GEYA GRT6-A/B Series Electronic Delay Time Relay Instruction Manual

1. Introduction

This manual provides detailed instructions for the GEYA GRT6-A/B series electronic delay time relays. The GRT6 series is designed for precise timing applications in various industrial and domestic settings. The GRT6-A model functions as an ON Delay relay, while the GRT6-B model functions as an OFF Delay relay. Both models offer a wide range of voltage support and time settings, making them versatile for different control requirements.

Front view of GEYA GRT6-A1 (ON Delay) and GRT6-B1 (OFF Delay) time relays, highlighting their functions and key specifications. — Figure 1: GEYA GRT6-A1 and GRT6-B1 Delay Time Relays

2. Key Features

GRT6-A: Delay ON Function
GRT6-B: Delay OFF Function
Wide Range Voltage Support: AC/DC24~240V or AC230V
Current Rating: 10A/AC1
Output Contact: 1SPDT or 2SPDT (Single Pole Double Throw)
Time Scale: 0.1 seconds to 10 days, divided into 10 selectable ranges.
Time Setting: Adjustable via a potentiometer.
Status Indication: Relay status indicated by LED.
Mounting: 1 MODULE (18mm width) for DIN rail mounting.

Overview of GRT6 series time relays, illustrating key features such as delay functions, current rating, output contacts, and voltage options. — Figure 2: GRT6 Series Key Features

3. Applications

The GEYA GRT6 series time relays are suitable for a variety of applications where precise timing and control are required. Common uses include:

General time switching tasks.
Controlling pump decay time after heating systems are switched off.
Switching and controlling fans.
Industrial automation fields.
Power system applications.
Integration into household appliances.
Automotive electronics systems.

Diagram illustrating various industries where GEYA GRT6 time relays can be applied, including industrial automation, power systems, household appliances, and automotive electronics. — Figure 3: Application Fields

4. Technical Specifications

Refer to the table below for detailed technical parameters of the GRT6-A/B series.

Table of technical parameters for GRT6-A/B series, including supply terminals, voltage range, burden, power input, time ranges, output, current rating, and dimensions. — Figure 4: Technical Parameters Table

Table 1: Technical Parameters Overview
Parameter	GRT6-A1/B1	GRT6-A2/B2	GRT6-At/Bt
Function	A:delay ON; B:delay OFF	A:delay ON; B:delay OFF	A:delay ON; B:delay OFF
Supply terminals	A1-A2	A1-A2	A1-A2
Voltage range	AC/DC 24-240V (50-60Hz)	AC/DC 24-240V (50-60Hz)	AC/DC 24-240V (50-60Hz)
Burden	AC 0.09-3VA/DC 0.05-1.7W	AC 0.09-3VA/DC 0.05-1.7W	AC 0.09-3VA/DC 0.05-1.7W
Voltage range	AC 230V (50-60Hz)	AC 230V (50-60Hz)	AC 230V (50-60Hz)
Power input	AC max.6VA/1.3W	AC max.6VA/1.3W	AC max.6VA/1.3W
Supply voltage tolerance	-15% +10%	-15% +10%	-15% +10%
Supply indication	green LED	green LED	green LED
Time ranges	0.1s-10days, ON, OFF	0.1s-10days, ON, OFF	0.1s-10days, ON, OFF
Time setting	potentiometer	potentiometer	potentiometer
Time deviation	10%-mechanical setting	10%-mechanical setting	10%-mechanical setting
Repeat accuracy	0.2%-set value stability	0.2%-set value stability	0.2%-set value stability
Temperature coecient	0.05%/°C, at -20°C (0.05%/°F, at 68°F)	0.05%/°C, at -20°C (0.05%/°F, at 68°F)	0.05%/°C, at -20°C (0.05%/°F, at 68°F)
Output	1x SPDT	2x SPDT	1x SPDT (1xSPDT(Ins))
Current rating	10A/AC1	10A/AC1	10A/AC1
Switching voltage	250VAC/24VDC	250VAC/24VDC	250VAC/24VDC
Min.breaking capacity DC	500mW	500mW	500mW
Output indication	red LED	red LED	red LED
Mechanical life	1 x 10⁷	1 x 10⁷	1 x 10⁷
Electrical life (AC1)	1 x 10⁵	1 x 10⁵	1 x 10⁵
Reset time	max 200ms	max 200ms	max 200ms
Operating temperature	-20°C to +55°C (-4°F to 131°F)	-20°C to +55°C (-4°F to 131°F)	-20°C to +55°C (-4°F to 131°F)
Storage temperature	-35°C to +75°C (-22°F to 158°F)	-35°C to +75°C (-22°F to 158°F)	-35°C to +75°C (-22°F to 158°F)
Mounting/DIN rail	DIN rail EN/IEC 60715	DIN rail EN/IEC 60715	DIN rail EN/IEC 60715
Protection degree	IP40 for front panel/IP20 terminals	IP40 for front panel/IP20 terminals	IP40 for front panel/IP20 terminals
Operating position	any	any	any
Overvoltage category	III.	III.	III.
Pollution degree	2	2	2
Max.cable size (mm²)	solid wire max.1x2.5 or 2x1.5/with sleeve max.1x2.5 (AWG 12)	solid wire max.1x2.5 or 2x1.5/with sleeve max.1x2.5 (AWG 12)	solid wire max.1x2.5 or 2x1.5/with sleeve max.1x2.5 (AWG 12)
Tightening torque	0.4Nm	0.4Nm	0.4Nm
Dimensions	90 x 18 x 64mm	90 x 18 x 64mm	90 x 18 x 64mm
Weights	S240-61g, A230-61g	S240-61g, A230-61g	S240-61g, A230-61g
Standards	EN 61812-1, IEC60947-5-1	EN 61812-1, IEC60947-5-1	EN 61812-1, IEC60947-5-1

Dimensional drawing of the GRT6-A1 time relay in millimeters, indicating height, width, and depth. — Figure 5: Dimensions (MM)

5. Setup and Installation

5.1 Mounting

The GRT6 series relays are designed for DIN rail mounting. Ensure the relay is securely clipped onto a standard 35mm DIN rail (EN/IEC 60715). The compact 1 MODULE (18mm) width allows for efficient use of space in control panels.

