Table B-4 Digital output user interface
Network name
Type
Function
Remarks
Y10
Output
Relay user output 0
Dry contact
Support 24Vdc only
COM0
Output common terminal
Common terminal
Common terminal of first set of relays
Y11
Output
Relay user output 1
Dry contact
Support 24Vdc only
Y12
Output
Relay user output 2
Dry contact
COM2
Output common terminal
Common terminal
Common terminal of second set of relays
Description of special load usage:
◆
Contact protection when inductive load is used
When inductive load is used in the product, it will produce very large back electromotive force between
contacts between when it ceases as well as arc discharge, which may cause the contact failure of
contacts or contact sinking, significantly shortening the service life of contacts. It is recommended to
use products with built-in protection loop. If load without internal protection loop is used, use external
shock protection circuit to reduce noise and prolong the life of the product.
Relay DC loop (Y00/Y01/Y02/COM1)
Connect fly-wheel diodes in parallel on load. Diodes need to meet the following requirements:
①
Reverse voltage: 5~10 times of load voltage;
②
Forward current: greater than load current.
Inductive load
Fly-wheel diode
◆
Contact protection for using capactive load
When using capacitive load, if electric shock occurs, surge current 20 to times greater than the
conventional current may flow through the circuit. Note that the surge current cannot exceed the
current value at the maximum load of the resistance load.
In addition, capacitors and other capacitive loads may be present under the load of electronic circuits
such as inverters.
4) Transistor output specification
Table B-5 Basic output specification of transistor
Item
Specification
Output channel
10
Output connection mode
Aviation plug, pluggable
Output type
Transistor, high side output
Output mode
Source type
Output voltage class
5V~24V (-5%~20%)
The maximum leakage
current when OFF
Below 0.5mA
ON response time
Less than 0.5ms (hardware response
time)
OFF response time
Less than 0.5ms (hardware response
time)
Maximum load
Resistive
load
0.5A/point
Inductive
load
12W/DC24V (in total)
Lamp load
2W/DC24V (in total)
Isolation method
Light coupling isolation
Table B-5 User interface of transistor output
Network
name
Type
Function
Remarks
Y01~02
Output
First set of user
output 1~2
Source output, high
level effective
COM2
Output
common
terminal
Common terminal
Transistor output
common public
terminal 2
Y13~15
Output
Second set of
user output 3~5
Source output, high
level effective
COM2
Output
common
terminal
Common terminal
Transistor output
common public
terminal 2
Description of special load usage:
◆
Contact protection when inductive load is used
When inductive load is used in the product, it will produce very large back electromotive force between
contacts between when it ceases as well as arc discharge, which may cause the contact failure of
contacts or contact sinking, significantly shortening the service life of contacts. Thus, to prolong the life
of the product, connect fly-wheel diodes in parallel on load if necessary.
Diodes need to meet the following requirements:
①
Reverse voltage: 5~10 times of load voltage;
②
Forward current: greater than load current.
Programmable Controller
Output Contact