Baldor VS1GV21-1B, Installation & Operating Manual, Page: 54 / 204

5-24 Control Wiring MN765
5.7 Relay Outputs
Relay Outputs 1 and 2 provide N.O. and N.C. voltage-free contacts. The internal relay function is shown in Figure 5-22.
Figure 5-22 Relay Contacts
J3
30
Relay Out 2 N.O.
25
26
27
Relay Out 1 N.C.
Relay Out 1 COM
Relay Out 1 N.O.
28
29
Relay Out 2 N.C.
Relay Out 2 COM
Load
Load
Load
Load
RE
+
-
If the load is a DC relay
coil, install a flyback
diode across the coil to
reduce noise
transmission.
RE
If the load is an AC
relay coil, install an RC
Snubber across the coil
to reduce noise
transmission.
RC Snubber
0.47 μf
33 Ω
See recommended tightening torques in Table A-2.
Control Board
Note: Relay Outputs are rated to 10-30VDC or 240VAC @ 5A resistive (non-inductive).
5.8 USB Port
The USB port shown in Figure 5-23 is a full 12Mbps USB 2.0 compliant port for serial communications. The connections are
described in Figure 5-23 and Table 5-14.
Figure 5-23 USB Receptacle Pin Identification
Peripheral End (USB-B)
Host End (USB-A)
1
4
1
4
2
3
Table 5-14 USB Port Connections
Pin Signal Name Description
1 Vbus USBus power from the host for monitoring
2 D- Data Return
3 D+ Data In
4 GND Power Supply Return