www.baldormotion.com

4-6 Input/ Output MN1940

4.3.3 Sinking/ sourcing input configuration
AllDSMS 17, 23 and 34 models can be wired to create sinking inputs, where a refer ence
voltagebetw een +5 and +24 VDC is connected to the Optocoupler Reference (w hite) lead.
Theisolated input s are then interfaced to a sinking output (which utilizes the s ame supply as
theopto coupler referenceinput) such as a switch, open collector, or PLC output. To maintain
isolation,t he input power source should not be connected to the motor power sour ce.
INPUT
Optocouplerreference
(white)
Optocouplerreference
(white)
Controller
output INPUT
+5to +24 VDC
(seewarning)
+5to +24 VDC
(seewarning)
RLIMIT
RLIMIT
Figure9 - Sinking input configurations
Alternatively,s ourcing inputs may be used where the Optocoupler Referenc e (White) lead is
connected to ground. The isolated inputs are then sourced to between +5 to +24 VDC from a
switch, open collector, or PLC output.
INPUT
Optocouplerreference
(white) Optocouplerreference
(white)
Controller
output
INPUT
+5to +24 VDC+5to +24 VDC
RLIMIT
RLIMIT
Figure10 - Sourcing input configurations