2-19
Table 2.7 Symbols, Names and Functions of the Control Circuit Terminals (Continued)
Classifi-
cation
Symbol Name Functions
[EN] Enable input
(1) Safety stop function that is compliant with EN954-1, Category 3. This terminal
allows the hardware circuit to stop the inserter's output transistor and coast the motor
to a stop.
(2) This terminal is exclusively used for the source mode input. When it is
short-circuited with terminal [PLC], the Enable input is ON (ready for inverter run);
when it is opened, the inverter coasts the motor to a stop. (This terminal is not
interlocked with the slide switch SW1.)
(3) By factory default, terminals [EN] and [PLC] are short-circuited with each other
using a jumper wire, disabling this function. To enable it, be sure to remove the
jumper wire.
For details of connection to this terminal and precautions, refer to Chapter 9, Section 9.6
"Compliance with EN954-1, Category 3."
<Terminal [EN] circuit specification>
[PLC]
Photocoupler
[CM]
<Control circuit>
5.4kΩ
+24 VDC
[EN]
5.4kΩ
[PLC]
PLC signal
power
(1) Connects to PLC output signal power supply.
Rated voltage: +24 VDC (Allowable range: +22 to +27 VDC), Maximum 100 mA DC
(2) This terminal also supplies a power to the load connected to the transistor output
terminals. Refer to "Transistor output" described later in this table for more.
[CM]
Digital input
common
Two common terminals for digital input signals
These terminals are electrically isolated from the terminals [11]s and [CMY].
Using a relay contact to turn [X1] to [X7], [FWD], or [REV] ON or OFF
Figure 2.14 shows two examples of a circuit that uses a relay contact to turn control signal input [X1] to
[X7], [FWD], or [REV] ON or OFF. In circuit (a), the slide switch SW1 has been turned to SINK, whereas
in circuit (b) it has been turned to SOURCE.
Note: To configure this kind of circuit, use a highly reliable relay.
(Recommended product: Fuji control relay Model HH54PW.)
[PLC]
Photocoupler
[CM]
<Control circuit>
[X1] to [X7],
[FWD], [REV]
+24 VDC
SOURCE
SINK
[PLC]
Photocoupler
[CM]
<Control circuit>
[X1] to [X7],
[FWD], [REV]
+24 VDC
SOURCE
SINK
(a) With the switch turned to SINK (b) With the switch turned to SOURCE
Figure 2.14 Circuit Configuration Using a Relay Contact
Digital input
Using a programmable logic controller (PLC) to turn [X1] to [X7], [FWD], or [REV] ON or OFF
Figure 2.15 shows two examples of a circuit that uses a programmable logic controller (PLC) to turn
control signal input [X1] to [X7], [FWD], or [REV] ON or OFF. In circuit (a), the slide switch SW1 has
been turned to SINK, whereas in circuit (b) it has been turned to SOURCE.
In circuit (a) below, short-circuiting or opening the transistor's open collector circuit in the PLC using an
external power supply turns ON or OFF control signal [X1] to [X7], [FWD], or [REV]. When using this
type of circuit, observe the following:
- Connect the + node of the external power supply (which should be isolated from the PLC's power) to
terminal [PLC] of the inverter.
- Do not connect terminal [CM] of the inverter to the common terminal of the PLC.
Item Min. Max.
ON level 22 V 27 V
Operating voltage
(SOURCE)
OFF level 0 V 2 V
Operating current at ON
(Input voltage is at 24 V)
5 mA 10 mA
Allowable leakage current at OFF − 0.5 mA
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