5.2 Terminal Connections

The relays feature screw terminals for electrical connections. Ensure all connections are tight with a tightening torque of 0.4Nm. Use solid wires with a maximum size of 1x2.5 mm² or 2x1.5 mm² with sleeves (AWG 12).

Detailed view of GRT6-A1 and GRT6-A2 models, showing terminal connections for AC230V and AC/DC24-240V power supplies. — Figure 6: GRT6-A Terminal Configurations

Detailed view of GRT6-B1 and GRT6-B2 models, showing terminal connections for AC230V and AC/DC24-240V power supplies. — Figure 7: GRT6-B Terminal Configurations

5.3 Wiring Diagrams

Follow the specific wiring diagrams for your GRT6-A (ON Delay) or GRT6-B (OFF Delay) model. Connect the Line (L) and Neutral (N) to the appropriate supply terminals (A1-A2) and the load to the output contacts (15, 16, 18 for 1SPDT; 25, 26, 28 for 2SPDT).

Wiring diagram for GEYA GRT6-A1 (ON Delay) time relay, showing connections for Line (L), Neutral (N), and Load. — Figure 8: GRT6-A Wiring Diagram

Wiring diagram for GEYA GRT6-B1 (OFF Delay) time relay, showing connections for Line (L), Neutral (N), and Load. — Figure 9: GRT6-B Wiring Diagram

6. Operation

6.1 Function Diagrams

The GRT6 series offers various timing functions, including simple ON Delay (A) and OFF Delay (B), as well as variations with instantaneous contacts (At, Bt). The diagrams below illustrate the timing behavior for each function.

Function diagrams for GRT6-A (Delay ON) and GRT6-B (Delay OFF) modes, including instantaneous contact variations, and instructions for time setting using potentiometers. — Figure 10: Function Diagrams and Time Setting

6.2 Time Setting

Time setting is achieved using two potentiometers (knobs) on the front panel:

Knob 1 (Gear Setting): Selects the time range (e.g., 's' for seconds, 'm' for minutes, 'h' for hours, 'd' for days). It also includes 'ON' for relay open (15-18/25-28 closed) and 'OFF' for relay closed (15-18/25-28 open) for continuous operation modes.
Knob 2 (Fine Adjustment): Provides fine adjustment of the delay time, from 10% to 100% within the selected range.

Calculation Example:

To set 5 seconds: Set Knob 1 to '1-10s', and Knob 2 to 50%. Delay time = 10s * 50% = 5s.
To set 8 minutes: Set Knob 1 to '1-10min', and Knob 2 to 80%. Delay time = 10m * 80% = 8m.

6.3 LED Indicators

Green LED (Un): Indicates the supply voltage status.
Red LED (R): Indicates the output relay status.

7. Maintenance

The GEYA GRT6 series time relays are designed for reliable, long-term operation with minimal maintenance. However, regular checks can help ensure optimal performance:

Cleaning: Keep the relay free from dust and debris. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
Connections: Periodically check all terminal connections to ensure they remain tight and secure. Loose connections can lead to intermittent operation or overheating.
Environment: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent damage to the internal components.
Visual Inspection: Inspect the relay for any signs of physical damage, discoloration, or unusual odors, which may indicate a problem.

8. Troubleshooting

If you encounter issues with your GRT6 series time relay, consider the following common troubleshooting steps:

No Power Indication (Green LED Off):
- Check the supply voltage at terminals A1-A2.
- Ensure the voltage is within the specified range (AC/DC24~240V or AC230V).
- Verify power supply connections are secure.
Relay Not Activating/Deactivating (Red LED Not Changing Status):
- Confirm the time setting is correctly configured for the desired delay.
- Check the load connections and ensure the load is functioning correctly.
- Verify the output contact type (1SPDT or 2SPDT) matches your wiring.
- For GRT6-A (ON Delay), ensure the input signal is present for the duration of the delay.
- For GRT6-B (OFF Delay), ensure the input signal is removed to initiate the delay.
Inaccurate Timing:
- Re-check the potentiometer settings for both the gear and fine adjustment knobs.
- Ensure the operating temperature is within the specified range, as extreme temperatures can affect timing accuracy.
Overheating:
- Ensure the current drawn by the load does not exceed the relay's rated current (10A/AC1).
- Verify proper ventilation around the relay.

If the problem persists after these checks, contact customer support for further assistance.

9. User Tips

When setting the time, start with the coarse adjustment (Knob 1) to select the appropriate range, then use the fine adjustment (Knob 2) for precise timing.
Always double-check your wiring against the provided diagrams before applying power to prevent damage to the relay or connected equipment.
Consider the application's specific needs when choosing between 1SPDT and 2SPDT output contacts.

10. Warranty and Support

GEYA products are manufactured to high-quality standards and are certified according to industry standards such as CE, RoHS, and WEEE. For specific warranty information, technical support, or service inquiries, please refer to the official GEYA website or contact your authorized distributor. Keep your purchase receipt for warranty claims.

GEYA company information, including establishment year, annual turnover, headquarters, and product certifications (CE, CB, SAA, ISO, UK CA, RoHS). — Figure 11: GEYA Company Information and Certifications

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GEYA GRT6-A/B ON/OFF DELAY TIME RELAY

GEYA GRT6-A/B Series Electronic Delay Time Relay