7

RS-485

8

12 4 6

B

A

SW2

SW1

ERROR

OCC

SD/RD

READY

ERROR

OCC

SD/RD

READY

SW1

SW2

−

B (+) A (−)

(See note 1.)

(See note 1.)

(See note 1.) (See note 1.)

Alarm output connector (See note 2.)
(only models with load power supply
voltage of 400 to 480 V)

Note: Connect the power supply (100 to 240 VAC) for the

G3ZA across terminals 1 and 2 and the load power
supply for the SSR loads across terminals 4 and 6.

Note: Connect the power supply (100 to 240 VAC) for the

G3ZA across terminals 1 and 2 and the load power
supply for the SSR loads across terminals 4 and 6.

30 VDC, 50 mA

Alarm output

Trigger output

12 VDC,
21 mA

Trigger output

12 VDC,
21 mA

Trigger output

12 VDC,
21 mA

Trigger output

12 VDC,
21 mA

Trigger output

12 VDC,
21 mA

Trigger output

12 VDC,
21 mA

C-Grid SL Housing
Model: 51030-0630

Operation indicator Meaning

READY (Green) Lit while power is being supplied.
SD/RD (Orange) Lit while communicating with the host.
OCC (Orange) Lit while a control output is ON.
ERROR (Red) Lights or flashes when an error is detected.

SW1 SW2

SW1 0123456789ABCDEF
Unit No. 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15

▲

Default

SW2 01234 to F
Baud rate 9.6 19.2 38.4 57.6 Do not set.

▲

Default

6 Multi-channel Power Controller G3ZA

■ Connection Configuration

Single-phase SSR

Note: Connect a power supply with the same phase as the SSRs to

the load power supply terminals on the G3ZA.

Three-phase SSR

Note: Connect to one of the three phases on the load power supply

input terminals of the G3ZA.

■ Host Device Connection Example

Example of Connection to EJ1 Modular Temperature Controller

Example of Connection to PLC

Trigger
signal

G3ZA

Example for Connecting Two SSRs

R phase
S phase
T phase

Host device

Control
power
supply

SSR

CT (4-channel model only)

SSR

Load

(e.g., heater)

Load

(e.g., heater)

Load power
supply

V2

G3ZA

R phase
S phase
T phase

Host device

Control
power
supply

Load

Trigger signal

SSR
(three­phase)

CT (4-channel model only)

Load power
supply

Eight SSRs Eight SSRs Eight SSRs

SW2

SW1

ERROR

OCC

SD/RD

READY

G3ZA

PC

PLC PT

PC

EJ1N-TC4

or

EJ1N-TC2

EJ1C-EDU

Port A (connector): USB connection possible
using a E58-CIFQ1 (sold separately)

Port B: RS-485 (CompoWay/F)

COM1
COM2
COM3

PWR
RUN
ERR
ALM

SW1

ON

SW2

21345678

EJ1-TC4

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

COM1
COM2
COM3

PWR
RUN
ERR
ALM

SW1

ON

SW2

21345678

EJ1-TC4

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

COM1
COM2
COM3

PWR
RUN
ERR
ALM

SW1

ON

SW2

21345678

EJ1-TC4

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

SW2

SW1

ERROR

OCC

SD/RD

READY

SW2

SW1

ERROR

OCC

SD/RD

READY

G3ZAG3ZA

Host Devices

G3ZA
Connection port

G3ZA
Connection port

G3ZA
Connection port

CX-Thermo for setup

PLC

Alarm output

Load power supply
(for zero-cross detection)

Power supply for
Multi-channel
Power Controller

RS-485

Heater

G3ZA

SSR

Multi-channel Power Controller G3ZA 7

Upgraded Functions

Upgraded Functions

1. Added soft-start optimum cycle control.

2. Added three-phase optimum cycle control.

3. Increased heater burnout detection to 150 A.

4. Achieved effective current value monitoring.

5. Changed current error detection from a fixed value to a variable value.

6. Changed detection time unit to seconds for communications errors.

New functions are marked with “V2”.

