SMC Networks HRSH090-A, Руководство по эксплуатации

Страница: 40 / 192

HRX-OM-R026
Chapter 3 Transport and Setting Up
3.3 Installation HRSH Series
3-20
3.3.6 Wiring of external switch signal input
This product can be monitored by sampling the signal of the external switch
prepared by the customer.
Table 3-7 Power supply, contact specifications
Name Terminal NO. Specification
Power supply output
5, 6, 7 (DC 24V)
DC 24V ±10% 500mA MAX

1
13,14, 15 (24V COM)
Contact input signal 1
3 (Contact input signal 1)
NPN open collector output
PNP open collector output
(Refer to the operation manual
communication function.)
11 (Common of contact output signal 1)
Contact input signal 2
4 (Contact input signal 2)
12 (Common of contact output signal 2)

1: To use the power of the device, the total load current must be 500mA or less.
If the load is 500mA or more, the internal fuse will be cut to protect the product and the alarm [AL21 DC
line fuse cut] will be generated. Refer to Chapter 6 for handling of alarms.
One external switch can be connected to contact input signal 1 and one to
contact input signal 2. (Two in total) The external switch cannot be
connected to the contact input signal 1 depending on the communication
mode.
Table3-9 External switches used in examples
.
Table 3-8 Sets external switch
Communication mode

1 Contact input signal 1 Contact input signal 2
Local mode O O
SERIAL mode
MODBUS
O O
Simple
communication
protocol 1
O O
Simple
communication
protocol 2
x O
DIO mode
x O

1: Refer to the Communications Operation Manual for more details of each mode.
Local mode: Mode allowing the product to be operated by the operation panel. (Default setting)
SERIAL mode: Mode allowing the product to be operated by serial communication.
DIO mode: Mode allowing the product to be operated by the contact input/output communication.

Example of connection
As an example of connection of an external switch, the connecting method is
shown below using the SMC flow switch (NPN, PNP).
This chapter illustrates examples of wiring
Table3-9 External switches used in examples
Name Manufacturer Part NO. Out put type
Current
consumption
Flow switch SMC
PF3W721□-□□-A□(-M)
NPN open collector output 50mA or less
PF3W721□-□□-B□(-M)
PNP open collector output 50mA or less
Be sure to shut off the breaker of the facility power supply (the user’s
machine power supply) before wiring.