ABB PVI-3.0-TL-OUTD-S-US, Руководство по эксплуатации продукта

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3007CC3
3 - Mounting and wiring
C
onfigurable relay connection (Alarm)
The inverter has a multi-function relay accessible at the terminal block labeled item R in
table 3-3. Use the mating connector supplied with the inverter to simplify connections to the
terminal block. The relay output can be configured to activate a visual and/or audible alarm
or be utilized by another control such as a building control system. The signal logic can be
controlled by the user by using either the normally open (N/O) contact – or the normally
closed (N/C) contact.
The relay can be used in four different operating modes which are set using the associated
Settings menu of the inverter display. Refer to the Settings menu in section 4 for descriptions
and instructions to program the connection. The device to be connected to the relay can be
of different types (light, sound, etc.) but must comply with the following requirements:
Alternating current Max Voltage: 240 Vac Max Current: 1 A
Direct current Max Voltage: 30 Vdc Max Current: 0.8 A
R
emote control connection
The connection and disconnection of the inverter to and from the grid can be controlled
remotely through an external control. The function must be enabled in the associated Settings
menu in section 4.
If the remote control function is disabled, the inverter automatically switches on and off in re-
sponse to appropriate conditions. If the remote control function is enabled from the menu, the
switching on of the inverter also depends on the state of the R_ON/OFF terminal compared
to the GND terminal present on the terminal labeled Q . in table 3-3.
If the function is enabled as noted above :
• With the +R and -R terminals open (floating) the inverter operates normally.
• With the +R and -R pins shorted together the inverter is disconnected from the grid and
a “Remote Control OFF” message is shown on the display.
Since this is a low-level digital input, the wiring to the +R, -R terminals is typically small
(18AWG to 24 AWG).
M
onitoring system via serial (RS-485)
The RS-485 line can be connected to various monitoring devices that can be in local or
remote mode:
• Local monitoring from PC with a PVI-USB-RS485_232 adaptor and Aurora Communicator
software.
• Local monitoring from a remote display such as the PVI-DESKTOP device with a PVI-USB-
RS485_232 adaptor.
For local monitoring, a PVI-USB-RS485_232 brand adaptor is recommended for connection
between the first unit of the daisy-chain and the computer. Equivalent RS-485 to RS-232
adapters found on the market can also be used for the same purpose; however, they have
not been specifically tested in order to guarantee correct operation of the connection. These
devices may also require external termination impedance, whereas this is not necessary with
the PVI-USB-RS485_232.