Trace reply: Charger drops offline [RE-wrenches]

[Chuck Heath, SunPower]

Here's the reply I received from Trace tech support. I won't have a 
chance to try their suggestions for a few days, but will report back 
after I do.

Thanks to all wrenches who offered help and suggestions.

Cordially, Chuck
 
-=-=-
Chuck,
Put gen input to AC1, select "off" in gen menu and manually start 
generator.
If results are the same, the there is a problem with the generator voltage
or frequency. Rarely do both AC1 and AC2 fail at the same time. We can 
take
a look at the inverter here to be sure but if no problems are found, there
will be a $60. bench fee.

Bryan A. Dybvig
Xantrex Trace Engineering
Product Support Technician
bdybvig at traceengineering.com
(360) 435-8826 EXT. 2203

> -----Original Message-----
> From:	Chuck Heath [SMTP:sunpwr at jps.net]
> Sent:	Monday, August 07, 2000 11:20 AM
> To:	Bryan
> Subject:	Charger drops offline
> 
> This is a repeat of the email sent 7/12/00 for which I'm still seeking 
> answers, or an RMA to return the unit. Please confirm receipt of this 
> message, since Bryan left a telephone message saying he never received 
> the original email message.
> 
> Client reported charger of a SW 4024 (v. 4.01, s/n W4649) not working 
> properly. Site visit confirmed this. Only charging source is a 
> propane-fueled Kohler 12 RY generator, re-wired for 120 VAC (12 kW before 
> altitude derating). Battery is type 85-25 two-volt cells, 1270 AH @ 20 
> hr. discharge rate. System installed in February, 1997.
> 
> Symptoms: Trace sees AC-2 Good from Kohler, goes into Bulk charging for 
> only 30-35 seconds, then drops out of Bulk and back to inverting for 10 
> seconds until cycle repeats. Kohler voltage is a steady 117-118 VAC 
> whether under load or not. Trace reports Kohler frequency as rock-solid 
> 60 cps.
> 
> After nearly 6 hours generator runtime, was able to raise battery voltage 
> from 26.8 to 27.2 VDC - not nearly enough. At-rest battery voltage was 
> 24.9 VDC. Set Gen Amps AC (Menu #11) and Set Max Charge Amps AC (Menu 
> #10) are both at 35 Amps AC. Lower values did not change results, nor did 
> changing Set Float Voltage (27.1 VDC) to match Set Bulk Voltage setting 
> (Menu #10) of 29.8 VDC. Inverter/Charger AC Amps while charging was 30-32
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