20
Calibration
DB
The deadband trimpot setting determines the time that will elapse between
the application of current in one direction before current is applied in the
opposite direction. It also affects the resistance that a motor has to changes
in shaft position at zero speed by applying AC voltage to the motor
armature.
Deadband is factory calibrated to approximately the 3 o’clock position
for 60 Hz AC line operation. Recalibrate the deadband to the 9 o’clock
position for 50 Hz AC line operation. If you hear motor noise (a humming
or buzzing sound), the deadband might be set too high. Turn the deadband
trimpot CCW until the motor noise ceases. See Figure 12 for
recommended deadband settings.
Figure 12. Deadband Settings
Figure 11. Recommended FWD TQ, REV TQ, and IR COMP Settings
for RG511A
(actual settings may vary with each application)
m
Warning Do not turn DB past the 60 HZ setting. This could cause
shoot thru, which may blow fuses and cause the drive to fail.
250-0234 rev 1.qxd 3/12/99 11:14 AM Page 20
Содержание RG501A
Страница 8: ...vi 250 0234 rev 1 qxd 3 12 99 11 14 AM Page vi...
Страница 10: ...2 Dimensions Figure 1 RG501A and RG511A Dimensions 250 0234 rev 1 qxd 3 12 99 11 14 AM Page 2...
Страница 35: ...27 Block Diagram Figure 13 RG501A and RG511A Block Diagram 250 0234 rev 1 qxd 3 12 99 11 14 AM Page 27...
Страница 41: ...33 Notes 250 0234 rev 1 qxd 3 12 99 11 14 AM Page 33...
Страница 42: ...34 Notes 250 0234 rev 1 qxd 3 12 99 11 14 AM Page 34...
