> For the complete documentation index, see [llms.txt](https://docs.mathewscompany.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mathewscompany.com/dryer-operations/dryer-operations/operating-procedures/vfd-parameters/modular-towers-380-575v.md).

# Modular Towers (380/575V)

## Applicable Models

* 10' Modular Tower Models (10530 - 101375)
* 12' Modular Tower Models (12-20-100 - 12-28-150)

The variable frequency drive controls speed of the sweep arms for all tower dryers. The communication from the HMI to the PLC then correlates to the variable frequency drive. It is important to note that some of the parameters listed below will vary such as voltage, amperage and motor speed. These values should match the motor name plate.

{% hint style="info" %}
Dip switches must both be set to ON for SIEMENS S7-1200.
{% endhint %}

{% hint style="info" %}
If programmed by hand, upload to panel, then download full set to drive.
{% endhint %}

## Applicable Voltages

* 380V/3ph/50Hz
* 575V/3ph/60Hz

## Parameters

The following parameters apply to the dryer model(s) and voltage(s) as shown.

### Group 99 Start Up Data

{% hint style="warning" %} <mark style="color:orange;">These parameters depend on machine voltage</mark>
{% endhint %}

| Parameter                               | Description                                              | MC Setting                                                                                                             | Factory Default                                |
| --------------------------------------- | -------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------- |
| 9901                                    | Language                                                 | English                                                                                                                | English                                        |
| 9902                                    | Applied Macro                                            | ABB Standard                                                                                                           | None                                           |
| <mark style="color:orange;">9904</mark> | <mark style="color:orange;">Motor Control Mode</mark>    | <p><mark style="color:orange;">Scalar-Freq (380V)</mark><br><mark style="color:orange;">Vector-Speed (575V)</mark></p> | <mark style="color:orange;">Scalar-Freq</mark> |
| <mark style="color:orange;">9905</mark> | <mark style="color:orange;">Motor Nominal Voltage</mark> | <p><mark style="color:orange;">380 V (380V)</mark><br><mark style="color:orange;">575 V (575V)</mark></p>              | <mark style="color:orange;">NA</mark>          |
| <mark style="color:orange;">9906</mark> | <mark style="color:orange;">Motor Nominal Current</mark> | <p><mark style="color:orange;">8 A (380V)</mark><br><mark style="color:orange;">5.2 A (575V)</mark></p>                | <mark style="color:orange;">NA</mark>          |
| <mark style="color:orange;">9907</mark> | <mark style="color:orange;">Motor Nominal Freq</mark>    | <p><mark style="color:orange;">50 Hz (380V)</mark><br><mark style="color:orange;">60 Hz (575V)</mark></p>              | <mark style="color:orange;">60.0</mark>        |
| <mark style="color:orange;">9908</mark> | <mark style="color:orange;">Motor Nominal Speed</mark>   | <p><mark style="color:orange;">1435 RPM (380V)</mark><br><mark style="color:orange;">1760 RPM (575V)</mark></p>        | <mark style="color:orange;">1710</mark>        |
| 9909                                    | Motor Nominal Power                                      | 5 HP                                                                                                                   | 3 HP                                           |

### Group 10 Start / Stop / Direction

| Parameter | Description   | MC Setting | Factory Default |
| --------- | ------------- | ---------- | --------------- |
| 1001      | Ext 1 Command | Dl1        | Dl1,2           |
| 1003      | Direction     | Forward    | Request         |

### Group 11 Reference Select

| Parameter                               | Description                                            | MC Setting                                                                                                   | Factory Default                          |
| --------------------------------------- | ------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------ | ---------------------------------------- |
| <mark style="color:orange;">1104</mark> | <mark style="color:orange;">Reference 1 Minimum</mark> | <p><mark style="color:orange;">0 Hz (380V)</mark><br><mark style="color:orange;">0 rpm (575V)</mark></p>     | <mark style="color:orange;">0 Hz</mark>  |
| <mark style="color:orange;">1105</mark> | <mark style="color:orange;">Reference 1 Maximum</mark> | <p><mark style="color:orange;">60 Hz (380V)</mark><br><mark style="color:orange;">1760 rpm (575V)</mark></p> | <mark style="color:orange;">60 Hz</mark> |

### Group 12 Constant Speeds

| Parameter | Description           | MC Setting | Factory Default |
| --------- | --------------------- | ---------- | --------------- |
| 1201      | Constant Speed Select | Dl4,5      | Dl3,4           |

### Group 14 Relay Outputs

| Parameter | Description    | MC Setting | Factory Default |
| --------- | -------------- | ---------- | --------------- |
| 1407      | RO 2 Off Delay | 30 Sec     | 0 Sec           |

### Group 15 Analogue Outputs

| Parameter | Description        | MC Setting | Factory Default |
| --------- | ------------------ | ---------- | --------------- |
| 1501      | A01 Content Select | Ext Ref 1  | Output Freq     |

### Group 16 System Controls

| Parameter | Description | MC Setting | Factory Default |
| --------- | ----------- | ---------- | --------------- |
| 1601      | Run Enable  | Dl3        | NOT SEL         |

### Group 20 Limits

{% hint style="warning" %} <mark style="color:orange;">These parameters depend on machine voltage</mark>
{% endhint %}

| Parameter                               | Description                                      | MC Setting                                                                                                   | Factory Default                            |
| --------------------------------------- | ------------------------------------------------ | ------------------------------------------------------------------------------------------------------------ | ------------------------------------------ |
| <mark style="color:orange;">2001</mark> | <mark style="color:orange;">Minimum Speed</mark> | <p><mark style="color:orange;">0 Hz (380V)</mark><br><mark style="color:orange;">0 rpm (575V)</mark></p>     | <mark style="color:orange;">0 Hz</mark>    |
| <mark style="color:orange;">2002</mark> | <mark style="color:orange;">Maximum Speed</mark> | <p><mark style="color:orange;">60 Hz (380V)</mark><br><mark style="color:orange;">1760 rpm (575V)</mark></p> | <mark style="color:orange;">60 Hz</mark>   |
| <mark style="color:orange;">2003</mark> | <mark style="color:orange;">Max Current</mark>   | <p><mark style="color:orange;">9.2 A (380V)</mark><br><mark style="color:orange;">6.5 A (575V)</mark></p>    | <mark style="color:orange;">8.5 A</mark>   |
| 2007                                    | Minimum Freq                                     | 0 Hz                                                                                                         | 0.0 Hz                                     |
| <mark style="color:orange;">2008</mark> | <mark style="color:orange;">Maximum Freq</mark>  | <p><mark style="color:orange;">60 Hz (380V)</mark><br><mark style="color:orange;">1760 rpm (575V)</mark></p> | <mark style="color:orange;">60.0 Hz</mark> |

### Group 34 Panel Display

| Parameter | Description         | MC Setting   | Factory Default |
| --------- | ------------------- | ------------ | --------------- |
| 3415      | Signal 3 Parameters | Dl1-3 Status | Torque          |


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