SD49425XB-HNR PTZ problems

[DeanD]

Hi All

I just installed this new out of the box today andI can zoom, tilt up and down, but the second I try to go left or right the image freezes and I loose connection.

After it loses connection, regardless of where the camera is pointed it then turns to its default position and default zoom. After about 1 minute connection resumes.

I’ve reached out to Andy for help as well incase it is hardware problem but figured I might be missing something simple that the forums could help with.

thanks

 

[wittaj]

Sounds like a power problem.

Are you using a POE+ injector or a POE+ switch?

 

[Futaba]

Your POE injector or POE switch is not powerful enough. The cam needs a powerful POE injector. I use this one for my 49225. It can output 30W.

Amazon.com: BV-Tech Gigabit Power Over Ethernet PoE+ Injector | 30W | 802.3 af/at | Plug & Play | Auto Power Detection | up to 100 Meters (325 Feet) : Everything Else

Buy BV-Tech Gigabit Power Over Ethernet PoE+ Injector | 30W | 802.3 af/at | Plug & Play | Auto Power Detection | up to 100 Meters (325 Feet): Everything Else - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

smile.amazon.com

 

[DeanD]

I’m using a net gear JGS524PE rated at 100W. However I’m using all 12 channels so I presume this definitely isn’t enough for this cam.

JGS524PE | NETGEAR Support

JGS524PE | NETGEAR Support

www.netgear.com

 

[wittaj]

Yeah you need a POE+. That switch may only be rated at 15w and/or using all ports you have exceeded it's total capacity even if it was capable on a per channel basis. 100w for 12 ports is fairly low.

You can try unplugging a few cameras and see, but I suspect you need to add a Poe+ injector or POE+ switch.

 

[DeanD]

Thanks to both for your replies, much appreciated. I figured it was something simple enough but never considered power to be the problem.

I will pick a injector up - does it matter if the injector is rated for more than 30W (i see some are rated 30/60/90, or are they managed?)

Also I presume I would then use a non POE port on the switch and route through the injector only.

 

[wittaj]

As long as it is at least 30w it should then only put out what is needed.

It does not need to be managed and it can go into any available port on the switch (other than the uplink).. A cheap $20ish or so Poe+ injector is fine.

 

[DeanD]

Thanks for this everyone. I picked up a 30W and it works great. Next is to configure the auto tracking… wish me luck.

 

[wittaj]

Just do not update the firmware or you will lose autotrack capabilities as Dahua stripped it from future firmwares!

 

[Rockie]

I've just upgraded the firmware, damn! Funny thing is that if I visit the admin page with my phone, I still see AI tab.
Does anybody have an older firmware for SD49425XB-HNR?

Also, I have the same problem with the same camera.
My switch is cisco sf300-48p with PoE+ 375W Poe

I've fixed the problem by using the Cisco admin area and setting for that port PoE from Normal to Critical.

Nominal Power:	375 W
Consumed Power:	90 W
Available Power:	285 W

 

[fergenheimer]

I think this is the most recent firmware with auto tracking.

Dahua SD49225XA-HNR Auto Tracking Enabled Firmware.

The T.200310 T is tesing version, anyway, guys bought the 0312 verion from us has good working. No need to down again to 0310. Normally will have a official version after T firmware released

www.ipcamtalk.com

 

[gsk.archie]

Hello everyone! Does anyone have problems with positioning when using this device? The zero position is shifted and all the saved presets are with it, it's very annoying. In some camera models, there is a "set zero" option in the PTZ settings for this. I didn't find anything like that here.

 

[guykuo]

The PTZ mechanism does not have an absolute position encoder. Instead the system does an initial calibration for horizontal and vertical “zero” when PTZ boots. From that point on position is tracked based on stepper motor counts. If anything knocks the camera position or if a motion is hindered mechanically, the counter no longer matches actual position. You then get a shift like you are seeing.

You can either reboot the entire camera or restart the ptz system to recal the zero. It is best to do a restart before storing major PTZ positions so they are based on reproducible baseline position

 

[bigredfish]

^^^^
Yup

 

[guykuo]

Here is what the vertical optical sensor and interruptor look like. When PTZ boots, the controller rotates until the interruptor blocks light across the optical sensor. That is how the PTZ board finds the motion limit. Horizontal direction has analogous optical sensor and interruptor.

I sometimes modify the interruptor to enable a bit more upward vertical capability in my PTZ's.

 

[gsk.archie]

It is best to do a restart before storing major PTZ positions so they are based on reproducible baseline position

That's what I did.
Moreover, the reboot is performed automatically once every three days.
It looks like the zero position is no longer where it was originally. How can this happen? An optical sensor glitch?

 

[guykuo]

It this a newly installed unit? Mine are almost always bumped out of position (moved manually) as I adjust the mounting. SOP has become, reboot post install to establish a good baseline position zero.

 

[gsk.archie]

The camera was installed about 3 years ago and this is the second time when the position is lost. After the first time, I figured out to restart before installing presets.

 

[gsk.archie]

It seems that the problem was in the strong wind, which made the camera take the wrong position immediately after the restart.
Thanks to everyone who came to help.