User guide

33 SPEED DP (SPEEDDECIMALPOINT)
This parameter is used to move the decimal point location in the speed display. This parameter will not
have any effect if UNITS is set to HERTZ or % HZ. The possible settings are: XXXXX, XXX.X, XX.XX,
X.XXX,and.XXXX.RefertoParameter32-HZMULTaboveforanexampleontheuseofSPEEDDP.
34 LOAD MLT (LOADMULTIPLIER)
This parameter is used to scale the % LOAD display. If the drive output current rating is higher than
the motor full load current rating, the drive will not display 100 % load when the motor is at full load.
Settingthisparametertotheratio(in%)ofthedriveoutputcurrentratingtothemotorfullloadcurrent
rating will scale the load display to show the motor load instead of the drive load. This will result in a
display of 100% when the motor is at full load.
The motor overload circuitry is also affected by this parameter. When the display reads 150% load, the drive
will trip on OVERLOAD in one minute, regardless of the actual motor current. If this parameter is used
to scale the display to show actual motor load, then parameter 17 - MOTOR OL should be left at 100%.
Likewise,ifMOTOROLhasbeensetaccordingtothemotorfullloadrating,thisparametershouldbeleft
at100%.ChangingbothparameterswillresultinanOVERLOADfaultsoonerthanexpected.
The output signal at TB-10B is also affected by this parameter. When set to the ratio of current ratings as
explainedabove,theoutputsignalwillbeproportionaltomotorloadinsteadofdriveload.
35 CONTRAST (LCDDISPLAYCONTRAST)
 ThisparameterisusedtoadjustthecontrastofthedrivedisplayandcanbesettoLOW,MED,orHIGH
in order to obtain the most visible display. If the drive is mounted lower than eye level, a HIGH setting
maymakethedisplaymorevisible.Likewise,ifthedriveismountedhigherthaneyelevel,aLOWsetting
maymakethedisplaymorevisible.
36 SLEEP TH (SLEEPTHRESHOLD)
The MICRO Series drive has a Sleep Mode function that allows the drive to cease operation when system
demand falls below a preset level. This is to prevent the motor from operating at low speeds for long
periods of time. It is commonly used along with the PID set point Control feature, but can also be used in
standard speed control mode.
When the commanded speed falls below the SLEEP THRESHOLD setting for the defined SLEEP DELAY
time (see Parameter 37 below), the drive will “go to sleep” and the motor will go to zero speed. The
drivewill remain“sleeping”until itis commandedtooperate ataspeed thatis 2Hzabove theSLEEP
THRESHOLD,atwhichpointitwill“wakeup”andrampthemotoruptothecommandedspeed.
NOTE 1: While the drive is in Sleep Mode, the Status portion of the display will read SLEEP.
NOTE 2:Ifthedrive’scommandedspeedgoesbelowtheSLEEPTHRESHOLD,theSLEEPDELAYtimer
willstarttocountdown.IfthecommandedspeedequalsorexceedstheSLEEPTHRESHOLDbeforethe
SLEEP DELAY times out, the SLEEP DELAY timer will be reset.
NOTE 3: If the drive is in a Stop state, and the commanded speed is below the SLEEP THRESHOLD, the
drive will immediately go to sleep upon a Start command, bypassing the SLEEP DELAY.
37 SLEEP DL (SLEEPDELAY)
This parameter sets the amount of time the drive must operate below the SLEEP THRESHOLD (see
Parameter36above)beforethedrive“goestosleep”andbringsthemotortozerospeed.
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