232 ACE-tronics G9 ASD Installation and Operation Manual
Brake-Release Torque Reference
Program Crane/Hoist Closed Loop Hoist Control
This parameter sets the output torque level threshold that must be reached
within the time setting of the
Brake-Release Torque (Proving) Time (F988) to
initiate the Brake Release during normal operation.
This setting is also used as a reference during the count-down of the Brake-
Release Torque Stable Time.
See Figure 32 on pg. 235 for additional information on this parameter.
Direct Access Number — F987
Parameter Type — Numerical
Factory Default — 100.00
Changeable During Run — Yes
Minimum — 10.00
Maximum — 250.0
Units — %
Brake-Release Torque (Proving) Time
Program Crane/Hoist Closed Loop Hoist Control
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 Brake-Release Torque
Reference (F988) criteria must be achieved.
See Figure 32 on pg. 235 for additional information on this parameter.
Direct Access Number — F988
Parameter Type — Numerical
Factory Default — 1.0
Changeable During Run — No
Minimum — 0.5
Maximum — 10.0
Units — Seconds
Brake-Release Torque Stable Time
Program Crane/Hoist Closed Loop Hoist Control
Once the brake signal is initiated this parameter sets the time that the output
torque level must remain at or above the torque level set at
F987 before the
brake is released.
See Figure 32 on pg. 235 for additional information on this parameter.
Direct Access Number — F989
Parameter Type — Numerical
Factory Default — 0.20
Changeable During Run — Yes
Minimum — 0.00
Maximum — 2.55
Units — Seconds
Brake-Release Mechanical (Delay) Time
Program Crane/Hoist Closed Loop Hoist Control
This parameter sets the time for completing the Brake-Seized Pulse Check
(F992).
See Figure 32 on pg. 235 for additional information on this parameter.
Direct Access Number — F990
Parameter Type — Numerical
Factory Default — 0.75
Changeable During Run — No
Minimum — 0.00
Maximum — 2.50
Units — Seconds
Brake-Set Mechanical (Delay) Time
Program Crane/Hoist Closed Loop Hoist Control
Once the brake signal is initiated this parameter sets the time that must elapse
before the brake engages.
See Figure 32 on pg. 235 for additional information on this parameter.
Direct Access Number — F991
Parameter Type — Numerical
Factory Default — 0.50
Changeable During Run — No
Minimum — 0.00
Maximum — 2.50
Units — Seconds
F987 F991
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