BAOMAIN TBT7-A1 Multi-Function Time Relay User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the BAOMAIN TBT7-A1 Multi-Function Time Relay. This device is designed for industrial automation and OEM machinery, offering 10 versatile timing functions and a wide voltage range. Please read this manual thoroughly before use to ensure proper and safe operation.

2. Safety Information

• Always disconnect power before installing, wiring, or performing maintenance on the device.
• Installation and wiring should only be performed by qualified personnel in accordance with local electrical codes and regulations.
• Ensure the supply voltage matches the specifications of the relay (AC/DC 12V-240V).
• Do not exceed the maximum current rating of 16A for the relay contacts.
• Protect the device from moisture, dust, and extreme temperatures.
• Verify all connections are secure to prevent loose contacts and potential hazards.

3. Product Features

• Universal Wide Voltage: Supports AC/DC 12V-240V (50/60Hz) power supply.
• 10 Versatile Timing Functions: Includes Delay ON, Delay OFF, Cycle Timer (starting with ON or OFF), Pulse Output, and Latching Relay.
• High Load Capacity: Equipped with a 16A (250VAC/24VDC) relay.
• Wide Time Range: Adjustable from 0.1 seconds to 10 days across 10 scales.
• Compact Design: Slim 1-module (18mm) width for DIN rail mounting.
• LED Indicators: Green LED for Power (Un) and Red LED for Output Relay (R).
• Reliability: Flame-retardant housing and premium components for industrial use.

4. Setup and Installation

4.1. Mounting

The BAOMAIN TBT7-A1 is designed for standard 35mm DIN rail mounting. Simply clip the device onto the DIN rail until it locks securely into place.

4.2. Wiring

Refer to the wiring diagrams below for correct electrical connections. Ensure all wires are properly stripped and securely fastened to the screw terminals.

Terminal Descriptions:

• A1: Power Supply Input (Live/Positive)
• A2: Power Supply Input (Neutral/Negative)
• S: Control Terminal / Trigger Input. Activated by connection to A1 terminal via an external control contact.
• 15: Common Contact for the SPDT (Single-Pole Double-Throw) relay.
• 16: Normally Closed (NC) Contact. Connected to 15 when the relay is de-energized.
• 18: Normally Open (NO) Contact. Connected to 15 when the relay is energized.

Note: The S-A2 terminals can power a load (e.g., relay, lamp, contactor). The load remains powered when the S terminal is closed.

5. Operating Instructions

5.1. Controls and Indicators

• Green LED (Un): Power indicator. Illuminates when the device is powered on.
• Red LED (R): Output Relay indicator. Illuminates when the output relay is energized.
• Top Dial: Selects the time range (e.g., 1s, 10s, 1m, 10m, 1h, 10h, 1d, 10d, ON, OFF).
• Middle Dial: Adjusts the percentage of the selected time range (0-100%).
• Bottom Dial: Selects the operating function mode (A-J).

5.2. Setting Time Range and Percentage

The TBT7-A1 offers a time range from 0.1 seconds to 10 days. This range is divided into 10 selectable scales using the top dial. The middle dial then allows fine adjustment within the selected scale from 0% to 100%.

• Rotate the top dial to select the desired time scale (e.g., 1s, 10s, 1m, 10m, 1h, 10h, 1d, 10d).
• Rotate the middle dial to set the precise time value as a percentage of the selected scale. For example, if '10s' is selected on the top dial and '50%' on the middle dial, the time will be 5 seconds.

5.3. Function Selection and Descriptions

The bottom dial selects one of the 10 operating functions (A-J). Each function defines how the relay operates based on power application and trigger input (S terminal).

Function Modes:

1. A: Delay ON (Power on)
   Upon input voltage (Un) application, timing delay 't' begins. Relay contacts change state after time delay 't' completes. Contacts return to their shelf state when input voltage Un is removed. Trigger switch 'S' is not used in this function.
2. B: Interval (Power on)
   When input voltage (Un) is applied, relay contacts 'R' change state immediately and timing cycle 't' begins. When time delay 't' completes, contacts return to their shelf state. When input voltage Un is removed, contacts will also return to their shelf state. Trigger switch 'S' is not used in this function.
3. C: Repeat Cycle (Starting off)
   When input voltage (Un) is applied, time delay 't' begins. When time delay 't' completes, relay contacts 'R' change state for time delay 't'. This cycle will repeat until input voltage Un is removed. Trigger switch 'S' is not used in this function.
4. D: Repeat Cycle (Starting on)
   When input voltage (Un) is applied, relay contacts 'R' change state immediately and time delay 't' begins. When time delay 't' completes, contacts return to their shelf state for time delay 't'. This cycle will repeat until input voltage Un is removed. Trigger switch 'S' is not used in this function.
5. E: Off Delay (S Break)
   Input voltage Un must be applied continuously. When trigger switch 'S' is closed, relay contacts 'R' change state. When trigger switch 'S' is opened, delay 't' begins. When delay 't' is complete, contacts 'R' return to their shelf state. If trigger switch 'S' is closed before time delay 't' is complete, then time resets. If trigger switch 'S' opens during the delay, it continues to count down. If input voltage Un is removed, relay contacts 'R' return to their shelf state.
6. F: Single Shot
   Upon application of input voltage Un, the relay is ready to accept trigger signal 'S'. Upon application of the trigger signal 'S', the relay contacts 'R' transfer and the preset time 't' begins. During time-out, the trigger signal 'S' is ignored. The relay resets by applying the trigger switch 'S' when the relay is not energized.
7. G: Single Shot Trailing Edge (Non-Retriggerable)
   Upon application of input voltage Un, the relay is ready to accept trigger signal 'S'. Upon application of the trigger signal 'S', the relay contacts 'R' transfer and the preset time 't' begins. At the end of the preset time 't', the relay contacts 'R' return to their normal condition unless the trigger switch 'S' is opened and closed prior to time-out. If trigger switch 'S' is opened during the delay, the delay stops and the relay returns to its shelf state.
8. H: On/Off Delay
   Input voltage Un must be applied continuously. When trigger switch 'S' is closed, time delay 't' begins. When time delay 't' is complete, relay contacts 'R' change state and remain transferred until trigger switch 'S' is opened. If input voltage Un is removed, relay contacts 'R' return to their shelf state.
9. I: Latching relay
   Input voltage Un must be applied continuously. Output changes state with every trigger switch 'S' closure. If input voltage Un is removed, relay contacts 'R' return to their shelf state.
10. J: Pulse generator
    Upon application of input voltage Un, a single output pulse of 0.5 seconds is delivered, and then a time delay 't' begins. Power must be removed and re-applied to repeat pulse. Trigger switch 'S' is not used in this function.

5.4. Product Video Overview

Watch this official video for a visual overview of the BAOMAIN Multi-Function Time Relay, including its features and basic operation.

6. Maintenance

• Keep the device clean and free from dust and debris. Use a dry, soft cloth for cleaning.
• Regularly inspect wiring connections for tightness and signs of wear or damage.
• Ensure adequate ventilation around the device to prevent overheating.
• Do not attempt to open or repair the device yourself. Refer to qualified service personnel for any repairs.

7. Troubleshooting

8. Specifications

9. Warranty and Support

BAOMAIN products are manufactured to high-quality standards. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Baomain website. Keep your purchase receipt for warranty claims.