51
Signal Input Circuits
IMS-MN-LMDA42C_A.pdf
LMD CANopen
Wiring/Cable Specifications
• Shielded cable
• Twisted-pair cables
• Grounding of the shield at both ends only if on equipotential ground plane
Max cable length
1
feet (m)
328 (100)
Minimum conductor cross section
AWG (mm
2
)
24 (0.205)
Maximum conductor cross section
AWG (mm
2
)
20 (0.518)
1
The length depends on the conductor cross section and the driver circuit used
• Use equipotential bonding conductors.
• Verify that wiring, cables, and connected interfaces meet the PELV requirements.
Signal Input Circuits
The signal inputs may be interfaced as sinking or sourcing as determined by the bias of the
INPUT _ REFERENCE
. Connecting the
INPUT _ REFERENCE
to a 5 ... 24V power source will
provide sinking inputs. Connecting it to ground will provide sourcing inputs.
The
ACTIVE LOGIC HIGH/LOW
state of the inputs are configured using
Index 2000h
Subindex 2
.
The inputs are galvanically isolated by means of optical isolation.
Line driven input (sinking):
Constant
Current
Source
INPUT
+5 to +24 VDC
VDC Common
INPUT_REF
Line driven input (sourcing):
Constant
Current
Source
INPUT
+5 to +24 VDC
VDC Common
INPUT_REF
