Rockwell Automation 1608N MiniDySC User Manual, 12-50 Amp - Manual (Page 15)

Rockwell Automation Publication 1608N-UM002B-EN-P - May 2014 15
Chapter
2
Operation
The MiniDySC is fully automatic and requires no user intervention for normal
operation.
Applying Power 1. Before applying power to the MiniDySC, ensure that all input/output
wiring including grounding has been completed and that the wiring access
cover is on and screwed down.
2. The load should be connected prior to performing system checks.
3. Apply power, note that the green “Normal” LED will be illuminated.
4. Verify that the output (load) voltage is present and within nominal rating.
5. During normal operation the green LED will remain on.
NOTICE: Cycling input power in the sequence OFF--ON--OFF--ON within a one minute period will
cause a "Inverter Limit Cycle Timeout" alarm. In such case, the red LED will blink and sag
correction will be inhibited for one minute (the condition will automatically reset after one
minute).
Alarm LED Flash Sequence The MiniDySC continuously monitors its condition to help ensure reliable
operation. Status is provided by two front panel indicators, a green Normal LED
and a red Alarm LED. The green Normal LED will be lighted under normal
operating conditions. Events that may affect the ability of the MiniDySC to
protect the load will activate the Alarm LED. Conditions that the user can
correct, such as an overload condition, will be indicated by an encoded series of
red LED flashes. The flash code is repeated after a two second pause for as long as
the condition persists. User correctable Alarm conditions are listed in
Table 4 .
For any other Alarm code, or a constant series of rapid flashing, consult
Rockwell Automation Technical Support.
Table 4 - Alarm LED Flash Descriptions
Alarm Name Number of
Flashes
Alarm Description Alarm Resolution
Inverter Run Time
out
3
DySC inverter had a total cumulative runtime of more than rated. No action is needed
Inverter Limit Cycle
Timeout
Power was re-applied more than once within a 58 second period. No action is needed
Overload
4
Inverter inhibited because load current exceeded maximum rating. Reduce the load
Static Switch Over -
Temperature
Static switch heatsink temperature was greater than maximum rating.
• Verify ambient temperature is within specification
• Check for damaged fans
• Check for dirty or obstructed air vents.
DC Bus
Over-Voltage
5 Positive or negative half of DC bus voltage exceeded maximum rating.
• Verify line voltage is within ratings.
• Verify proper DySC application
• Call Service