LEESON Micro Series Compact Inverters - Manual (Page 65)

29 MANUAL (MANUAL)
This parameter selects the speed reference source when the drive is set for MANUAL speed control
(see parameter 28 - AUTO/MAN above). The speed reference options are KEYPAD (UP and DOWN
ARROW keys), or 0 - 10 VDC (from a speed pot wired to TB-2, 5A, and 6; or some other 0-10 VDC
source).
30 CONTROL (START/STOP CONTROL)
If CONTROL is set to LOCAL, TB-1 is disabled and CANNOT be used as a STOP switch!
Incorrect use of TB-1 may result in damage to equipment and/or injury to personnel!
STOP (TB-1) and EXTERNAL FAULT (TB-13D) circuitry may be disabled if parameters are
reset to factory defaults! The drive must be reprogrammed after a RESET in order to insure
proper operation (see Parameter 65 - PROGRAM).
FAILURE TO DO SO MAY RESULT IN DAMAGE TO EQUIPMENT AND/OR INJURY
TO PERSONNEL!
This parameter is used to select the source of the start/stop command and direction control . The following
settings are available:
LOCAL START/STOP and FORWARD/REVERSE commands from the keypad only.
REMOTE START/STOP and FORWARD/REVERSE commands from the terminal strip only .
BOTH LOCAL operation if TB-13A or TB-13C is programmed for LOCAL SELECT and a
contact closure is made from TB-13A or TB-13C to TB-2 . If the contact closure is not
made, the drive will be in REMOTE mode .
31 UNITS (SPEED UNITS)
UNITS sets the units of the output speed or PID display on the keypad. The following choices are available:
Speed mode: HERTZ, RPM, %HZ, /SEC, /MIN, /HR, GPH, NONE
PID mode: %, PSI, FPM, CFM, GPM, IN, FT, /SEC, /MIN, /HR, F, C, MPM, GPH
NOTE: If one of the “pid” units is selected, but the drive is in Manual (open-loop) speed control mode or
PID MODE is DISABLED, the displayed speed units will default to HERTZ. If one of the “speed” units is
selected, but PID MODE is ENABLED and the drive is in Auto mode, the displayed PID units will default
to % .
32 HZ MULT (HERTZ MULTIPLIER)
The HZ MULTIPLIER is used to scale the output speed indication on the display . If UNITS is set
for HERTZ or % HZ, this parameter has no effect. Multiplying the output frequency by the HZ
MULTIPLIER will yield the desired speed value on the display .
Example: The desired speed units is RPM with a standard 60 Hz, 1800 RPM motor. Set UNITS to RPM
and set HZ MULT to 30.00. This will result in a speed display of 1110 RPM for an output frequency of 37
Hz (37 Hz X 30 = 1110 RPM). Also, if there was a 100:1 gear reducer in the system, Parameter 33 - SPEED
DP below could be set to XX.XX to represent the output of the gear reducer (11.10 RPM in the example).
63
WARNING
WARNING