Delta CT2000 Series User Manual page 293

Chapter 12 Description of Parameter SettingsCT2000 Series
 It is used to prevent self-cooled motor overheats under low speed. User can use electronic thermal
relay to limit driver's output power.
Electronic Thermal Characteristic for Motor 1

Electronic Thermal Characteristic for Motor 2

Settings
 The parameter is set by the 150% of motor rated current and the setting of Pr.06-14 and Pr.06-28 to
prevent the motor damaged from overheating. When it reaches the setting, it will display
"EoL1/EoL2" and the motor will be in free running.
Heat Sink Over-heat (OH) Warning

Settings
 When this parameter is set as 110.0℃，the drive will trigger error and stop instead of warning once
the temperature reaches 110.0℃
 For Frame C and above, when IGBT temperature reached (06-15 setting minus 15℃), heatsink fan
will accelerate to the highest speed. When IGBT temperature is lower than (06-15 setting minus 35
℃), and Cap temperature is lower than (OH2 warning level minus 10℃), heatsink fan will retrieve
to its setting speed.
 If the setting of this parameter is lower than 35℃, the adjustment level will be still 35℃.
 Stall Prevention Limit Level
Settings
 When operation frequency is larger than Pr.01-01; e.g. Pr06-03=150%, Pr. 06-04=100% and Pr.
06-16=80%:
Calculate the Stall Prevention Level during acceleration: Pr.06-03 * Pr.06-16=150x80%=120%.
Calculate the Stall Prevention Level at constant speed: Pr.06-04 * Pr.06-16=100x80%=80%.
1: Standard motor (fan runs with the axel synchronously)
2: Disable
30.0~600.0 sec
Operation
time(min)
5
4
3
2
1
0 20 40 60 80100120140160180200
0.0~110.0℃
0~100% (Refer to Pr.06-03, Pr.06-04)
12.1-06-6
Factory Setting: 60.0
60Hz or more
50Hz
10Hz
5Hz
Load
factor (%)
Factory Setting: 85.0
Factory Setting: 50