CLASSIC CHARGE CONTROLLER

124 - It is night, why does my Classic show voltage on the input?
127 - Why is ENDAMPS not triggering at my ENDAMPS setting?
133 - GRID-TIED WITH BATTERY BACKUP CAN'T GET THE CLASSIC TO SELL POWER
135 - How do I test FOLLOW-ME?
161 - Why are my Classics not sharing the work when networked with Follow-Me?
162 - Why did my Classic KWh Production RESET during the day...
169 - How does MidNite know I over-voltaged my controller?
220 - How do I perform a Software Factory Restore? (VMM =Vulcan Mind Meld) What is a VMM?
221 - How do I perform a HARDWARE factory Restore? i.e. Jumper removal
222 - Classic will not power on, no fans and no sign of start up, what do I do?
223 - Classic MNGP (display screen) is blank, but the classic is on, Why?
224 - Classic MNGP (display screen) says "RESTING" but the sun is out, Why?
225 - My classic switches from Resting and Bulk MPPT repeatedly, but is producing 0 WATTS -Why??
226 - Classic MNGP (display screen) is showing all 0's and/or GOT COMM -Why?
227 - Classic MNGP (display screen) says "MODE IS OFF" -Why?
228 - Classic MNGP (display screen) is Fuzzy or has odd characters, Why?
229 - Classic MNGP (display screen) Firmware update issues, Why will it not update?
230 - Classic MNGP (display screen) says "OCP OFF" -Why?
231 - Classic MNGP (display screen) says "OCP" -Why?
232 - Classic MNGP (display screen) says "ARC FAULT" and is Loud/Beeping - Why?
233 - Classic MNGP (display screen) says "HYPER VOC" -Why?
234 - Classic MNGP (display screen) says "Battery Over V" -why?
235 - Classic MNGP (display screen) says "SET DATE AND TIME" -Why?
236 - Classic MNGP (display screen) is White/Dark or hard to read, Why?
240 - What is the PASSWORD for the classic?
241 - Why do the FANS run all the time, no matter what the classic is doing?
242 - How can I verify that the FANS work on the Classic?
249 - Why does my Classic HYPER VOC -PV IN raise up over Voltage on its own?
256 - My Classic PV IN -IN breaker is OFF or it is night, Why does the classic show voltage?
278 - FANS seem too loud
279 - Classic goes to ABSORB at too low or too high of a voltage
280 - Classic goes to FLOAT too early
281 - Classic appears to be "singing" at a high pitch or whine that varies...
283 - I mounted my MNGP remotely and now it will NOT power up or it blinks and still will NOT power up.
291 - What is a GOT COMM message?
292 - My Classic makes a Clicking sound, Why?
293 - My Classic talks to me, makes siren sounds or comical phrases, Why?
Print
FAQ #: 233
LINKS
Q: Classic MNGP (display screen) says "HYPER VOC" -Why?
A:First, what is Hyper VOC? Hyper VOC refers to the non-operative VOC safety zone over and above the maximum input voltage. Your classic charge controller has this safety feature (shut off) to prevent damage to your system. This indicates that the input voltage has exceeded the operational voltage of the Classic. If this is happening now and then on rare occasions when it is really cold, then it is normal. If this is happening all the time this indicates the PV array was wired for too high a voltage. Contact your solar installer. Prevention is key to this, please also feel free to use our String sizing tool on our website to help calculate this in your system! Notes - see below for our classic charge controllers range of on operational Hyper VOC ranges at 12Volt battery bank CLASSIC 250 over voltage is at 262Volts CLASSIC 200 over voltage is at 212Volts CLASSIC 150 over voltage is at 162Volts at 24Volt battery bank CLASSIC 250 over voltage at 274Volts CLASSIC 200 over voltage at 224Volts CLASSIC 150 over voltage at 174Volts at 48Volt battery bank CLASSIC 250 over voltage at 298Volts CLASSIC 200 over voltage at 248Volts CLASSIC 150 over voltage at 198Volts