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Parameter Explanations (cont'd)
Item 72, LOW SPEED SIGNAL OUTPUT FREQUENCY - Use this parameter to set the frequency above
which one of the drive's output contacts (RCHA-RCHC, etc) changes state. See Item 60, 63, and 66.
Item 73, ACC/DEC COMPLETE DETECT BAND - If one of the output contacts' function is set to "6"
(accel/decel complete), use this parameter to operate the contact when the output frequency is within this
bandwidth (minus during accel, plus during decel) of the frequency command.
Item 74, SPEED REACH MAXIMUM FREQUENCY - Use this parameter to set the output frequency at which
one of the drive's output contacts (RCHA-RCHC, etc.) changes state during an acceleration. See Items
60, 63, and 66.
Item 75, SPEED REACH MINIMUM FREQUENCY - Use this parameter to set the output frequency at which
one of the drive's output contacts (RCHA-RCHC, etc.) changes state during a deceleration. See Items 60,
63, and 66.
Item 76, COMMERCIAL POWER/INVERTER SWITCHING OUTPUT - On appropriately equipped drives, use
this parameter to determine when the H3's bypass circuitry is activated:
1:
Motor runs on bypass when drive trips
2:
Motor runs on bypass when a signal is given
3:
Both of the above
Contact your Toshiba distributor for information on how to program and wire a H3 for this function.
Item 77, COMMERCIAL POWER/INVERTER SWITCHING FREQUENCY - On appropriately equipped
drives, use this parameter to determine the drive output frequency reached before the H3's bypass
circuitry is activated. Contact your Toshiba distributor for information on how to program and wire a
drive for this function.
Item 78, "FP" OUTPUT TERMINAL PULSE FREQUENCY - Use this parameter to set the number of
pulses per output Hz.
Item 79, RR INPUT SPECIAL FUNCTION SELECT - Use this parameter to change the function
of the 0-10 volt signal applied to the "RR" terminal:
0:
Standard (speed reference)
1:
Scale MAXIMUM OUTPUT FREQUENCY. Minimum 30 Hz
2:
Adjust multiplier on accel/decel times. Zero volts sets the multiplier to 1, 10 volts sets
the multplier to 10.
3:
Adjust voltage boost. Zero volts sets voltage boost to 0%. 10 volts set the voltage boost
to its programmed value.
4:
Current limit. Ten volts sets current limit to 150%. Contact your Toshiba distributor for
information on how to Torque Current limit.
Suggestion: set one of the monitors (Items 289-292) to a value of "14" (RR input value) to see
effective MAXIMUM OUTPUT FREQUENCY, accel/decel multiplier, effective voltage boost, or
effective STALL PROTECTION CURRENT LEVEL.
Item 80, FREQUENCY PRIORITY SELECTION #1 - use this parameter to give one of the drive's
frequency setting signals priority over another. Only when the signal set here goes to zero will the drive
follow the signal set in Item 81. If the signal selected here becomes non-zero, the drive will follow it and
ignore the signal selected in Item 81. Set this parameter to "5" when using MOP control or inputting a
binary reference via the drive's terminal strip. Preset speeds have priority over "RR" and "RX".
Item 81, FREQUENCY PRIORITY SELECTION #2 - use this parameter to give one of the drive's
frequency setting signals priority over another. Only when the signal set in Item 80 goes to zero will the
drive follow the signal set here. If the signal selected in Item 80 becomes non-zero, the drive will follow it
and ignore the signal selected here.