Thermal Protection - TDE MACNO MINIOPD EXP User Manual

2.3.2 THERMAL PROTECTION

Name
MOT_THERM_PRB_SEL
MOT_TEMP_MAX
DRV_THERM_PRB_SEL
MOT_PRB_RES_THR
PRC_MOT_DO_TEMP_THR
KP_MOT_THERM_PRB
KP_DRV_THERM_PRB
DRV_TEMP_MAX
DRV_START_TEMP_MAX
DRV_DO_TEMP_THR
EN_MOT_THERMAL_ALL
MOT_THERM_CURV_SEL
DRV_TEMP
MOT_TEMP
REG_CARD_TEMP
MOT_PRB_RES
PRC_DRV_I_THERM
2.3.2.1 MOTOR THERMAL PROTECTION
.
Parameters P70 (thermal current as a % of the rated motor current), P71 (motor thermal constant in
seconds) and the current delivered by the drive are used to calculate the presumed operating
temperature of the motor considering an ambient temperature equal to the permitted maximum; the
losses are evaluated with the square of the absorbed current and filtered with the motor thermal
constant. When this value exceeds the maximum thermal current set in P70 (value proportional to the
square of this current) the thermal protection cuts in, enabling logic output o.L.1 and alarm A06. The
action taken may be programmed via connection C32 and by enabling alarm A06:
If A06 is disabled, no action will be taken.
If A06 is enabled, action will depend on C32:
•
C32 = 0 (default value) the thermal alarm will cut in and reduce the current limit to match
the motor thermal current.
•
C32 = 1 the thermal alarm cuts in and stops the drive immediately.
42
Description
C46 - Enable motor thermal
probe management
(PTC/NTC)
P91 - Maximum motor
temperature (if read with
PT100)
C57 - Enable radiator heat
probe management
(PTC/NTC)
P95 - Motor NTC or PTC
resistance value for alarm
P96 - Motor thermal logic
output 14 cut-in threshold
P115 - Multiplication factor for
motor PTC/NTC/PT100
analog reference value
P117 - Multiplication factor for
radiator PTC/NTC analog
reference value
P118 - Max. temperature
permitted by radiator
PTC/NTC
P119 - Max. temperature
permitted by radiator
PTC/NTC for start-up
P120 - Radiator temperature
threshold for logic output o.15
C32 - Motor thermal switch '
Block drive ?
C33 - Auto-ventilated thermal
motors
D25 - Radiator temperature
reading
D26 - Motor temperature
D40 - Regulation card
temperature
D41 - Thermal probe
resistance
D28 - Motor thermal current
Min Max Default
Range
0 No
1 PTC
1
2 NTC
3 I23
4 KTY84-130
0.0 150.0 130
0 1 1
0 19999 1500
0.0 200.0 100 % PRC_MOT_I_THERM
0.00 200.00 100
0.00 200.00 100
0.0 150.0 90
0.0 150.0 75
0.0 150.0 80
0 1 1
Range
0
1 0
2
3
0
0
0
0
-100 100 0
UM Scale
1
°C 10
1
Ohm 1
40.96
163.84
163.84
°C 10
°C 10
°C 10
1
1
°C 16
°C 16
°C 16
Ohm 1
% soglia All 40.96