Rockwell Automation SB3000 Configuration and Programming - Manual (Page 50)

3-32 SB3000 Drive Configuration and Programming
Drive Warning Register (Continued) 203/1203
Power Module Overload Warning Bit 9
The Power Module Overload Warning bit is
set if the continuous current rating of the
Rectifier is exceeded for a period of
approximately 5 minutes and does not
decrease and maintain the continuous rating
for at least 45 minutes. Hex Value: 0200H
Sug. Var. Name: WRN_OL@
Access: Read only
UDC Error Code: N/A
LED: N/A
Note that when operating at 4 KHz, SB3000 Synchronous Rectifiers have a
continuous rating and an overload rating. If the overload rating is reached and
maintained for approximately 5 minutes, the current must decrease to the
continuous rating level for a minimum of 45 minutes to avoid this warning.
Power Lost Warning Bit 10
The Power Lost Warning bit is set to indicate
that the power dip ride-through feature of
the SB3000 has been enabled. This will
occur if the PMI Processor detects that the
AC input voltage is less than 75% or more
than 125% of the configured value. Hex Value: 0200H
Sug. Var. Name: WRN_PWR@
Access: Read only
UDC Error Code: N/A
LED: N/A
When WRN_PWR@ is set the PMI Processor disables the firing of the IGBTs. If
power is restored to the correct range within 10 seconds, the PMI will resynchronize
and resume operation. If correct power is not restored within 10 seconds, bit 10 in
Fault Code register 202/1202 will set, and the Rectifier will shut down.
While the Rectifier is performing the power dip ride through, bit 1 of register
200/1200 is set to indicate that the voltage loop is in standby. This allows the UDC
application task to take some action, such as stopping or decelerating the machine
and allowing the inertia in the machine to maintain the DC bus voltage until power
comes back or the machine is stopped.
PMI Fan Loss Warning Bit 12
The PMI Fan Loss Warning bit is set if air
flow through the SB3000 PMI rack is not
sensed. Hex Value: 1000H
Sug. Var. Name: WRN_FAN@
Access: Read only
UDC Error Code: N/A
LED: N/A