FAQ
TL;DR: Extend a too-short ROB‑01 pulse using a time relay or a relay plus 1000–2000 µF; "You can use an additional time relay." This FAQ helps ROB‑01 users drive gate controllers that expect longer trigger times. [Elektroda, nikusert, post #18264167]
Why it matters: Without extending the pulse, the gate may ignore the trigger and fail to open.
Quick Facts
- ROB‑01 output pulse is 0.5 s (as labeled and manufacturer‑confirmed). [Elektroda, Umiar, post #18264400]
- Wiśniowski ST‑01 expects over 1 s to trigger; 0.5 s may be ignored. [Elektroda, Umiar, post #18263972]
- Workarounds include a time relay (e.g., PCU‑510) or relay + 1000–2000 µF capacitor. [Elektroda, nikusert, post #18264167]
- Cheapest route can be returning ROB‑01 and choosing another radio. [Elektroda, sosarek, post #18264174]
- IMPULS sells a small “electric door opener time extender” with relay, 12–24 V DC input. [Elektroda, CYRUS2, post #18264212]
What’s causing the mismatch between ROB‑01 and ST‑01 timing?
ROB‑01 closes its contacts for about 0.5 s. ST‑01 needs a pulse longer than 1 s. The gate may not react to a 0.5 s closure. That timing mismatch is the root cause of the issue. [Elektroda, Umiar, post #18263972]
Can I extend the ROB‑01 pulse without changing radios?
Yes. Add a time relay to stretch the trigger or use a small relay with an electrolytic capacitor across its coil. Typical capacitor values are 1000–2000 µF. “You can use an additional time relay.” This preserves your current remotes and receiver. [Elektroda, nikusert, post #18264167]
What is a “time relay – delayed shutdown”?
It is a timer that holds its output closed after a short input, then opens after the set delay. It effectively converts a brief pulse into a longer contact closure suitable for the gate’s trigger input. “See under ‘time relay - delayed shutdown’.” [Elektroda, elkard, post #18264081]
How do I wire a time extender between ROB‑01 and the gate?
Use a pulse‑to‑delay relay module:
- Connect the module’s white signal wire to the ROB‑01 output.
- Power the module according to its rating.
- Identify C and NO with a meter, then wire C and NO to the gate’s trigger input.
Set the hold time on the module to exceed 1 s. [Elektroda, sosarek, post #18264484]
Will a 0.5 s pulse drive a time relay reliably?
Often yes, but confirm the module’s minimum trigger time. Some need a longer input. “If it can be driven by such a short pulse then it should work.” Check module specs before ordering to avoid misfires. [Elektroda, sosarek, post #18264571]
Where do I get a compact extender module for this?
IMPULS (Warsaw) sells an electric door opener time extender with relay. It may not be listed online. “Call them and they’ll send it to you.” A referenced board size was 54 × 27 mm, which fits tight enclosures. [Elektroda, CYRUS2, post #18264835]
What power does the IMPULS extender need?
The board is powered from 12–24 V DC. That makes it easy to integrate with most low‑voltage gate control systems and accessories. It includes a relay for isolated switching. [Elektroda, CYRUS2, post #18264212]
Is swapping to a different radio cheaper than adding a time relay?
Yes, returning the ROB‑01 and buying another radio can cost less than adding a timer. As one pro put it, “It will be cheaper to return the Zamel and buy another radio.” Factor in re‑pairing remotes if you switch. [Elektroda, sosarek, post #18264174]
How do I extend hold time with a relay and capacitor?
Drive a small relay from the ROB‑01 and place an electrolytic capacitor (about 1000–2000 µF) in parallel with the coil. When the pulse ends, the capacitor discharges through the coil, holding contacts briefly closed. Increase capacitance for more hold time. Observe polarity on electrolytics. [Elektroda, nikusert, post #18264167]
I found a module with a white wire and C/NO/NC—how do I connect it?
Feed the white wire with the ROB‑01 pulse. Power the module per its rating. Identify C and NO using a meter, then wire those two to the gate’s trigger input. This creates the extended contact closure the controller needs. [Elektroda, sosarek, post #18264484]
Could I have miswired the ROB‑01 if the gate doesn’t react?
Yes. The output runtime isn’t obvious in some specs, so wiring mistakes happen. Verify the correct terminals and that the controller’s trigger input expects a dry contact. Recheck all connections before adding hardware. [Elektroda, sosarek, post #18263978]
How do I verify the 0.5 s pulse spec on ROB‑01?
Check the packaging label. The 0.5 s output duration is printed on the box and was confirmed with the manufacturer. It may not appear on their website, so the box is the authoritative reference here. [Elektroda, Umiar, post #18264400]
Will the seller include connection instructions for third‑party timer modules?
Not always. Some sellers do not include manuals with these small timer boards. Ask the seller before purchase, or be prepared to identify terminals with a meter. [Elektroda, Umiar, post #18264457]
I already use ROB‑01 elsewhere—why avoid switching radios?
Switching radios can force buying multiple new receivers and a matching transmitter. Staying with ROB‑01 and adding a timer preserves your existing setup and keys. That avoids re‑pairing and additional hardware costs. [Elektroda, Umiar, post #18263982]
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