Eaton PowerXL DM1 Series Applications Manual page 88

Chapter 5 - Fan control application
Table 32. HVAC parameters (Cont.).
Broken belt Fnom torque
P8.3.2 b
Minimum value: 10.00%
Description: The torque limit can be set between 10.0-150.0 % x TnMotor. This parameter gives the value for the minimum torque allowed when the
output frequency is at or above the field weakening point. If you change P1.6, nominal motor current, this parameter is automatically
restored to the default value.
Broken belt F0 torque
P8.3.3 b
Minimum value: 5.00%
The torque limit can be set between 5.0–150.0 % x TnMotor. This parameter gives the value for the minimum torque allowed at zero
Description:
frequency. If you change the value of P1.6, nominal motor current, this parameter is automatically restored to the default value.
Broken belt time limit
P8.3.4 b
Minimum value: 2.00 s
Description: This time can be set between 2.00 and 600.00 seconds. This is the time allowed for an fault state to exist. An internal up/down
counter counts the accumulated underload time. If the underload counter value goes above this limit, the protection will cause a trip
according to protection parameter. If the drive is stopped, the counter is reset to zero.
Parameter value can only be changed after the drive has stopped.
Parameter value will be set to be default when changing macros.
b
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POWERXL DM1 SERIES VARIABLE FREQUENCY DRIVES MN040049EN—September 2021 www.eaton.com
Maximum value:
Torque
Fnom Torque
F0 Torque
5 Hz
Maximum value:
Maximum value:
Time Counter
Trip Area
Underload
No Underload
150.00% Default value:
Underload Area
f
Field Weakening
Point V/Hz Ratio
150.00% Default value:
600.00 s Default value:
Trip/Warning
Broken Belt
Protection
Time
ID 318
50.00%
ID 319
10.00%
ID 320
20.00 s