99
(b) Check the external mechanical structure and installation;
(3) P0-74 the default value of locked rotor alarm time is as follows:
P0-74 (/ms) default parameter
P0-74 is 0, the anti-stall alarm is not opened by default, and users can configure it according to their own
needs.
(3) P3-38/P3-39 are only used as the comparison value of anti locked rotor alarm, P3-28/P3-29 are the
internal torque limit of motor in actual operation.
4.8.2 Torque limit
1. Internal torque limit
Internal Forward
torque limit
Internal reverse
torque limit
1. if this parameter value is less than external torque limit value, the final limit value is this parameter.
2. The unit is percent of the motor rated torque; the default value is 300%. The real max output torque is
limited by motor overload times.
2. External torque limit (via input signal)
Forward external
torque limit
Reverse external
torque limit
The unit is the percent of motor rated torque; the default value is 300%.
The necessary
condition to use
forward external
torque limit
Range 0000-0014, can be
distributed to other input
terminals through P5-25.
The necessary
condition to use
reverse external
torque limit
Range 0000-0014, can be
distributed to other input
terminals through P5-26.
3. Relationship
The following are the relationship of internal torque limit, external torque limit, P-CL, /N-CL.
The smaller one of internal forward
torque limit and external forward torque
limit
The smaller one of internal reverse
torque limit and external reverse torque
limit
4. Output torque up to limit value signal
Output signal when motor
output torque up to P3-28,
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