2-15
INSTALLATION
To determine average regenerated watts caused by lowering a load, use the formula:
where:
lbs
= weight to be lowered
FPM
= speed in ft/minute
EFF
= mechanical efficiency as a decimal
To determine dynamic braking duty cycle, use the formula:
where:
Dr
= duty cycle
BT
= braking time required to decelerate
TCT
= total cycle time
To determine the watts to be dissipated, use the formula:
where:
Sr
= maximum speed regenerating (RPM)
Sm
= minimum speed regenerating (RPM)
NOTE:
TO PROVIDE MAXIMUM LIFE AND ALLOW FOR UNANTICIPATED LOADS,
MULTIPLY THE REGENERATED WATTS (Wr) RATING BY 1.25.
Dr x lbs x FPM x EFF
44
Wr =
wr = T
DEC
x (Sr + Sm) x Dr x (0.0712)
Braking Time (BT)
Total Cycle Time (TCT)
Sr
Sm
BT
TCT
Dr =
MN723H-10/95 11/28/95 1:09 AM Page 27 (Black plate)
Summary of Contents for 23H Series
Page 11: ...1 8 GENERAL INFORMATION MN723H 10 95 11 28 95 1 07 AM Page 12 Black plate...
Page 83: ...3 30 KEYPAD PROGRAMMING AND OPERATION MN723H 10 95 11 28 95 1 13 AM Page 84 Black plate...
Page 99: ...4 16 DIAGNOSTIC INFO AND TROUBLESHOOTING MN723H 10 95 11 28 95 1 14 AM Page 100 Black plate...
Page 125: ...5 26 APPENDIX G MN723H 10 95 11 28 95 1 21 AM Page 126 Black plate...
Page 126: ...MN723H 10 95 11 28 95 1 21 AM Page 127 Black plate...