Baldor VS1SM, Installation & Operating Manual

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5-2 Control Wiring MN761
5.2 Control Input Connections
Determine if you will use NPN (factory setting) or PNP connections. NPN/PNP settings are shown in
Figure 5‐2. For NPN, CM (Common or ground) is used to switch the input signals. For PNP, P24
(+24VDC output) is used to switch the input signals.
Figure 5‐2 NPN/PNP Mode
Set the NPN/PNP switch for desired mode.
NPN Mode
PNP Mode
OR
See Table 4‐1 for Tightening
Torques
NPN
PNP
Input connections are shown in Figure 5‐3
1.
For NPN Connections Connect the Digital Inputs to one pole of a switch and the other switch pole
to CM. An active low at P1 - P5 will activate the inputs.
For PNP Connections 1 Connect the Digital Inputs to one pole of a switch and the other switch
pole to P24. An active High at P1 - P5 will activate the inputs.
2. The speed Command input can be wither a Voltage (0-10VDC) or a Current (0-20mA) input.
For Voltage input, either an external potentiometer or an external voltage reference can be used.
a.
For an External reference voltage input, connect the 0-10VDC input to the VI terminal.
Connect the reference from the external source to the CM terminal.
b. For an external potentiometer, connect the pot as shown, one end to VR terminal, the wiper to
VI terminal and the other end to CM terminal.
For Current input, connect the 0-20mA source to the
I
terminal, the reference to CM terminal.