G32A-EA 100-240AC

**Cycle Control Units G32A-EA** 

CSM_G32A-EA_DS_E_7_2 

## Refer to _Safety Precautions for All Power Controllers_ . 

## **Used in Combination with the G3PA to Enable High-precision Temperature Control** 

- Use cycle control to achieve power control with little noise. 

- Used in combination with the G3PA to connect to single- and three-phase loads. 

- Three types of input method available: Internal adjuster, external adjuster, or DC signals from 4 to 20 mA. 

- Streamline design. Both DIN track mounting and screw mounting possible. 

- Use linking terminals for close mounting of the G3PA. 

- Built-in isolation transformer. 

- Power supply range: 100 to 240 V. 

For the most recent information on models that have been certified for safety standards, refer to your OMRON website. 

## **Model Number Structure** 

## ■ **Model Number Legend** 

## **G32A-EA-US** 

**1 2 3** 

## **1. Basic Model Type** 

G32A: Accessory for G3PA 

**2. Basic Model Name** 

EA: Cycle Control Unit 

**3. Certification** 

US: Certified by UL and CSA 

## **Orderin Information g** 

## ■ **List of Models** 

|■**List of Models**||||
|---|---|---|---|
|**Name**|**Isolation transformer**|**Rated power supply voltage**|**Model**|
|Cycle Control Unit|Yes|100 to 240 VAC|G32A-EA-US|



## ■ **Accessories (Order Separately)** 

## **External Variable Resistor** 

**Model** G32A-E-VR 

**1** 

**G32A-EA** 

## **S ecifications p** 

## ■ **Ratings (at an Ambient Temperature of 25** ° **C)** 

|**Rated power**<br>**supply current**|**50 Hz**|**100 to 240 VAC**|40 mA max.|
|---|---|---|---|
||**60 Hz**|**100 to 240 VAC**||
|**Output signal**|||20 mA max. at 12 VDC±15% (at 25°C)|
|**Input signal**|||Current signal: 4 to 20 mA (input impedance: 352Ω)<br>Internal adjuster: 50 kΩ(1/4 W)<br>External adjuster: 50 kΩ(1/4 W)|
|**Output cycle rate**|||0 to 100%|
|**Control cycle**|||0.2 s|
|**Number of operable Units**|||3 G3PA-VD Relays max.|



## ■ **Characteristics** 

|■**Characteristics**||
|---|---|
|**Power supply voltage range**|75 to 264 VAC|
|**Dielectric strength**|1,500 VAC, 50/60 Hz for 1 minute (between AC power supply and input/output terminals)|
|**Insulation resistance**|100 MΩmax. (at 500 VDC)|
|**Vibration resistance**|10 to 55 to 10 Hz, 0.375-mm single amplitude (when mounted to DIN track)|
|**Shock resistance**|300 m/s2(approx. 30 G)|
|**Storage temperature**|–30 to 100°C (with no icingor condensation)|
|**Ambient temperature**|–30 to 80°C (with no icingor condensation)|
|**Ambient humidity**|45% to 85%|
|**Weight**|Approx. 100g|



## **En ineerin Data g g** 

## **Output Cycle Rate vs. Setting Value** 

## **Output Cycle Rate vs. Control Current** 

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ottPt tt tttT Ytwttt|<br>ati t|Vi tt tt<br>Pt > Yt i tt<br>Zr,<br>Setting value<br>Output cycle rate (%)<br>**----- End of picture text -----**<br>


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Pt tT T TA<br>a+ttiFt tt] YiYittt| | |<br>att<br>FL ITAJZTITtt ttt t o<br>Zeer<br>Control current<br>Output cycle rate (%)<br>**----- End of picture text -----**<br>


**2** ~~a~~ 

**G32A-EA** 

## **Nomenclature** 

The following diagram shows the terminals, adjusters, and switches on the G32A-EA. 

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Input terminal C2 O −<br>Input terminal C1 +<br>Output terminal (B1) +<br>Input selection slide switches<br>Internal adjuster<br>Output terminal (B2) −<br>O<br>AC power supply terminal (A1)<br>AC power supply terminal (A2)<br>**----- End of picture text -----**<br>


## **Setting the Input Method** 

Select external adjuster, internal adjuster, or control current as the input method using the selection switches as shown in the following table. 

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es Control method Input selection slide switches<br>External adjuster EXT vR<br>INT 4 to 20 mA<br>Internal adjuster<br>(See note 2.)<br>INT 4 to 20 mA<br>Control current<br>EXT vR<br>4 to 20 mA<br>There is no slide switch combination with INT and 4 to 20 mA. INT<br>**----- End of picture text -----**<br>


There is no slide switch combination with INT and 4 to 20 mA. Such combinations would have no current input control for 4 to 20 mA. 

- **Note: 1.** The input selection slide switches are factory-set to internal adjuster input. Change the setting of the switches for the input method required. 

   **2.** When using the internal adjuster, use with the input terminals (C1, C2) in the open state. Internal setting is not possible if there is a Temperature Controller or other device connected to C1 or C2. 

**3** 

**G32A-EA** 

## ■ **Cycle Control Setting Method** 

The output cycle rate can be adjusted using the internal or external adjuster. For current control, refer to the Output Cycle Rate vs. Control Current graph on page 2. 

**Note:** When using the internal adjuster or external adjuster, it is necessary to set the input control method in the way described previously. 

