User guide

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 SPD=0HZ Therelayenergizeswhenthereisnooutputtothemotor,foranyreason,suchas:drive
   isinSTOPmode,driveisinRUNmodebutthespeedcommandis0Hz,driveisin
SLEEP mode, drive has tripped into a fault, etc.
 Theopen-collectoroutput circuitis acurrent-sinking typeratedat30VDCand40mAmaximum. An
externalpowersupply(30VDCmax.)mustbeusedtopowertheopen-collectoroutputs.Thedrivedoes
not have a dedicated power supply for the open-collector outputs.
53 TB15 OUT (TB-15OPENCOLLECTOROUTPUT)
This parameter sets the open-collector output indication for terminal TB-15. It has the same functionality
as Parameter 52 - TB14OUT above.
54 RELAY (RELAYFUNCTION)
The control board has one set of FORM C relay contacts at TB-16, 17, and 18 that can be programmed
for the same indications as the open-collector outputs described in parameter 52.
The FORM C contacts at TB-16, 17, and 18 are rated 2 amps at 28 VDC or 120 Vac. Control wiring
diagramsshowrelaysinthereststate(coilsNOTenergized).
NOTE: Models rated above 60 Hp at 400/480 Vac have a second Form C relay at terminals TB-19, TB-20,
and TB-21. This relay is controlled by Parameter 52 - TB14 OUT.
55 TB5B LOSS (LOSSOFFOLLOWERACTION)
 ThisparameterselectstheactiontakenbythedriveifthefollowersignalislostatTB-5B.Thisfunctionis
only active if the follower signal is 4-20 mA. The signal is considered lost if it falls below 2 mA.
FAULT The drive will trip into a FOLLOWER fault condition.
 SP#4  ThedrivewillgotoSPEED#4(Parameter4).
NONE The drive will go to the programmed minimum speed.
57 SERIAL  (SERIALCOMMUNICATIONS)
This parameter is used to activate serial communications. When using this feature, the drive can
communicatewithapersonalcomputer(PC),programmablelogiccontroller(PLC),orotherexternaldevice
thatutilizes RS-485 serialcommunications forcontrol.The serialinterface maybeused toreadpresent
parametersettings(uploadingtothecontroldevice),writenewparametersettings(downloadingfromthe
controldevice), monitorpresentdrive activity,and controlcurrentdriveactivity.The followingsettings
are available:
DISABLE Serial communication function is disabled.
W / TIMER Enables serial communications with a watchdog timer. If there is not serial activity (read
orwrite)formorethan10seconds,serialcontrolwillturnoffandthedrivewillstop.
W / O TIMER Enables serial communications without a watchdog timer. However, after 10 seconds
of no serial activity, serial control can be turned off by issuing a STOP command from
anysource(keypad,terminalstrip)otherthantheseriallink.
NOTE 1:ThekeypadSTOPbuttonisalwaysactive,regardlessofwhatmethod(LOCAL,REMOTE,or
SERIAL)isbeingusedtocontrolthedrive.TheremoteSTOPinput(TB-1)mayalsobeactive,depending
on how the drive is programmed.