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138 H9 ASD Installation and Operation Manual
Forward Run/Reverse Run Disable
Program ⇒ Frequency ⇒ Forward/Reverse Disable
This parameter Enables/Disables the Forward Run or Reverse Run mode.
If either direction is disabled, commands received for the disabled direction will
not be recognized.
If both directions are disabled, the received direction command will determine
the direction of the motor rotation.
Settings:
0 — Off
1 — Disable Reverse Run
2 — Disable Forward Run
Direct Access Number — F311
Parameter Type — Selection List
Factory Default — Off
Changeable During Run — No
Random Mode
Program ⇒ Protection ⇒ Retry/Restart
This parameter adjusts the carrier frequency randomly. This feature is effective
in minimizing the negative effects of mechanical resonance.
Settings:
0 — Disabled
1 — Enabled
Direct Access Number — F312
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — No
Carrier Frequency Control Mode
Program ⇒ Special ⇒ Carrier Frequency
This parameter provides for the automatic decrease of the carrier frequency.
Select 1 to decrease the Carrier Frequency setting as a function of an
increased current requirement.
Selection 2 or 3 may also include an output voltage drop as a function of an
increased current requirement. The Carrier Frequency should be set below
4
kHz.
Settings:
0 — No Decrease and No Limit
1 — Valid Decrease and No Limit
2 — No Decrease and Limit Small Pulse
4 — Valid Decrease and Limit Small Pulse
Direct Access Number — F316
Parameter Type — Selection List
Factory Default — Valid Decrease and
No Limit
Changeable During Run — Yes
Synchronized Deceleration Time
Program ⇒ Protection ⇒ Undervoltage/Ridethrough
In the event that the Ridethrough function activates in a multiple-motor
application it will be necessary to manage the stopping motors synchronously
as not to damage the product being processed (e.g., wire spools, bobbin winder
for textile machines, etc.).
This parameter is used to minimize the product breakage during a momentary
power outage. This function stops multiple machines simultaneously or makes
them reach their respective command frequencies simultaneously by regulating
their deceleration times.
See parameter F302 for more information on this setting.
Direct Access Number — F317
Parameter Type — Numerical
Factory Default — 2.0
Changeable During Run — Yes
Minimum — 0.1
Maximum — 6000.0
Units — Seconds
F311 F317