TB Wood's WFC1000 Series, Installation, Operation And Maintenance Instructions

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5.3 Parameter Descriptions
This section provides a functional description of all WFC HT programming parameters at Level 3. Those with a
level indication including an asterisk (*) cannot be programmed, but can be viewed while the drive is operating.
Parameter Units Level
04-TMAX - Maximum Heatsink Temperature C L3*
This parameter is factory set to the maximum heat sink temperature that the processor will allow continuous
operation of the drive. The inverter's display will indicate HI TEMP at TMAX minus 8ÞC. The data type for
04-TMAX is a real number.
0A-CFLT - Current Fault L3
This parameter is accessible serially in the event of a fault to determine the cause of a fault. It is stored as an
integer value with fault code (See Section 7) and elapsed time available to the host computer. Refer to
Section 4 for a more thorough discussion of fault codes (07-FLT3, 08-FLT2 and 09-FLT1).
11-STAT - Inverter Status Byte L3
This parameter is accessible to determine the present conditions in which the inverter is operating. The data
is stored as an integer, but represents a binary word. Bit #7, the most significant bit, when active indicates
that the drive is operating within the 8ÞC limit of 04-TMAX. Bit #6, when active, indicates that the drive is
operating in torque limit. When bit #5 is active, the drive is operating at an output frequency in excess of that
programmed at parameter 36-F5. Bit #4 being active indicates that the drive is "AT SPEED".
The remaining bits (3 thru 0) combine to indicate multiple conditions as outlined in the following table:
0 0 0 0 Power applied to the inverter and it is in IDLE, awaiting either an operation or
programming instruction.
0 0 0 1 The inverter has faulted.
0 0 1 0 The inverter is in the STOP condition.
0 1 0 0 The FORWARD direction has been selected.
1 0 0 0 The REVERSE direction has been selected.
1 1 1 0 DC voltage is presently applied to the motor.
1 1 1 1 Writing this value into 11-STAT can be used to reset all faults.
BIT NUMBER
3 2 1 0
DESCRIPTION
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