Specifications
Input signal
16 or 12 bits
Binary/4- or 3-digit BCD
SIGN signal, SET (READ) signal
Input power supply
voltage
24-VDC internal power supply (Insulated)
Mounting Procedure
1, 2, 3... 1. Be sure to turn OFF the main Inverter power supply,
wait at least 1 minute (at least 3 minutes for 30-kW-or-
higher Inverters), remove the front cover of the Inverter,
and make sure the charge indicator is not lit.
2. The Digital Reference Card is an option C. Mount the
Card in the option-C location as shown in the diagram
below.
3. Insert the spacer that is provided into the spacer mount-
ing hole located on the mounting base of the Inverter.
4. Make sure the Optional Card connector and the control
circuit board connector are properly aligned, and then
push the spacer through the spacer mounting hole on
the Card until it clicks into place.
5. Connect the ground wire of the Card to FG terminal
12(E) on the Inverter control circuit board.
Front View
Side View
4CN
option-A
connector
2CN
option-C
connector
3CN
option-D
connector
Option A
Control
circuit board
Option C
Option D
Wiring
Peripheral Device Wiring Example
3-phase,
200 VAC
(400 V)
Digital command common
Ground wire (E)
Input Terminal
+24 V
6.2 V
2.4 k
Ω
5.1 k
Ω
L1 (R)
L2 (S)
L3 (T)
T1 (U)
T2 (V)
T3 (W)
Note
1. Be sure to connect the ground wire (E) to terminal
12(E) of the Inverter control circuit board.
2. Use shielded cable for the control wire and connect the
wire to the TC3 shielded-wire connector.
3. Make sure the wire length is less than 50 m and that it
is placed at least 30 cm away from other power lines.
Description of Input Terminals
Termi-
No.
Code
Description
nal
Binary
input
BCD input
5-digit BCD
TC1
1
D0
2
0
1
x 10
0
2
x 10
0
2
D1
2
1
2
4
3
D2
2
2
4
8
4
D3
2
3
8
1
x 10
1
5
D4
2
4
1
x 10
1
2
6
D5
2
5
2
4
7
D6
2
6
4
8
8
D7
2
7
8
1
x 10
2
9
D8
2
8
1
x 10
2
2
10
D9
2
9
2
4
TC2
1
D10
2
10
4
8
2
D11
2
11
8
1
x 10
3
3
D12
2
12
1
x 10
3
2
4
D13
2
13
2
4
5
D14
2
14
4
8
6
D15
2
15
8
1
x 10
4
7
SIGN
SIGN signal input
2
8
SET
SET (READ) signal input
9
0V
Digital command COMMON terminal
TC3
(E)
Shielded line terminal
Note
1. Input specifications for individual input terminals:
+24 VDC (internal power supply), approx. 8 mA
2. Select one of the following external input elements.
Relay:
30 VDC min., 100 mA max.
Transistor: 35 VDC min., 30 mA min.
Wire Thicknesses
Terminal
Wire thickness (mm
2
)
Type of wire
TC (1, 2, 3)
Stranded wire: 0.5 to 1.25
Single wire: 0.5 to 1.25
Shielded twisted-pair wire
Solderless Terminal Sizes (For Signal Line Connection)
For better reliability and easier wiring, we recommend using solder-
less terminals for input signals.
Wire
thickness
Model
d2
d2
0.5 mm
2
AI 0.5-8 WH
1.00
2.60
0.75 mm
2
AI 0.75-8 GY
1.20
2.80
1 mm
2
AI 1-8 RD
1.40
3.00
1.5 mm
2
AI 1.5-8 BK
1.70
3.50
(Manufacturer: Phoenix Contact)
Wiring Procedure for Output and Control Circuit
Terminals
1, 2, 3... 1. Use a thin-slotted screwdriver to loosen the terminal
screws.
2. Insert the wire from underneath the terminal block.
3. Tighten the terminal screws firmly.
Thin-slotted screwdriver
Control circuit
terminal block
Blade of
screwdriver
Strip the end for
7 mm if no sold-
erless terminal is
used.
Wire
3.5 mm
max.
Blade thickness
0.6 mm max.
Do not solder.
d1 dia.
d2 dia.
