Rockwell Automation 1397 DC Drive Firmware 2.xx - Manual (Page 96)

4–24 Start–Up and Adjustment
Publication 1397-5.0 — June, 2001
Setting the Source for the Anlg Reference 2 (Jumper J19, Manual Ref
on board)
!
ATTENTION: The Drive will not operate at the
correct speed if Jumper J19 is not set to the correct
position. Failure to observe this precaution could result
in damage to, or destruction of, the equipment.
The Manual Ref jumper (J19) determines whether the internal + 10 V
isolated power supply or an external +10 V source is used for Analog
Reference 2.
To use the + 10V power supply for the Analog Reference 2
potentiometer, place the jumper on pins 2 and 3 (Pot). The supply at
terminal 16 of the regulator board terminal strip is used.
To use an external +10 V source, place the jumper on pins 1 and 2
(Ext). The external reference is connected at terminals 17 and 18 of
the regulator board terminal strip.
NOTE: This input can be used as a trim on the auto mode speed
reference by setting the jumper on pins 1 and 2 (EXT). In this case a
±10 V range can be used.
Setting the Voltage Range and Scale of an Analog Tachometer
(Jumpers J14 and J11)
The Tach V Range (J14) and Tach V Scale (J11) jumpers set the
voltage range and scale of the analog tachometer.
NOTE: These jumpers are ignored if an analog tach is not used and
if [Feedback Type] (P. 039) is not set to DC Tach or AC Tach.
Note: Jumper J14 determines which terminal is used for tach
connection. Refer to Figure 4.15 for a tach installation illustration.
Table 4.H details tach terminations for Lo or Hi speed operation.
!
ATTENTION: The Drive can overspeed if jumper J14
is set incorrectly, or the tach is wired incorrectly.
Failure to observe this precaution could result in
damage to, or destruction of, the equipment.
Table 4.H
Regulator Board Terminal Strip Tach Terminations
Terminal Terminal
Hi – Range 21 23 (Common)
Lo – Range 22 23 (Common)
During quick start, the Drive calculates the value of the tachometer
voltage range based on the values of [Max Process Speed] (P. 042) and
[Anlg Tach v/1000] (P. 047) and the setting of Feedback Select. The
correct values are displayed under the Diagnostics menu on the HIM.
Verify these jumper settings before performing the auto-tuning
procedure.