Lenze Drive PLC Developer Studio 9300 Servo PLC (V8.x) - Manual (Page 87)

9300 Servo PLC
System blocks
2.12 MCTRL_MotorControl (node number 131)
2−73
L
9300 Servo PLC EN 5.0
2.12.17.8 OH − heatsink temperature monitoring (fixed)
This monitoring function protects the drive controller.
Error Monitoring function System variable Possible responses
No. Display TRIP Message Warning FAIL−QSP Off
x050 OH Heatsink temperature (fixed) MCTRL_bKuehlGreaterSet−
Value_b ·
· Lenze setting
ü Setting possible
MCTRL_bKuehlGreaterSetValue_b is derived from a comparator with hysteresis. The switch−off
threshold and the hysteresis are fixed:
·
The switch−off threshold is 85 °C
·
The hysteresis is 5 K, i.e. the value for switching on again is 80 ºC.
The following causes can bring about an actuation of the monitoring process:
Cause Remedy
The ambient temperature is too high. Mount a blower in the control cabinet.
The drive controller is overloaded in the arithmetic mean, i. e. overload
and recovery phase exceed 100%.
·
Mount a blower in the control cabinet.
·
Shorten overload phase.
·
Use a more powerful drive controller.