7
5 Installation
5.1 Size specification
9 1 . 7
3 2
90
99.2
4 0
R U N
E R R
V C - 4 A D
V E I C H I
24+
V1+
I1+
V2+
I2+
V3+
I3+
V4+
I4+
VI4-
VI3-
VI2-
VI1-
PG
COM
Figure 5-1 External dimensions and mounting hole dimensions (unit: mm)
5.2 Installation method
The installation method is the same as that for the main module, please refer to the VC Series Programmable Controllers
User Manual for details. An illustration of the installation is shown in Figure 5-2
.
35mm wide DIN slot
Press back the DIN slot snap
IN
0UT
PWR RUN ERR
00
01
02
03
04
05
06
07
10
11
12
13
14
15
16
17
00
01
02
03
04
05
06
07
10
11
12
13
14
15
VC1-1614MAR
VEICHI
RU N
ER R
VC-4AD
VEICHI
24
+
V1
+
I1
+
PG
COM
VI
1-
V2
+
I2
+
VI
2
-
V3
+
I
3+ VI
3-
V
4+
I4
+
VI
4-
Figure 5-2 Fixing with DIN slot
6 Operational checks
6.1 Routine checks
1. Check that the analogue input wiring meets the requirements (see 1.5 Wiring instructions).
2. Check that the VC-4AD expansion connector is reliably plugged into the expansion connector.
3. Check that the 5V and 24V power supplies are not overloaded. Note: The power supply for the digital part of the VC-4AD
comes from the main module and is supplied via the expansion interface.
4. Check the application to ensure that the correct operating method and parameter range has been selected for the application.
5. Set the VC main module to RUN.
6.2 Fault checking
If the VC-4AD is not running properly, check the following items.
●Checking the status of the main module "ERR" indicator.
blinking: check whether the expansion module is connected and whether the configuration model of the special module is the
same as the actual connected module model.
extinguished: the extension interface is correctly connected.
●Check the analogue wiring.
Confirm that the wiring is accurate and can be wired as shown in Figure 1-5.●Check the status of the module's "ERR" indicator
Lit: 24Vdc power supply may be faulty; if 24Vdc power supply is normal, the VC-4AD is faulty.