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ee VR setting Output cycle rate (%)<br>la~\ 100%<br>(9%) ! |<br>! |<br>(a 175% |<br>1%) : :<br>|<br>|<br>MO. |<br>(%) |ARG aA<br>(o—>\ 125%<br>|<br>(%)<br>\ |<br>aN 0%<br>0 (-) 100: ee<br>(%)<br>Control cycle: 0.2 s<br>**----- End of picture text -----**<br>


**Note:** The resistance is 50 kΩ at 100% and 0 Ω at 0%. 

## ■ **Output Power Resolution** 

When power is controlled using the Cycle Control Unit, the output resolution (minimum variation value) depends on the half cycle of the power supply frequency and the time depends on the power supply frequency. (SSR with zero cross function) 

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Control cycle Output power resolution<br>50 Hz 60 Hz<br>0.2 s 5% (10 ms) 4.2% (8.3 ms)<br>———<br>Control cycle: 0.2 s<br>50 Hz: 5% (10 ms)<br>60 Hz: 4.2% (8.3 ms)<br>**----- End of picture text -----**<br>


## ■ **Cycle Control Method** 

The power on the load side can be controlled by adjusting the number of cycles within the control cycle of 0.2 s and repeating this control cycle. 

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Electric furnace temperature<br>20 mA<br>G32A-EA 12 mA<br>Current control input 4 mA<br>G32A-EA<br>Output signal<br>Control cycle: 0.2 s<br>**----- End of picture text -----**<br>


**4** 

**G32A-EA** 

## **O eration p** 

## ■ **Application Examples** 

High-precision temperature control can be achieved in combination with the G3PA. 

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Current signal DC,<br>4 to 20 mA<br>G3PA-VD<br>Internal adjuster  G32A-EA<br>10 to 60 A<br>3 Relays max.<br>G32A-E-VR<br>External Adjuster<br>**----- End of picture text -----**<br>


## **1. Control Using Current Input** 

## **3. Control Using Internal Adjuster** 

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Current output<br>NFB Temperature Controller<br>A1<br>G3PA G3PA<br>A2<br>G32A-EA<br>G32A-D al! Hard-wired heaters<br>**----- End of picture text -----**<br>


## **2. Control Using External Adjuster** 

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External resistance<br>NFB<br>A1<br>G3PA G3PA<br>A2<br>ao)<br>G32A-EA<br>‘dal<br>G32A-D Hard-wired heaters<br>**----- End of picture text -----**<br>


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NFB<br>A1<br>G3PA G3PA<br>A2<br>G32A-EA<br>G32A-D Hard-wired heaters<br>ae<br>**----- End of picture text -----**<br>


Applications 1, 2, and 3 each use a different type of input method and so it is necessary to change the settings of the input selection slide switches. Be sure to change the slide switch settings in accordance with the input method on page 3. 

**Note: 1.** For details of input selection slide switch settings, refer to _Setting the Input Method_ . 

**2.** The above examples are for when a G3PA-VD (except 60-A models) is used at 200 VAC. 

**3.** When performing ON/OFF control for example 2 or 3, do not connect output terminals B1 and B2 on the G32A-EA to input terminals A1 and A2 of the SSR as linking terminals, Rather, connect contacts between these terminals for switching. 

The current flow is 20 mA max. at 12 VDC. 

**5** ~~a~~ 

**G32A-EA** 

## ■ **External Adjuster** 

## **G32A-E-VR** 

The external adjuster, its adjuster knob, and its nameplate, all come in a set (G32A-E-VR). 

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External Adjuster<br>(50 kΩ, B Characteristic) When wiring, connect in<br>1 the way shown below.<br>M9P 0.75 7.5±0.4<br>6 0-0.1     dia. 2.8±0.2 dia.<br>20±1 dia. 1±0.2<br>20 min. ®<br>10±1<br>1.5  min. 1.6±0.2<br>20 20 max.<br>9.5±0.5<br>Less than 3 m<br>Mounting Holes<br>7.5±0.4<br>®ii<br>9.5 dia.<br>3 dia.<br>**----- End of picture text -----**<br>


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Note:  Wire the external adjuster at a<br>distance of less than 3 m.<br>**----- End of picture text -----**<br>


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Nameplate<br>44 dia. Note:  When using the external adjuster for input, be sure<br>to set the input selection slide switches accordingly.<br>**----- End of picture text -----**<br>


## **Knob** 

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Filled with<br>white resin<br>**----- End of picture text -----**<br>


**6** 

**G32A-EA** 

## **Dimensions** 

**Note:** All units are in millimeters unless otherwise indicated. 

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G32A-EA-US<br><> CF<br>ae |<br>aie<br>8.6 4.5<br>Six, M3.5 terminal screws i H<br>corey pla<br>Linking terminal +B1<br>Internal  Selection<br>adjuster switch<br>64 100 max. 90±0.3 80<br>Linking terminal −B2<br>Nel eat<br>4.6×5.6 elliptic hole 20 max. 3.5<br>23.7 100 max.<br>Without Terminal Cover With Terminal Cover<br>**----- End of picture text -----**<br>


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Two, 4.5-dia. or M4 holes<br>Mounting Holes<br>Terminal Arrangement/<br>Internal Connection<br>Ke “@! |<br>Cycle control<br>90±0.3<br>i +TT_  36 H<br>**----- End of picture text -----**<br>


## **Safet Precautions y** 

Refer to _Safety Precautions for All Power Controllers_ . 

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. 

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

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

**7** 

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

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2021.11 

**http://www.ia.omron.com/** 

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