Digital Relay Outputs; Figure 21 Relay Outputs - Mircom OpenBAS-HV-NX10 Series Installation Manual

Table 7 Analog Output Wiring (Continued)
Type of field device Wiring diagram
24 VAC or VDC valve or
damper with 1-10 VDC
control input
4.5

Digital Relay Outputs

Outputs 1 and 5 have common (labeled BO), normally open (labeled no), and normally closed
(labeled nc) contacts.
Outputs 2-4 and 6-8 have 2 contacts and can be configured in the software as normally open
or normally closed. By default they are normally open.
!
Attention: If DC voltage with anything other than purely resistive load is used on
the digital outputs, then the appropriate protective devices must be
installed.

Figure 21 Relay outputs

Field Device
+
Signal
-
Relay Relay
output 2 output 4
Relay
Relay
output 3
output 1
BO2 BO3
nc1 BO1 no1
Controller
24 V
24V
AO#
0V
0V
Relay
output 6
Relay Relay
output 5 output 7
BO4 BO6 BO7
nc5 BO5 no5
Field Wiring
Relay
output 8
BO8
33 (45)