Omron G3ZA Manual
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Omron G3ZA Manual

Omron G3ZA Manual

Multi-channel power controller g3za series
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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.
Features
Comparison between the G3ZA and Normal Power Controllers
Item
Connec-
Power Controllers Controlled Using Current Output of 4 to 20 mA
tions
Power Controller
4 to 20 mA commands
Power controller Power controller Power controller
Control
Phase Control
method
• Response is fast and high-precision temperature control is possible.
• Harmonics and noise are problems.
Normal Power Controllers
Multi-channel Temperature Controller
Power Controller
Power Controller
Programmable Controller
Power controller
8 total
Version Upgrade for Improved Functionality (V2)
Refer to Safety Precautions on page 9 for safety
information.
Control Using Communications from a Host Device
Direct connection is possible using an EJ1 Modular Temperature Controller.
EJ1N
EJ1N-TC4 or
-HFU
EJ1N-TC2
PWR
COM1
PWR
COM1
RUN
COM2
RUN
COM2
EJ1-HFU
EJ1-TC4
ERR
COM3
ERR
COM3
ALM
ALM
SW1
SW1
Modular Temperature
ON
ON
Controller (EJ1)
SW2
SW2
READY
READY
SD/RD
SD/RD
SW1
OCC
OCC
SW2
ERROR
ERROR
Eight SSRs
G3ZA
G3ZA
Programmable Controller
RS-485 commands
G3ZA-8
SSR
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.
Multi-channel Power Controller
®
G3ZA
EJ1C
-EDU
PWR
COM1
PWR
COM1
RUN
COM2
RUN
COM2
EJ1-TC4
EJ1-TC4
ERR
COM3
ERR
COM3
ALM
ALM
SW1
SW1
ON
ON
SW2
SW2
READY
SD/RD
SW1
SW1
OCC
SW2
SW2
ERROR
Eight SSRs
Eight SSRs
G3ZA
Serial Communications Unit (RS-485)
SSR
SSR
SSR
8 total
G3ZA
1

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Summary of Contents for Omron G3ZA

  • Page 1 • Combining with special CT for150-A current detection. Refer to Safety Precautions on page 9 for safety Note: The G3ZA must be used in combination with an SSR without the zero cross information. function when the soft-start function is used.

  • Page 2: Model Number Structure

    PFP-M 30.0 dia. 0 to 150 A G3ZA-CT150L 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) G3ZA...

  • Page 3: Specifications

    Accessories Instruction Sheet 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 ■ Communications Specifications Current indication...
  • Page 4 Setting the Control Switching MV Threshold enables switching to phase control when the current value The G3ZA can be used for a variety of applications by selecting the is below the set value, and switching to optimum cycle control when SSR drive.

  • Page 5: Terminal Arrangement

    Lit while communicating with the host. OCC (Orange) Lit while a control output is ON. Unit No. 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 ▲ ERROR (Red) Lights or flashes when an error is detected.
  • Page 6 Example for Connecting Two SSRs (e.g., heater) (e.g., heater) Note: Connect to one of the three phases on the load power supply Note: Connect a power supply with the same phase as the SSRs to input terminals of the G3ZA.
  • Page 7 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...
  • Page 8 81.5 33.5 30 dia. 14.5 14.5 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.) DIN Track End Plate (Stopper) PFP-100N PFP-M PFP-50N...

  • Page 9: Safety Precautions

    • 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.

  • Page 10: Installation Example

    ■ Precautions for Correct Use Mounting End Plates Be sure to mount an End Plate on each side of the G3ZA so that it Wiring does not slide on the DIN Track. To mount an End Plate, hook the bottom of the End Plate on the Use M3 crimp terminals.

  • Page 11: Solid State Relays

    G3PA-260BL-VD DC5-24 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. G3PA Solid State Relays...
  • Page 12 5 to 24 VDC 4 to 30 VDC 20 mA max. 4 VDC max. 1 VDC min. Note: The G3PA uses the input current as a constant current (at an ambient temperature of 25 C). Output Model Applicable load Rated load voltage Load voltage range Load current (See note.)

  • Page 13: Engineering Data

    G3PA-240BL-VD G3PA-260BL-VD G3PA-220BL-VD G3PA-210BL-VD Ambient temperature (˚C) Ambient temperature (˚C) Ambient temperature (˚C) 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 1,000 5,000 1,000 5,000...
  • Page 14 G3PA-220BL-VD Note: Without Terminal Note: With Terminal Cover Cover 4.6 dia. Terminal Arrangement/ Mounting holes Linking Two, M4 terminal B1 Internal Connections Two, 4.5 dia. or M4 holes Two, ±0.2 max. M3.5 ±0.3 Linking terminal B2 ±0.2 elliptical 37 max.
  • Page 15 G3PA-260BL-VD Mounting holes Note: Without Terminal Cover Note: With Terminal Cover 4.6 dia. Two, 4.5 dia. Two, M5 Two, M3.5 or M4 ±0.2 max. ±0.3 ±0.2 elliptical hole 110 max. Terminal Arrangement/ ±0.3 Internal Connections max. 89 G3PA Solid State Relays...

  • Page 16: Close Mounting

    (axial fan) Air inlet 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.
  • Page 17 G3PA Solid State Relays...
  • Page 18 G3PA Solid State Relays...
  • Page 19 G3PA Solid State Relays...

  • Page 20: Warranty And Application Considerations

    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...

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