Fuji Electric FRENIC-Multi - Page 19

Chapter 3: Wiring
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15
Classifi-
cation
Symbol Name Functions
Relay output
[30A/B/C] Alarm
relay
output
(for any
error)
(1) Outputs a contact signal (SPDT) when a protective function has been activated to stop the motor.
Contact rating:
250 VAC, 0.3A, cos φ = 0.3, 48 VDC, 0.5A
(2) Any one of output signals assigned to terminals [Y1] and [Y2] can also be assigned to this relay contact to use
it for signal output.
(3) Switching of the normal/negative logic output is applicable to the following two contact output modes:
"Between terminals [30A] and [30C] is closed (excited) for ON signal output (Active ON)" or "Between
terminals [30A] and [30C] is open (non-excited) for ON signal output (Active OFF).
Communication
RJ-45
connector
for the
keypad
Standard
RJ-45
connector
(1) 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.
(2) Remove the keypad from the standard RJ-45 connector, and connect the RS-485 communications cable to
control the inverter through the PC or PLC (Programmable Logic Controller). Refer to Section 3.5, "Setting
up the slide switches" for setting of the terminating resistor.
Figure 3.14 RJ-45 Connector and its Pin Assignment*
* Pins 1, 2, 7, and 8 are exclusively assigned to power lines for the standard keypad and multi-function
keypad, so do not use those pins for any other equipment.
• Route the wiring of the control circuit terminals as far from the wiring of the main circuit as possible. Otherwise electric noise may
cause malfunctions.
• Fix the control circuit wires inside the inverter to keep them away from the live parts of the main circuit (such as the terminal block of
the main circuit).
• The RJ-45 connector pin assignment on the FRENIC-Multi series is different from that on the FVR-E11S series. Do not connect to the
keypad of the FVR-E11S series of inverter. Doing so could damage the internal control circuit.
Mounting the interface printed circuit board (interface PCB)
• Usually, you do not need to remove the interface PCB. However, in the case you remove the interface PCB, be sure when reinstalling
it to mount the interface PCB by locating the hooks provided on the interface PCB into the inverter until you hear a click.
Figure 3.15 Mounting the Interface Printed Circuit Board (Interface PCB)