Mitsubishi Electric CC-Link User Manual page 31

5 HANDLING CC-LINK EMBEDDED I/O ADAPTER
Function
Common to overload protection
function, overvoltage protection
function and overheat protection
function
Overload protection function
Overvoltage protection function
Overheat protection function
5 - 4
(4) Precautions for T-branch system configuration
When configuring a T-branch system, use any of the following CC-Link master
modules.
Module type
QJ61BT11
AJ61BT11
AJ61QBT11
A1SJ61BT11
A1SJ61QBT11
Confirm the module version as shown below.
(5) The overload protection function, overvoltage protection function and overheat
protection function are described below.
• CC-Link embedded I/O adapters with overload protection function, overvoltage
protection function and overheat protection function
CC-Link embedded output adapter
CC-Link embedded combined adapter
1. When overcurrent due to an overload continues to exist, this generates heat and the
overheat protection function is activated.
2. These functions are for protecting the adapters' internal elements but not for
external devices.
1. The overload protection function is activated in a load condition of 1 A to 3 A per
point.
2. The overload protection function automatically returns to normal operation when the
load drops to the rated value.
1. This function protects elements from an abrupt surge caused when a coil load is
used.
1. The overheat protection function works in two-point units.
(The points are paired as Y0/Y1, Y2/Y3, etc., and the overheat protector is activated
for two points in a pair simultaneously. If the overheat condition is prolonged, the
heat spreads and other overheat protectors may also be activated.)
2. The actual output voltage oscillates in the range of 0 V to the load voltage only if the
output is ON when the overheat protection function was activated. In this case, the
average voltage during oscillation with the load voltage of 24 V is approximately 7 V.
(No oscillation occurs when the output is OFF.)
To ensure that output turns OFF when the overheat protection function is activated,
use an external load that turns OFF at 7 V or more.
3. The overheat protection function automatically returns to normal operation when the
heat drops.
All versions usable
D or later
D or later
E or later
E or later
Software version
Hardware version
AJ65MBTL1N-16T, AJ65MBTL1N-32T
AJ65MBTL1N-16DT
Description
MELSEC-A
Hardware version
5 - 4