How many amps does a CGEM draw?
Posted 15 August 2010 - 12:51 AM
Posted 15 August 2010 - 07:10 AM
Posted 15 August 2010 - 07:38 AM
There can be a surge when the motors start that's much higher than the steady state current, My NS11 take up to 2.5A for a millisec or so as the motors start. I measured it with an oscilloscope so I could see the surge, a normal meter won't show it.
If the PSU can't supply this the voltage drops and this can corrupt the microcontrollers in the mount. This can cause all sorts of strange behaviour, from bad pointing to runaway slews.
2.5A may be enough but a PSU that can give more won't be much more expensive.
Posted 15 August 2010 - 08:28 AM
My favourite power supply for mounts like the CGEM is the Pyramid -9KX.
Posted 15 August 2010 - 09:55 AM
Posted 16 August 2010 - 12:21 AM
Posted 17 August 2010 - 01:12 AM