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

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Parameter Units Level
48-DCVLT - DC Brake Voltage % L2
The parameter controls the amount of DC voltage applied to the motor windings by 47-DCBRK. Factory
setting is 2/3 of 52-BOOST. It is adjustable between 0 and 15% of full voltage.
CAUTION: If DC braking is used as a holding brake, excessive motor heating may result.
51-VSEL - Volts/Hertz Characteristic Selector L2
This parameter selects between the HT mode (Vector Control) and Volts/Hertz operation. By selecting Data
Code 6, the WFC
HT activates the Vector Control scheme. When selecting Data Codes 0 through 5, the
Volts/Hertz mode is initiated and one of the three Volts/Hertz characteristics and one of two Torque Boost
modes are enabled. The following table defines these selections. Their actions are shown graphically below.
52-BOOST - Torque Boost % L1
52-BOOST may be programmed to provide additional starting torque to the motor, if required. it is adjustable
in 0.01% increments from 0 to 25%. Factory set BOOST values are model dependent.
Care must be exercised with this adjustment. Too much boost may cause excessive motor currents
and motor heating. Use only as much boost as is necessary to start the motor. AUTOBOOST may be
selected at parameter 51-VSEL to provide the optimum value of boost to suit the load automatically.
Some 2-pole (3600 RPM synchronous speed) have proven to require less than the default value of
52-BOOST.
DATA CODE CHARACTERISTIC DATA CODE CHARACTERISTIC
0 Linear – Autoboost 4 Quadratic – Autoboost
1 Linear – Fixed Boost 5 Quadratic – Fixed Boost
2 Semi-Quadratic – Autoboost 6 Vector Control
3 Semi-Quadratic – Fixed Boost
Note: When selecting the HT mode (Vector Control) parameters 5B-IMAG and 65-SLIP must be activated for high torque, low speed
operation. Fine-tune adjustments can be made for optimum performance. Refer to Section 3.9 for proper setup for HT operation.
STANDARD
L1NEAR
PUMPS
MIXED
LIN/QUAD
FANS
QUADRATIC
51-VSEL = 0
51-VSEL = 2
51-VSEL = 4
FKNEE
FKNEE
FKNEE
AUTO-BOOST
100%
BOOST
0%
100%
BOOST
0%
100%
BOOST
0%
100%
BOOST
0%
100%
BOOST
0%
100%
BOOST
0%
51-VSEL = 1
51-VSEL = 3
51-VSEL = 5
FKNEE
FKNEE
FKNEE
FIXED BOOST
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