Identifying Upgraded Models

Check the label on the Power Controller or the box to determine the version. Models not marked “Ver. 2.0” are version 1.0.

Box Label Power Controller Label

Dimensions

Note: All units are in millimeters unless otherwise indicated.

■ Multi-channel Power Controllers

V2

V2

Version

OMRON Corporation

MADE IN JAPAN

Versio

n

Mounting Hole Dimensions
(For Direct Mounting)

4.6 dia.

111 max.

(TYP. 110)

7 × 5 = 35

Two, 4.2 dia. or M4

SW2

SW1

ERROR

OCC

SD/RD

READY

91

5.3

9

9

76 max.

63

84

5.6

43

35

±0.3

45 max.

R 2.3

R 4.5

35

±0.3

84

±0.3

G3ZA-4H203-FLK-UTU
G3ZA-4H403-FLK-UTU
G3ZA-8A203-FLK-UTU
G3ZA-8A403-FLK-UTU

8 Multi-channel Power Controller G3ZA

■ Accessories (Order Separately)

30

21

15

5.8 dia.

25

3

40

10.5

2.8

7.5

10

Two, 3.5 dia.

Current Transformer (CT)

E54-CT1

40 × 40

30

12 dia.

9

2.36 dia.

15

30

Two, M3 (depth: 4)

Approx.
3 dia.

18

(22)

Approx. 6 dia.

Plug

Contactor

Lead

E54-CT3 Accessories

• Contactors

• Plugs

Current Transformer (CT)

E54-CT3

1.8
76

4.1

10

10

5.9

5.2

20

Two M5 screw holes or
two 5.5-dia. holes

57

30 dia.

14.5

14.5

6

8.5

50

33.5

34.5

81.5

13.5

86

54

63

11

4.7

Four, M4 × 6 screws

17

20

26 max.

9.3

1.7

1.7

9.3

76

Mounting Hole Dimensions

Current Transformer (CT)

G3ZA-CT150L

Note: The G3ZA-CT150L is for use only in combination with the G3ZA.

Wire terminal k and terminal l. (Do not use terminal kt and terminal lt.)

4.5

15 25 25

10 10

1,000 (500)*

25 25 15 (5)*

35±

0.3

7.3±

0.15

27±

0.15

1

* Dimensions in parentheses
are for the PFP-50N.

DIN Track

PFP-100N
PFP-50N

50

11.5

10

M4 x 8
pan-head
screw

M4 spring
washer

4.8

1.3

1.8

1

10

6.2

1.8

35.5 35.3

End Plate (Stopper)

PFP-M

Multi-channel Power Controller G3ZA 9

Safety Precautions

!WARNING

!CAUTION

■ Precautions for Safe Use

1. Do not use the product in the following locations.

• Locations subject to direct radiant heat from heating equipment

• Locations where the product may come into contact with water

or oil

• Locations subject to direct sunlight

• Locations where dust or corrosive gases (in particular, sulfuric

or ammonia gas) are present

• Locations subject to extreme temperature changes

• Locations where icing or condensation may occur

• Locations subject to excessive shocks or vibration

2. Use this product within the rated load and power supply.

3. Ensure that the rated voltage is achieved no longer than 2 s after

turning the power ON.

4. Use/store within the rated temperature and humidity ranges.

5. Minimum mounting distance of G3ZA is 10 mm.

When mounting the G3ZA near the SSRs, mount the G3ZA so as
to not interfere with the heat dissipation of the SSR.

6. Use the specified size of insulated-type crimp terminals (M3,
width: 5.8 mm max.) for wiring and attach insulative sleeves. To
connect bare wires, use AWG22 (cross section: 0.326 mm

2

) to

AWG14 (cross section: 2.081 mm

2

) to wire the power supply

terminals and AWG22 (cross section: 0.326 mm

2

) to AWG16

(cross section: 1.039 mm

2

) for other terminals.

