Broken Belt - WEG CFW501 V1.8X Programming Manual

HVAC Functions

18.4 BROKEN BELT

This parameter group allows the user to configure the broken belt operation detection.
The broken belt detection is intended to avoid the motor driven by frequency inverter to operate empty, i.e., to a
mechanical problem between the motor and load, it continues to operate. This is done by detecting the operation
speed in conjunction with the motor torque.
P1046 – Broken Belt Detection Configuration
Adjustable
Range:
Properties:
Access groups
via HMI:
Description:
This parameter defines how the broken belt detection functionality will go act in the CFW501 frequency inverter.
P1046
0 It defines will not be done the broken belt detection.
It defines the broken belt detection will be enabled and only will generate the alarm message "A0768: Broken belt
1
detected", i.e., the CFW501 frequency inverter will continue control the motor.
It defines the broken belt detection will be enabled and will generate the alarm message "A0768: Broken belt
2 detected" during motor deceleration and the fault "F0769: Broken belt detected" in the CFW501 frequency inverter
after stopping the motor.
P1047 – Broken Belt Detection Speed
Adjustable
Range:
Properties:
Access groups
via HMI:
Description:
This parameter defines the speed above which will be enabling to compare the actual motor torque with the
motor torque for broken belt detection set in P1048.
NOTE!
This parameter can be displayed in Hz or rpm as selection in the indirect engineering unit 4 parameters
(P0516 and P0517):
Set P0516 in 13 (Hz) and P0517 in 1 (wxy.z) for displaying in Hz.
„
Set P0516 in 3 (rpm) and P0517 in 0 (wxyz) for displaying in rpm.
„
18
18-6 | CFW501
0 = Disable
1 = Enable Alarm
2 = Enable Fault
cfg
HVAC
Table 18.2: Description of broken belt detection configuration
0 to 18000
HVAC
Description
Factory 0
Setting:
Factory 400
Setting: