Baldor MN1903 installation manual Stepperio

Inputs can be shared between axes, and are programmable in MintMT (using the keywords INPUTACTIVELEVEL, INPUTMODE, INPUTPOSTRIGGER and INPUTNEGTRIGGER) to determine their active level and if they should be edge triggered. Four of the inputs, DIN0-DIN3, are fast position latch inputs.

There are a total of 12 general purpose digital outputs. An output can be configured in MintMT as a general purpose output, a drive enable output or a general error output. Outputs can be shared between axes and are programmable, using the MintMT keyword OUTPUTACTIVELEVEL, to determine their active level.

The outputs are driven by a module fitted to the NextMove PCI card. Two module types are available:

HCurrent sourcing, PNP Darlington with overcurrent and short circuit protection (OPT025-507, fitted as standard).

HCurrent sinking, open drain N-channel MOSFET (OPT025-508).

If further digital outputs are required, an expansion card is recommended (see section A.1.1). If an expansion card is not available, unused stepper axes can be configured as Off, and their direction and pulse output pins then used as outputs. See the MintMT keywords CONFIG and

STEPPERIO.

MN1903 Input / Output 4-9