Fuji Electric BUC S-69D, Инструкция по эксплуатации

Страница: 22 / 39

Table 2.2-4 Symbols, Names and Functions of the Control Circuit Terminals (Continued)
Cla
ssifi-
cation
Symbol Name Functions
[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.
Electrically isolated from terminals [CMY].

Using a relay contact to turn [X2] to [X7] ON or OFF
Figure 2.2-3 shows two examples of a circuit configuration that uses a relay contact to turn control signal
input [X2] to [X7] ON or OFF. In circuit (a), the slide switch is turned to SINK, whereas in circuit (b) it is
turned to SOURCE.
Note:
To configure this kind of circuit, use a highly reliable relay.
(Recommended product: Fuji control relay Model HH54PW.)
PLC
SINK
SOURCE
FWD,REV,
X1 to X9
6.6k
Ω
CM
SW1
<Control circuit>
24 VDC
14
(a) With the switch turned to SINK (b) With the switch turned to SOURCE
Figure 2.2-3 Circuit Configuration Using a Relay Contact
Digital input

Using a programmable logic controller (PLC) to turn [X2] to [X7] ON or OFF
Figure 2.2-4 shows two examples of a circuit configuration that uses a programmable logic controller
(PLC) to turn control signal input [X2] to [X7] ON or OFF. In circuit (a), the slide switch is turned to SINK
(factory default), whereas in circuit (b) it is 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 [X2] to [X7]. 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 dynamic breaking unit.
- Do not connect terminal [CM] of the inverter to the common terminal of the PLC.
[PLC]
Photocoupler
[CM]
<Control circuit>
[X1]
to [
X9],
[FWD], [REV]
+2
4 VDC
Programmable
logic controller
SOURCE
SINK
[PLC]
Photocoupler
[CM]
<Control circuit>
[X1] to [X9],
[FWD], [REV]
+2
4 VDC
Programmable
logic controller
SOURCE
SINK
(a) With the switch turned to SINK (b) With the switch turned to SOURCE
Figure 2.2-4 Circuit Configuration Using a PLC

For details about the slide switch setting, refer to Section 2.2.6 "Setting up the slide switches."