TOSHIBA S15 Basic Preset Speed Control
Product Information
Specifications
- Model: S15
- Application Note: 1.3.1
- Control Method: Preset Speed Control via discrete inputs
- Default Preset Speed Values: #1 – 0Hz, #2 – 0Hz
Basic Preset Speed Control
This guide explains how to control the S15 with preset speeds via discrete inputs.
A STEP: Connections
The S15 can be controlled via a preset speed command wired to a discrete input. To illustrate the binary nature of these inputs, only one switch is closed at a time in this example.
Connections for basic preset speed control are shown below:
- Normally open switch that will be used to invoke Preset Speed #1.
- Normally open switch that will be used to invoke Preset Speed #2.
- Normally open switch that will be used for a Forward Run signal.
Check Your Work:
- Use monitor mode to verify the input terminals are activated when the switches are closed.
- Confirm the wiring matches the diagram above.
B STEP: Programming
In this example, program Preset Speed #1 to be 30 Hz and Preset Speed #2 to be 60 Hz.
- Program Preset Speed #1 for 30 Hz.
| Parameter | Description | Default Value | New Value |
|---|---|---|---|
| Sr1 | Preset Speed #1 | 0Hz | 30Hz |
- Program Preset Speed #2 for 60 Hz.
| Parameter | Description | Default Value | New Value |
|---|---|---|---|
| Sr2 | Preset Speed #2 | 0Hz | 60Hz |
Note: Preset speed inputs are binary, and follow the sequence of the table below.
Note: Refer to Section 5.7 in the S15 Instruction Manual (E6582175) for additional information.
Check Your Work:
- Confirm Preset Speed is programmed to the correct frequency.
- By default, all Preset Speeds are 0 Hz.
C STEP: Verification
Follow these steps to verify operation of preset speed commands:
- Close switch 3 to give the drive a forward run signal.
- Close switch 1 or 2. (Only one of these two switches should be closed at any time.)
- The drive should run to the corresponding speed shown in the table below.
| Switch | Function | Display |
|---|---|---|
| 3 | Fwd Run | F highlights in top right corner. |
| 1 | Preset Speed #1 | Output frequency is 30.0 Hz. |
| 2 | Preset Speed #2 | Output frequency is 60.0 Hz. |
Check Your Work:
- Confirm the drive runs when switch 3 and switch 1 or 2 are closed.
- Verify the output frequency.
- Confirm the drive decelerates to a stop when switch 3 is open.
Frequently Asked Questions
How can I confirm if the preset speeds are correctly set?
You can verify the programmed preset speeds by checking the output frequency displayed on the drive. Ensure the frequencies match the values set during programming.
What should I do if the drive does not run to the expected speed?
Double-check the wiring connections and ensure that only one switch is closed at a time as per the instructions. Verify that the preset speeds are correctly programmed and try again.
Documents / Resources
 | TOSHIBA S15 Basic Preset Speed Control [pdf] User Manual S15_App_Note_1.3.1, S15 Basic Preset Speed Control, S15, Basic Preset Speed Control, Speed Control, Control |