Sinotimer Tm-630s Manual !!top!!

The Ultimate Guide to the Sinotimer TM-630S Manual: Programming, Troubleshooting, and Hidden Features

If you are reading this, you have likely just purchased (or rediscovered) an Sinotimer TM-630S—one of the most popular multi-functional digital timer relays on the industrial and DIY market. While the device is powerful, compact, and versatile, its user manual is notoriously dense and often lost or damaged.

This article serves as a complete, expanded manual for the Sinotimer TM-630S. Whether you need to set up a delay, cycle a pump, or troubleshoot a flashing error code, you will find the answers here.

Problem 1: The display is blank or shows "Low Battery"

Cause: The internal backup battery is depleted.
Fix: The unit will still work when AC power is applied. To retain programs during power outages, you need to replace the internal lithium battery (usually CR2032). This requires soldering – easier to just buy a new timer.

Example 1: Pump that runs for 10 seconds every 2 minutes (Cycle)

Mode: F-3 (ON then OFF, repeat)
Time base: S for seconds
P1: 010 (10 seconds ON)
P2: 120 (120 seconds OFF – 2 minutes)

4. Operating Modes (Crucial Step)

Once your time and programs are set, you must tell the timer to execute them. sinotimer tm-630s manual

Press the MANUAL / AUTO button repeatedly.
You will see the display cycle through options:
- ON: The device stays permanently ON (ignores the schedule).
- OFF: The device stays permanently OFF (ignores the schedule).
- AUTO: The device follows your programmed schedule.
To run your schedule: Ensure the display shows AUTO.
- Tip: If the current time is within a programmed "ON" period, you must toggle past AUTO to OFF then back to AUTO to activate it immediately.

Key Specifications

Operating Voltage: Typically 110-220V AC (Check your unit; some models are 12-24V DC/VAC)
Power Consumption: ≤5VA
Accuracy: ≤ 0.5 seconds per day (at 25°C)
Time Range: 1 minute to 24 hours (or 1 second to 99 hours depending on mode)
Output Contact: 30A (resistive load) / NO/NC relay output
Working Temperature: -10°C to 55°C
Memory Retention: Up to 10 years (internal lithium battery)

Advanced features & tips

Astro/alarm function: some variants support sunrise/sunset; verify model capability.
Random/off-peak delay: useful for reducing inrush or staggering loads.
Multiple daily programs: group related events into consecutive program slots.
Holiday override: temporarily disable programs for specified dates.
Debounce/safety: add a small delay between rapid toggles to protect mechanical relays.
Use an external surge protector for inductive loads or unstable mains.

List of Typical Modes (17 Functions)

The "mode" refers to how the timer applies the ON/OFF times. You select the mode by pressing PROG and holding the up/down arrows until you see a specific symbol.

Here is the key interpretation:

The most common mode for beginners is Mode 3 – Simple 24-hour repeating timer with one ON time and one OFF time. The Ultimate Guide to the Sinotimer TM-630S Manual:

Example: Turn a light ON at 6:00 PM and OFF at 6:00 AM daily.

Set mode to "24H" (Mode 3).
Program 1ON for 18:00.
Program 1OFF for 06:00 (next day – the timer automatically handles crossover).
Set days to "All" (Mo Tu We Th Fr Sa Su).
Exit programming. Ensure unit is in AUTO.

7. +1H Function

Press +1H when in AUTO mode → the load turns OFF for exactly 1 hour (or ON? check your unit).
Common use: Temporary holiday override. Press again to cancel early.
Some models reverse the behavior; test with a lamp. Cause: The internal backup battery is depleted

Problem 3: The relay makes a clicking sound every minute

Cause: You have set overlapping programs (e.g., Program 1 OFF at 10:00, Program 2 ON at 10:01). The relay is switching rapidly.
Fix: Program a minimum 1-minute gap between ON and OFF events across different program groups.