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Chapter 7- Multi-purpose application
POWERXL DM1 SERIES VARIABLE FREQUENCY DRIVES
MN040049EN
—September 2021 www.eaton.com
Table 66. HVAC parameters (Cont.).
P8.3.2
b
Broken belt Fnom torque
ID 318
Minimum value:
10.0%
Maximum value:
150.0%
Default value:
50.0%
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.
P8.3.3
b
Broken belt F0 torque
ID 319
Minimum value:
5.0%
Maximum value:
150.0%
Default value:
10.0%
Description:
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
frequency. If you change the value of P1.6, nominal motor current, this parameter is automatically restored to the default value.
P8.3.4
b
Broken belt time limit
ID 320
Minimum value:
2.00 s
Maximum value:
600.00 s
Default value:
20.00 s
Description:
This time can be set between 2.00 and 600.00 seconds. This is the time allowed for a 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.
a
Parameter value can only be changed after the drive has stopped.
b
Parameter value will be set to be default when changing macros.
Torque
Fnom Torque
F0 Torque
Underload Area
Field Weakening
Point V/Hz Ratio
5 Hz
f
Time Counter
Trip Area
Underload
No Underload
Time
Trip/Warning
Broken Belt
Protection