1
VC1-2424MAM-4TC PLC Quick Reference Manual
This manual provides a quick on-site access for users to the information of the
design, installation, connection and maintenance of the VC1-2424MAM-4TC
series Model PLC. It briefly describes the hardware specifications, features and
usage of the PLC. There are also brief descriptions of associated accessories,
answers to frequently asked questions, and other information for easy reference.
For more detailed product information, please refer to the "VC Series
Programmable Controller Manual" and "AutoStudio Programming Software
Manual" issued by VEICHI. Please consult with the supplier if needed. Users
can also download PLC related technical information or give feedback on PLC
related questions on
1 Production Introduction
1.1 Module Description
Module description is shown below:
VC 1 - 24 24 M A M -4TC
Non-sta nda rd p ro du ct
Spec ial func tio n add ed/ redu ced on th e st and ard p rodu ct s
E.g .: VC 1-24 24 MAM-4T C in di cat es in teg rated th ermoco up le
Outp ut mod e
R: Rel ay ou tp ut
T: Tra nsist or o utp ut
M: Re lay an d t ran sist or mix ed ou tpu t
N: No out pu t
Power in pu t mo de
D: 2 4V DC p ower in pu t
A: 2 20 V AC po wer i np ut
N: No power i np ut
Mo du le ty pe
M: PLC mai n mo du le
E: PLC ex pan sio n mo du le
Numbe r of ou tp ut po in ts
(here t ak e 24 p oin ts as an ex ample )
Series n umb er
1S: Sing le mod ule ;
1: Eco no mical mod ul e;
2: Gene ral mod ul e;
3: Hig h-pe rforman ce mo du le;
3M : Mot io n c on troll ed mod ule ;
5: Bu s co nt ro ll ed mo du le.
VC; VEICHI prog ra mmab le con trol ler
Numbe r of in pu t p oi nt s
(here t ak e 24 p oin ts as an ex ample )
Dear Customers:
Thanks for choosing the products of Suzhou VEICHI Electric Technology Co.,
Ltd. In order to continuously improve our products and services, we kindly
request your feedback after using our product for one month. Please take a
moment to fill out the Product Feedback Form and send it to our Customer
Service Center via mail or fax. As a token of our appreciation, we will send you
a special souvenir upon receiving the completed form. We also value your
suggestions on how we can enhance the quality of our products and services. If
you provide us with valuable advice, we will reward you with a special gift.
Customer Service Center, Suzhou VEICHI Electric Technology Co., Ltd.
Product Feedback Form
User name
Tel
Address
Postal code
Product name &
model
Installation
date
Machine code
Appearance or
structure
Performance
Package
Materials
Quality in use
Comments or
suggestions
1.2 Appearance and Structure
The appearance and structure of the main module VC1 is shown below (take
VC1-2424MAM-4TC as an example):
VC1-2424MAM-4TC adopts RS232 and Mini DIN8 socket, 1 channel of
RS485 and Type-C USB interface. The right expansion module interface is used
to connect the expansion module, the left one is used to connect the expansion
communication module. There are two options for the mode switch, ON/OFF,
and one RS485 terminal resistor with a resistance of 120 Ω (DIP No. 1). For
output terminals, the first 8 are transistor outputs, the last 16 are relay outputs
and 4 integrated thermocouple-type temperature inputs.
1.3 Terminal Introduction
Terminal arrangement for 24-point main module
Input terminal:
Output terminal:
Y0~Y7 are transistor outputs and Y10~Y27 are relay outputs.
2 Power Supply Specification
The specifications of the built-in power supply of the main module and those
that the main module can supply to expansion modules are shown as below.
Item
Unit Min.
Typ.
Max.
Description
Input voltage range Vac
85
220
264
Voltage range for proper start
and operation
Input current
A
/
/
1.5
90Vac input, full-load output
Rated
output
current
5V/GND mA
/
1500
/
The sum power of 5V/GND
and 24V/GND shall not exceed
30W.
24V/GND
mA
/
1000
/
24V/COM
mA
/
/
3 Switch Input and Output Characteristics
3.1 Input Characteristics and Signal Specifications
Input characteristics and signal specifications are show in the following table.
Item
High-speed input
terminal X0~X7
General input terminal
Signal input method
Source/sink mode, selectable via "S/S" terminals
Electrical
parameters
Detection
voltage
24Vdc
Input
impedance
1KΩ
4kΩ
Input ON
External circuit
resistance < 400Ω
External circuit resistance <
400Ω
Input OFF
External circuit
resistance > 24kΩ
External circuit resistance >
24kΩ
Filter
function
Digital
filter
X0 to X7 are of digital filter function. Filtering time can be
programmed in 0~60ms.
Hardware
filter
Input terminals (other than X0~X7) are of hardware filter
mode. Filtering time: about 10ms.
High speed function
X0~X7: high-speed counting, interruption, and pulse
catching
X0 and X1: up to 50kHz counting frequency
X2~X7: up to 10kHz counting frequency
The sum of input frequency should be less than 60kHz
Common terminal
Only one: S/S
The input terminal of the counter should correspondingly abide by its upper
frequency limit. Any frequency higher than that may result in incorrect counting
or abnormal system operation. Make sure that the input terminal arrangement
is reasonable and choose the proper external sensors.