Rockwell Automation FlexPak 3000 DC Drive Version 4.3 - Manual (Page 55)

Drive Setup and Adjustment 3-7
3.4.3 Set Field Loss Detection (Jumper J20)
The FIELD LOSS DETECT jumper (J20) determines whether or not a fault is
generated when a field loss occurs.
Important: Jumper J20 is ignored if the Field Current Regulator kit is installed.
Therefore, placing J20 in the DISABLE position will not disable field loss
detection. See I/M D2-3336 for more information on the Field Current
Regulator.
To detect complete loss of field current, place the jumper on pins 1 and 2 (ENABLE).
When a complete loss is sensed, a fault is generated and the drive is stopped.
To ignore field loss, place the jumper on pins 2 and 3 (DISABLE). Any loss of field
current is ignored. Use the DISABLE option only when no field exists, such as with a
permanent magnet motor or when a separate field supply is used.
3.4.4 Set the Drive for the Enhanced Field Supply (Jumper J21)
Note that this jumper has no effect on the standard field supply or the optional Field
Current Regulator kit.
The FIELD SUPPLY JUMPER (J21) determines the voltage range that the drive
expects to see from the optional Enhanced Field Supply kit. Refer to I/M D2-3298 or
D2-3413 for more information on the Enhanced Field Supply.
The DC voltage range can be either from 45% to 90% or from 90% to 112.5% of AC
RMS line voltage.
To set the drive for a voltage range of 45% to 90%, place the jumper on pins 1and 2
(B-C).
To set the drive for a voltage range of 90% to 112.5%, place the jumper on pins 2 and
3 (A-C).
3.4.5 Set the Source for the Manual Mode Reference (Jumper J19)
The MANUAL REF jumper (J19) determines whether the internal +10 V isolated
power supply or an external +10 V source is used for the manual mode reference.
!
ATTENTION: The user must provide external field current loss detection
and inhibit drive operation via one of the drive interlocks when this jumper
is positioned to DISABLE. Misapplication of this jumper can cause the
motor to run at dangerously high speeds. Provide external field current
loss detection and inhibit drive operation using one of the drive interlocks
if this jumper is positioned to disable. Failure to observe this precaution
could result in bodily injury
!
ATTENTION: The drive will not operate at the correct speed if this jumper
is not set to the correct position. Failure to observe this precaution could
result in damage to, or destruction of, the equipment.