Programming 94
Function: BaseBlock 2 N.C.
Setting: 1B
A BaseBlock 2 N.C. programmed output will open to indicate that the Drive is in baseblocked state. While in a baseblock state
the Drive’s output transistors are prevented from firing. A BaseBlk 2 output contact can also serve as notice that the Drive has
a charged DC Bus, no fault and can start at any time.
Function: Motor 2 Selected
Setting: 1C
A Motor 2 Selected programmed output will close when multi-function input programmed for motor 2 selection (H1-0x = 16)
is closed.
Function: Regenerating
Setting: 1D
A Regenerating programmed output will close during regenerative operation. Regenerative operation is when the slip of the
motor is in the negative direction of normal motoring operation, i.e. deceleration. This function can only be used in flux vector
control (A1-02 = 3)
Function: Restart Enabled
Setting: 1E
Depending on the setting of parameter L5-01, the Drive may be configured to automatically attempt to restart itself after
certain faults. The Restart Enabled output will be closed once the restarts begin and will remain closed until a successful restart
is accomplished or the number of Auto Restart attempts as specified by L5-01 is reached.
A timing diagram for the Auto Restart function is contained in the parameter L5-01 description.
Function: Overload (OL1) Alarm
Setting: 1F
The OL1 fault function is designed to protect the motor. It estimates the motor’s winding temperature based on the output
current, output frequency, and time. The OL1 time is determined by the setting of parameters E2-01 (or E4-01), L1-01, and
L1-02. An Overload digital output will close whenever 90% of the programmed OL1 time is exceeded.
Function: OH Prealarm
Setting: 20
The Overheat fault function (OH) is designed to protect the Drive from excessive temperature damage. Thermistors attached
to the heatsink of the Drive monitor the temperature near the devices attached to the heatsink (e.g. input diode modules, output
transistor modules) and will fault the drive if the temperature reaches 105
o
C.
An OH Prealarm digital output will close whenever the heatsink temperature reaches the level specified by parameter L8-02.
Parameter L8-03 will determine the Drive’s response to reaching the OH Prealarm level, in addition to closing the configured
digital output.
Function: During Torque Limit
Setting: 30
When the Drive’s torque reference reaches the torque limit set in L7-01 to L7-04, the output programmed for During Torque
Limit is closed. This setting is only valid when in open loop vector or flux vector control method (A1-02 = 2 or 3).
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