ACE-tronics G9 ASD Installation and Operation Manual
185
Emergency-Lift
Program
Emergency Lift
In the event of an encoder malfunction, this parameter may be used to Enable/
Disable the Emergency Lift mode of operation.
In the Emergency Lift mode of operation, the hoist-control function switches
from closed-loop operation to open-loop operation and does not require or use
an encoder feedback signal.
This parameter may be enabled via the EOI (set this parameter to Enabled) or
via a discrete input terminal (see
Table 7 on pg. 236
).
Settings:
Disabled
Enabled
Direct Access Number — F656
Parameter Type — Selection
Factory Default — Disabled
Changeable During Run — Yes
Emergency-Lift Maximum Speed
Program
Emergency Lift
While operating in the Emergency Lift mode, this parameter setting
determines the maximum commanded speed allowed.
Direct Access Number — F657
Parameter Type — Numerical
Factory Default — 30.00
Changeable During Run — No
Minimum — 0.00
Maximum — 30.00
Units — Hz
Emergency-Lift Lower Speed Limit
Program
Emergency Lift
When operating in the Emergency Lift mode, this parameter sets the lowest
frequency that the ASD will accept as a frequency command or frequency
setpoint.
Direct Access Number — F658
Parameter Type — Numerical
Factory Default — 6.00
Changeable During Run — No
Minimum — 0.00
Maximum — 30.0
Units — Hz
Emergency-Lift Torque Compare Time
Program
Emergency Lift
When operating in the Emergency Lift mode, the output-torque level
requirement for the brake-release function must be met before the brake can
release.
This parameter is used to set a time in which the required brake-release torque
criteria must be achieved. If this time setting is too short the brake will not
release.
Direct Access Number — F659
Parameter Type — Numerical
Factory Default — 1.0
Changeable During Run — Yes
Minimum — 0.0
Maximum — 1000.0
Units — Seconds
F656
F659
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