7. Be sure to confirm the correct terminal and polarity when wiring
the terminal block and connectors.

8. Do not connect any conductors to unused terminals.

9. In order to prevent inductive noise, wire the lines connected to the

product separately from power lines carrying high voltages or
currents. Do not wire in parallel with or in the same cable as
power lines. Other measures for reducing noise include running
lines along separate ducts and using shield lines.

10.Attach a surge suppressor or noise filter to peripheral devices that
generate noise (in particular, motors, transformers, solenoids,
magnetic coils, or other devices that have an inductance
component).
Do not install the product near devices generating strong high­frequency fields or surges. When using a noise filter, check the
voltage and current and install it as close to the product as
possible.

11.For a safety disconnection of the power-line in the application, the
equipment must be provided with disconnecting devices suitable
for isolation.
(e.g., circuit breakers defined in IEC60947-2, power switches
defined in IEC60947-3, power plugs, etc.)

Version 1.0 Usage Precautions

Version 1.0 is for single-phase loads only. Connect a single-phase
zero-cross SSR. Do not connect a three-phase SSR, or to an SSR
that is not magnet relay or zero-cross.

Version 2.0 Usage Precautions

• Check the G3ZA settings and select the correct SSR from the

following when wiring an SSR.

• SSR with zero-cross function for single-phase heaters

• SSR without zero-cross function for single-phase heaters

• Three-phase SSR

Do not connect a magnet relay.

• Check the G3ZA settings and select the correct CT from the

following when wiring a CT.

• E54-CT1

• E54-CT3

• G3ZA-CT150L

Do not touch the terminals and the wires while power is
being supplied. Doing so may possibly result in electric
shock. Make sure that the terminal cover is installed
before using the product.

Do not allow pieces of metal, wire clippings, or fine
metallic chips or filings from installation to enter the
product. Doing so may occasionally result in electric
shock, fire, or malfunction.

Do not use the product in locations of flammable or
explosive gases. Doing so may occasionally result in
minor or moderate explosion, causing minor or moderate
injury, or property damage.

Do not attempt to disassemble, repair, or modify the
product. Doing so may occasionally result in minor or
moderate injury due to electric shock.

Perform correct setting of the product according to the
application. Failure to do so may occasionally cause
unexpected operation, resulting in minor or moderate
injury, or damage to the equipment.

Ensure safety in the event of product failure by taking
safety measures, such as installing a separate monitoring
system to provide alarms for preventing excessive
temperature rise. Product failure may occasionally
prevent control operation, resulting in damage to the
connected facilities and equipment.

Tighten the terminal screws securely using a tightening
torque within the following ranges. Loose screws may
occasionally cause fire, resulting in minor or moderate
injury, or damage to the equipment.
Terminal screws: 0.40 to 0.56 N·m

10 Multi-channel Power Controller G3ZA

■ Precautions for Correct Use

Wiring

Use M3 crimp terminals.

Use wires that withstand a minimum of 70

°C.

DIN Track

Secure the DIN Track with screws in at least three locations.

DIN Track: PFP-50N (50 cm)/PFP-100N (100 cm)

Mounting the G3ZA

Mount the G3ZA as shown in the diagram. First, pull down the DIN
Track mounting hook (1) and hook the top of the G3ZA on the DIN
Track (2). Then press the G3ZA onto the DIN Track far enough so
that it can be locked in place (3) and push the DIN Track mounting
hook up to lock the G3ZA in place (4).

Removing the G3ZA

Use a flat-blade screwdriver to pull down the DIN Track mounting
hook (1) and then pull out on the bottom of the G3ZA (2).

Mounting End Plates

Be sure to mount an End Plate on each side of the G3ZA so that it
does not slide on the DIN Track.

To mount an End Plate, hook the bottom of the End Plate on the
bottom of the DIN Track (1), place the top of the End Plate on the DIN
Track (2), and then pull down on the End Plate. Tighten the screw on
the End Plate to secure it.

Note: Always mount one End Plate on each side of the G3ZA.

Installation Example

When installing the SSRs next to the G3ZA, provide sufficient space
between the G3ZA and SSRs, as shown in the following diagram.

