Fuji Electric FRENIC-HVAC User Manual page 217

Symbol Name
[EN1] Enable input 1
[EN2] Enable input 2
[PLC] Power for
programmable
logic controller
signals
[CM] Digital input
common
[FM1] Analog monitor
[FM2]
[11] Analog common
[Y1] Transistor
output 1
[Y2] Transistor
output 2
[Y3] Transistor
output 3
[Y4] Transistor
output 4
[CMY] Transistor output
common
[Y5A/C] General-purpose
relay output
[30A/B/C]
Alarm relay
output
DX+/DX- RS-485
/SD communications
port 2
(Terminal block)
RJ-45 RS-485
connector for communications
the keypad port 1
(Standard RJ-45
connector)
(1) Opening terminals [EN1] and [PLC] or terminals [EN2] and [PLC]
stops the inverter's output transistor.
(2) These terminals are exclusively used for the SOURCE mode input
and cannot be switched to the SINK mode input.
(3) If input to either one of [EN1] and [EN2] is OFF, the inverter issues
an alarm (ECF).
Connects to PLC output signal power supply.
Two common terminals for digital input signals.
These terminals output monitor signals of analog DC voltage (0 to +10 V)
or analog DC current (+4 to +20 mA DC or 0 to +20 mA DC).
Two common terminals for analog input and output signals.
Both the SINK and SOURCE modes are supported.
(1) Various signals such as inverter running, frequency arrival and
overload early warning can be assigned to terminals [Y1] to [Y4] by
setting function code E20 to E23.
(2) It is possible to switch the logic value (1/0) for ON/OFF of the
terminals between [Y1] to [Y4], and [CMY]. If the logic value for
ON between [Y1] to [Y4] and [CMY] is 1 in the normal logic
system, for example, OFF is 1 in the negative logic system and vice
versa.
Common terminal for transistor output signals
(1) A general-purpose relay contact output usable as well as the function
of the transistor output terminal [Y1], [Y2], [Y3] or [Y4].
(2) Whether excitation or non-excitation causes this terminal to output an
alarm can be switched.
(1) Outputs a contact signal (1C) when the protective function has been
activated to stop the motor.
(2) Any one of output signals assigned to terminals [Y1] to [Y4] can also
be assigned to this relay contact to use it for signal output.
(3) Whether excitation or non-excitation causes this terminal to output an
alarm can be switched.
The communications port transmits data through the RS-485 multipoint
protocol between the inverter and a computer or other equipment such as
a PLC (Programmable Logic Controller).
Used to connect the inverter with the keypad. The inverter supplies the
power to the keypad through the pins specified below. The extension
cable for remote operation also uses wires connected to these pins for
supplying the keypad power.
5-17
5.1 Mounting and Wiring the Inverter
Functions