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F E A T U R E S
Crystal Controlled Time Base
Proper frequency regulation is assured with the use of a crystal. Battery voltage and power have no
effect on the inverter' s operating frequency.
Stand-by Battery Charger
The Stand-by feature includes an internal battery charger and automatic transfer relay. This allows
the unit to operate as a battery charger or an inverter (but not at the same time). An external source
of AC power (i.e. shore power or generator) must be supplied to the inverter' s AC input to allow it to
operate as a battery charger. When the unit is operating as a charger its AC output is powered by
the external AC source. See the Three-Stage Battery Charger section beginning on Page 52 for an
in-depth description of this charger.
Transfer Switching Speed
While this inverter is not designed specifically to operate as an un-interruptable power supply (UPS)
system, its transfer time is normally fast enough to hold up computers in the event of a power outage.
The transfer time is a maximum of 32 milliseconds (two 60Hz AC cycles). Success as UPS will vary
with computer models, and cannot be guaranteed. If this is an issue, buy a small, dedicated UPS for
the specific application.
Automatic Inverter to Charger Transition
The inverter automatically becomes a battery charger whenever AC power is supplied to its AC
inputs. There is a minimum 20-second time delay from the time the inverter senses that AC is
present at its input to when the transfer is made. This delay is built in to provide time for a generator
to spin-up to a stable voltage and avoid relay chattering. The inverter' s AC input is internally
connected to the inverter' s AC output while in the battery charger mode. The maximum power that
can be handled by the inverter' s internal wiring and transfer relay is 30 amps.
Trace Engineering Co. Inc.
Tel (360) 435-8826
Part Number 3179
5916 195
Street, NE
Fax (360) 435-2229
Effective August 6, 1998
th
Arlington, WA 98223 USA
www.traceengineering.com
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Need help?
Do you have a question about the Legend and is the answer not in the manual?
Questions and answers
how do you clear error light and alarm from remote control
To clear the error light and alarm on the Trace Engineering Legend remote control, follow these steps:
1. Identify the Error – Check the LED indicators on the remote control to determine the cause of the alarm (e.g., low battery voltage, high temperature, etc.).
2. Resolve the Issue – Address the underlying problem based on the error type:
- If the battery voltage is too low or high, check and adjust the battery condition.
- If there is a high-temperature warning, allow the unit to cool down.
- Ensure all connections (battery and AC output) are secure and clean.
3. Reset the Inverter – Turn the inverter off, wait a few seconds, and turn it back on.
4. Monitor the System – Observe the LED indicators to confirm the error is cleared.
If the issue persists, further troubleshooting may be required.
This answer is automatically generated