Reference example:
When applying 25 A to the G3PB-225B-VD (a manipulated variable
of 100%), separate the SSRs from the G3ZA by at least 50 mm.

Do not touch the G3ZA while power is being supplied.

Mounting with Screws

Mounting Dimensions (Unit: mm)

5.8 mm max.

5.8 mm max.

(4)

(3)

(2)

(1)

(1)

(2

)

ΣΩ2

ΣΩ1

ΕΡΡΟΡ

ΟΧΧ

Σ∆/Ρ∆

ΡΕΑ∆Ψ

(1)

(2)

End Plate End Plate

SW2

SW1

ERROR

OCC

SD/RD

READY

50 mm min. 50 mm min.

SSR

G3ZA

SSR

35±

0.3

84±

0.3

Two, 4.2 dia.
or M4

Solid State Relays G3PA 11

Solid State Relays

G3PA

Extremely Thin Relays Integrated with Heat
Sinks

• Comply with VDE 0160 (finger protection), with a dielectric
strength of 4,000 V between input and load.

• Downsizing achieved through optimum design of heat sink.

• Mounting possible via screws or via DIN track.

• Certified by UL, CSA, EN, and VDE (reinforced insulation).

• Recommended for use with the soft-start function of the G3ZA.

Ordering Information

■ List of Models

Note: 1. The rated output load depends on the ambient temperature. Refer to Engineering Data.

2. The loss time will increase if 75 VAC or less is used. Check operation using the actual load.

Isolation Zero cross function Indicator Rated output load (See note 1.) Rated input voltage Model

Phototriac
coupler

No Yes 10 A at 24 to 240 VAC (See note 2.) 5 to 24 VDC G3PA-210BL-VD DC5-24

20 A at 24 to 240 VAC (See note 2.) G3PA-220BL-VD DC5-24
40 A at 24 to 240 VAC (See note 2.) G3PA-240BL-VD DC5-24
60 A at 24 to 240 VAC (See note 2.) G3PA-260BL-VD DC5-24

12 Solid State Relays G3PA

Specifications

■ Certified Standards

UL508, CSA22.2 No. 14, and EN60950-1

■ Ratings

Input (at an Ambient Temperature of 25°C)

Note: The G3PA uses the input current as a constant current (at an ambient temperature of 25°C).

Output

Note: The load current depends on the ambient temperature.

Refer to Engineering Data for further details.

■ Characteristics

Rated voltage Operating Voltage range Input current impedance

(See note.)

Voltage level

Must operate voltage Must release voltage

5 to 24 VDC 4 to 30 VDC 20 mA max. 4 VDC max. 1 VDC min.

Model Applicable load

Rated load voltage Load voltage range Load current (See note.) Inrush current

G3PA-210B(L)-VD 24 to 240 VAC (50/60 Hz) 19 to 264 VAC (50/60 Hz) 0.1 to 10 A (at 40°C) 150 A (60 Hz, 1 cycle)
G3PA-220B(L)-VD 0.1 to 20 A (at 40°C) 220 A (60 Hz, 1 cycle)
G3PA-240B(L)-VD 0.5 to 40 A (at 40°C) 440 A (60 Hz, 1 cycle)
G3PA-260B(L)-VD 0.5 to 60 A (at 40°C) 440 A (60 Hz, 1 cycle)

Item G3PA-210BL-VD G3PA-220BL-VD G3PA-240BL-VD G3PA-260BL-VD

Operate time 1 ms max.
Release time 1/2 of load power source cycle + 1 ms max.
Output ON voltage drop 1.6 V (RMS) max.
Leakage current 5 mA max. (at 100 VAC)

10 mA max. (at 200 VAC)

10 mA max. (at 100 VAC)
20 mA max. (at 200 VAC)

Insulation resistance 100 M

Ω min. (at 500 VDC)

Dielectric strength 4,000 VAC, 50/60 Hz for 1 min
Vibration resistance Destruction: 10 to 55 to 10 Hz, 0.375–mm single amplitude (mounted to DIN rail)

Shock resistance

Destruction: 300 m/s

2

(mounted to DIN rail)

Ambient operating
temperature

Operating: –30

°C to 80°C (with no icing or condensation)

Storage: –30

°C to 100°C (with no icing or condensation)

Certified standards UL508, CSA C22.2 (No.14, No.950), EN60950 File No. 5915ÜG

Ambient operating
humidity

Operating: 45% to 85%

Weight Approx. 260 g Approx. 340 g Approx. 460 g Approx. 900 g

Solid State Relays G3PA 13

Engineering Data

Dimensions

Note: All units are in millimeters unless otherwise indicated.

