Input/ Output 4-9MN1903
Inputsc an be shared between axes, and are programmable in MintMT (using the keyw ords
INPUTACTIVELEVEL,INPUTMODE,INPUTPOSTRIGGERand INPUTNEGTRIGGER)to
determinetheir ac tive level and if they should be edge triggered. Four of the inputs,
DIN0-DIN3, are fast position latch inputs.
Thereare a total of 12general purpos e digital outputs. An output can be configured in MintMT
asa general pur pose output, a drive enable output or a general error output. Outputs can be
sharedbet ween axes and are programmable, using the MintMT keyword
OUTPUTACTIVELEVEL,to determine their active level.
Theoutputs aredriv en by a module fitted to the NextMove PCI card. Two module types are
available:
HCurrents ourcing, PNP Darlington with overcurrent and short cir cuit protection
(OPT025-507, fitted as standard).
HCurrent sinking, open drain N-channel MOSFET (OPT025-508).
Iffurther digitaloutputs a re required, an expansion card is recommended (see sec tion A.1.1).
Ifan expans ion card is not available, unused stepper axes can be c onfigured as Off, and their
direction and pulse output pins then used as outputs. See the MintMT keywords CONFIGand
STEPPERIO.