Danfoss VFD500 Series Manual page 93

Chapter 5 Function code
Default inverter is ―no motor temperature protection. To enable this protection, please confirm that present
motor has a temperature sensor. (PTC means motor sensor,PTC1000 and PTC100 is different motor sensor
type.if your motor have temperature sensor,you need to use our special card to connect PTC1000 or PTC100)
and set temperature sensor type (P24.08) to start motor overheating protection.User can view present motor
temperature through function code R27.07; if motor temperature is greater than motor overheating alarming
threshold (P24.10), numeric output terminal ―25: Motor Overload alarmingis enabled and this signal is used for
instruction; if motor temperature is greater than motor overheating protection threshold (P24.09), inverter will
give an alarm about motor overheating fault (Er. oH3) and start corresponding protection action.
★ Motor overheating fault (Er. oH3) can not be reset immediately until motor temperature drops to a value far
below the protection threshold
Motor temperature
P24.08
sensor type
Motor overheat fault
P24.09
threshold
Motor overheat warning
P24.10
threshold
Motor temperature read
r24.11
P24.12 Off load protection
P24.13 Off load detection level
P24.14 Off load detection time
Off load=unload
If output current is lower than offload detection level (P24.13) and this status continues for offload detection time
(P24.14) when offload detection protection is enabled (P24.12=1)
and inverter is in running mode and not in DC brake, then inverter gives an offload
protection fault (Er. LL) report and stops as the offload protection setting (P24.12)
VFD500 high performance vector control frequency inverter user manual
0:no
1:PT100
2:PT1000
3: KTY84-130
0.0℃～200.0℃
0.0°C～200.0°C
When the motor temperature detected by the
temperature sensor is greater than this value, the
DO terminal output function of function "27:
Motor over temperature warning" is selected.
Unit 0.1℃
temperature detected by the temperature
data
sensor
0:effective 1:ineffective
0.0%-100%
0.000s-60.000s
Display the motor
90
☆
0
☆
120.0℃
☆
90.0℃
- ●
☆
0
☆
10.0%
☆
1.000s