Load Current vs. Ambient Temperature

G3PA-210BL-VD, G3PA-220BL-VD G3PA-240BL-VD G3PA-260BL-VD

One Cycle Surge Current: Non-repetitive

Note: Keep the inrush current to half the rated value if it occurs repetitively.

G3PA-210BL-VD G3PA-220BL-VD G3PA-240BL-VD, G3PA-260BL-VD

30

20

10

8

5

0

100806040200−20−30

Ambient tem

p

erature (˚C

)

G3PA-220BL-VD

G3PA-210BL-VD

Load current (A)

50

40

30

20

10

16

0

100806040200−20−30

Ambient tem

p

erature (˚C

)

Load current (A)

80

60

40

20

25

0

100 806040200−20−30

Ambient temperature (˚C

)

Load current (A)

150

100

50

0

5,0001,000500200100503010

Energized time (ms)

Inrush current (A. Peak)

200

150

100

50

0

5,0001,000500200100503010

Energized time (ms)

Inrush current (A. Peak)

400

300

200

100

0

5,0001,000500200100503010

Energized time (ms)

Inrush current (A. Peak)

Linking
terminal B1

Two, M4 × 8

Linking
terminal B2

Two ,
M3.5
× 7.5

67

15

±0.2

4.6 dia.

4.6 × 5.6
elliptical
hole

100
max.

100
max.

90 91

38

90

±0.2

80

8.6

2.8

8.8

8.2

7.6

27 max.

4.5

Two, 4.5 dia. or M

4

90±0.3

15

±0.3

Trigger circuit

Input circuit

G

3PA-210BL-VD

Note: Without Terminal

Cover

Note: With Terminal

Cover

Mounting holes

Terminal Arrangement/
Internal Connections

14 Solid State Relays G3PA

Linking
terminal B1

Two, M4 × 8

Linking
terminal B2

Two ,
M3.5
× 7.5

67

25±0.2

4.6 dia.

4.6 × 5.6
elliptical
hole

100
max.

100
max.

90 91

38

90±0.2

80

8.6

2.2

8.8

13.2

7.6

37 max.

4.5

Two, 4.5 dia.
or M4 holes

90

±0.3

25±0.3

Trigger circuit

Input circuit

Mounting holes

Note: Without Terminal

Cover

Note: With Terminal

Cover

G3PA-220BL-VD

Terminal Arrangement/
Internal Connections

Linking
terminal B1

Two, M5 × 12

Linking
terminal B2

Two ,
M3.5
× 7.5

67

35±0.2

4.6 dia.

4.6 × 5.6
elliptical
hole

100
max.

100
max.

89

91

38

90

±0.2

80

13

13

18

7.6

47 max.

4.5

Two, 4.5 dia.
or M4

90

±0.3

35±0.3

Trigger circuit

Input circuit

Mounting holes

G3PA-240BL-VD

Terminal Arrangement/
Internal Connections

Note: Without Terminal

Cover

Note: With Terminal

Cover

Solid State Relays G3PA 15

Two, M5 × 12

Two, M3.5 × 7.5

67

35

±0.2

4.6 dia.

4.6 × 5.6
elliptical hole

100
max.

100
max.

89

91

38

90±0.2

80

13

13

18

7.6

110 max.

