STAC6 Drives and Microstepping Motors:
User Manual
(Discontinued Product)
• 1.19 •
1:
H A R D W A R E
Figure 1.15: Connecting to PLC with Sinking (NPN) Outputs
(most PLC's use 24 volt logic)
Figure 1.16 Using Mechanical Switches at 24 volts
STANDARD DIGITAL INPUTS
As we previously stated, the high speed STEP and DIR inputs are
configured for five volt logic. All other digital inputs are designed
for operation between 12 and 24 volts DC. This includes five
inputs on the IN/OUT 1 connector and the eight digital inputs on
the expanded I/O board (IN/OUT2).
SINGLE ENDED INPUTS
The
S I
[STAC6-Si]
includes single ended, optically isolated input
circuits that can be used with sourcing or sinking signals, 12 to 24
volts. This allows connection to PLCs, sensors, relays and
mechanical switches. Because the input circuits are isolated, they
require a source of power. When connecting to a PLC, the PLC
should be able to supply the power. When using relays or