Mitsubishi Electric MELDAS C6 Interface Manual page 171

Device
SM16 Temperature rise warning
Device
R41 Temperature
warning cause
Control unit
internal temperature
Communication
terminal ambient
temperature
SM16
R41 Bit0
R41 Bit1
The device output is turned ON when:
• The internal temperature of control unit rises over 80 ° C or the ambient temperature of
communication terminal rises over 70 ° C.
The device output is turned OFF when:
• The internal temperature of control unit drops below 80 ° C and the ambient temperature of
communication terminal drops below 70 ° C.
PLC bit select parameter
#
6449 Control unit overheat
bit7 detection
6449 Communication terminal
bit6 overheat detection
CAUTION
When setting the parameter (#6449/bit6, 7) not to check the overheat, the control unit and the
communication terminal may not be controlled because of overheat.
In such case, axis runaway may cause a machine breakage, an accident resulting in injury or
death, or device breakage.
To prevent the serious results, ordinarily set the parameters so that the overheat check is valid.
[Related signal]
(1) Temperature rise warning (SM16)
6. EXPLANATION OF INTERFACE SIGNALS
6.2 PLC Input Signals (Data Type: R***)
Signal name
Signal name
Bit0 Control unit overheat
Bit1 Communication
terminal overheat
Items
Designate whether to detect the
control unit overheat alarm or not.
Designate whether to detect the
communication terminal overheat
alarm or not.
6-2-11
Details
OFF: Normal
ON: Overheat
Details
OFF: Normal
ON: Overheat
OFF: normal
ON: Overheat
Details
80°C Alarm occurrence
temperature
70°C
Alarm occurrence
temperature
Setup range (unit)
0: Detection valid
1: Detection invalid
0: Detection valid
1: Detection invalid