Toshiba S15 Application Note 1.3.1: Basic Preset Speed Control
How to control the S15 with preset speeds via discrete inputs.
Estimated Time: 10 Minutes | Level: 1 | Prerequisite: S15 Application Note 1.1.1 Navigating Menus & Parameters
STEP A: 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:
- 1. Normally open switch that will be used to invoke Preset Speed #1.
- 2. Normally open switch that will be used to invoke Preset Speed #2.
- 3. Normally open switch that will be used for a Forward Run signal.
Wiring Diagram Description: The diagram illustrates connections for SW1 (SOURCE) and SW2 (SINK). SW1 is connected to PLC terminals like FLA, FLB, FLC, FY, FC. SW2 is connected to terminals VIB, VIA, VIB, CC, PTC, S4, S3, F, VIC. Common connections are shown for discrete inputs S1, S2, S3, and RES. This setup allows for binary selection of preset speeds and run signals using normally open switches.
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. ✔️
STEP B: 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.
Preset-speed logic input signal example: Slide switch SW1 = SINK side. O: ON - -: OFF (Speed commands other than preset-speed commands are valid when all are OFF)
| Preset-speed | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1-CC | O | ||||||||||||||
| S2-CC | O | ||||||||||||||
| S3-CC | O | ||||||||||||||
| RES-CC | O |
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. ✔️
STEP C: 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 10.0 Hz. |
| 2 | Preset Speed #2 | Output frequency is 30.0 Hz. |
Drive Display Description: A control panel display shows "60.0" Hz with the "RUN" indicator lit. Buttons labeled "RUN", "STOP", "EASY", and "MODE" are visible.
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. ✔️
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