4.5

Two, 4.5 dia.
or M4

90

±0.3

35±0.3

A1

A2

1

2

Trigger circuit

Input circuit

G3PA-260BL-VD

Terminal Arrangement/
Internal Connections

Mounting holes

Note: Without Terminal Cover Note: With Terminal Cover

16 Solid State Relays G3PA

Safety Precautions

Close Mounting

SSR Mounting Pitch

Panel Mounting (At a rated ambient temperature of 40°C).

Relationship between SSRs and Ducts

Ventilation

Note: 1. If the air inlet or air outlet has a filter, clean the filter regularly

to prevent it from clogging and ensure an efficient flow of air.

2. Do not locate any objects around the air inlet or air outlet,

otherwise the objects may obstruct the proper ventilation of
the control panel.

3. A heat exchanger, if used, should be located in front of the

SSR Units to ensure the efficiency of the heat exchanger.

• Please reduce the ambient temperature of SSRs.
The rated load current of an SSR is measured at an ambient
operating temperature of 40

°C.

• An SSR uses a semiconductor in the output element. This causes
the temperature inside the control panel to increase due to heating
resulting from the passage of electrical current through the load. To
restrict heating, attach a fan to the ventilation outlet or air inlet of
the control panel to ventilate the panel. This will reduce the ambient
temperature of the SSRs and thus increase reliability. (Generally,
each 10

°C reduction in temperature will double the expected life.)

Example: For 10 SSRs with load currents of 20 A,

0.31

× 10 = 3.1

Thus, 4 fans would be required.
Size of fans: 92 mm

2

, Air volume: 0.7 m3/min,

Ambient temperature of control panel: 30

°C

If there are other instruments that generate heat in the control
panel other than SSRs, additional ventilation will be required.

EMC Directive Compliance

The G3PA complies with EMC Directives under the following
conditions.

• A film capacitor is connected to both sides of the load power supply
output.

• The input power supply cable length for 200-V models is less than
10 m.

Loss Time

Loss time will increase if the G3PA is used at a low voltage or
current. Check that there will be no problems with operation before
using the G3PA.

SSR

60 mm min.

Vertical direction

30 mm min.

80 mm min.

min.

Duct or airflow obstruction

SSR

SSR

SSR

Mounting surface

Mounting surface

Mounting surface

Duct or
airflow
obstruction

Duct or
airflow
obstruction

Vertical
direction

Airflow

(A height of no
more than half
the SSR's height is
recommended.)

Duct Height

If the ducts cannot be
shortened, place the SSR
on a metal base so that it
is not surrounded by the
ducts.

Use short ducts.

Do not surround the SSR
with ducts, otherwise the
heat radiation of the SSR
will be adversely affected.

Countermeasure (1) Countermeasure (2)

50 mm max.

SSR

SSR

SSR

Air inlet

Be aware of air flow

Duct or
air flow
obstruction

Ventilation
outlet
(axial fan)

SSR rated current (A) 10 A 20 A 30 A 40 A 60 A

Required number of fans
per SSR

0.16 0.31 0.47 0.62 0.93

OutputInput

G3PA

Load

Input cable length

Film capacitor

• 1 µF, 250 VAC
(G3PA-2@@)

Loss time

Solid State Relays G3PA 17

18 Solid State Relays G3PA

Solid State Relays G3PA 19

In the interest of product improvement, specifications are subject to change without notice.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

Cat. No. J147-E1-02A

0107 (0604)

OMRON Corporation

Industrial Automation Company

Control Devices Division H.Q.
Analog Controller Division

Shiokoji Horikawa, Shimogyo-ku,
Kyoto, 600-8530 Japan
Tel: [phone]/Fax: [phone]

Warranty and Application Considerations

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or
other period if specified) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT,
MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER
ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET
THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS,
OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON
CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.

In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE

PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED,
INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE
MODIFICATION OR REPAIR.

Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of
products in the customer's application or use of the products.

Take all necessary steps to determine the suitability of the product for the systems, machines, and equipment with which it will
be used.

Know and observe all prohibitions of use applicable to this product.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT

ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON
PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR
SYSTEM.

Disclaimers

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on improvements and other reasons. Consult with
your OMRON representative at any time to confirm actual specifications of purchased product.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.