Mircom OpenBAS-HV-NX10 Series, Руководство по установке

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Field Wiring
4.4 Analog Outputs
The two analog outputs have short-circuit and thermal protection. They provide 10 mA with a
maximum voltage of 10 VDC to control the speed of a motor, the position of a valve or damper,
or light intensity using electronic ballasts with 0-10 V inputs.
To ensure that analog outputs operate correctly, follow these guidelines:
• Use 18 AWG stranded wire.
• Limit the distance between the field device and the controller to 10 m (30 ft). Mircom
recommends shielded wire for noisy environments.
Table 6 Digital Input Wiring
Type of field device Power source Wiring diagram
Dry contact switch or
high switched PNP
transistor
Note: If you use a PNP
transistor, the voltage
must be DC.
External 12 VDC power supply
to feed the dry contact switches
Dry contact switch or
high switched PNP
transistor
Note: If you use a PNP
transistor, the voltage
must be DC.
12 VDC generated by the
controller
Dry contact switch or
high switched PNP
transistor
24 VDC power supply to feed
the dry contact switches
Caution: Applying any external voltage less than 0 V or greater than 10 V will
damage the analog outputs.
UI#
+12
Field Device Controller
0V
12VDC
0V
OR
UI#
24V
24V
+12
Field Device Controller
0V
0V
OR
UI#
Nȍ
24V
Field Device
24VDC
Controller
0V
0V
OR
!