Suitable limit values must be determined and calculated on the basis of the system and motor data. As long as the motor is operated without loads, the default settings do not need to be changed.
The maximum motor current can be set with the parameter CTRL_I_max.
The maximum current for the "Quick Stop" function can be limited with the parameter LIM_I_maxQSTP and for the "Halt" function with the parameter LIM_I_maxHalt.
oUse the parameter CTRL_I_max to set the maximum motor current.
oUse the parameter LIM_I_maxQSTP to set the maximum motor current for the "Quick Stop" function.
oUse the parameter LIM_I_maxHalt to set the maximum motor current for the "Halt" function.
The motor can be decelerated via a deceleration ramp or the maximum current for the functions "Quick Stop" and "Halt".
The device limits the maximum permissible current on the basis of the motor data and the device data. Even if the value entered for the maximum current in the parameter CTRL_I_max is too high, the value is limited.
|
Parameter name HMI menu HMI name |
Description |
Unit Minimum value Factory setting Maximum value |
Data type R/W Persistent Expert |
Parameter address via fieldbus |
|---|---|---|---|---|
|
(ConF) → (drC-) (iMAX) |
Current limitation. During operation, the actual current limit is one of the following values (whichever is lowest): - CTRL_I_max - _M_I_max - _PS_I_max Limitations caused by I2t monitoring are also taken into account.
Default: _PS_I_max at 8 kHz PWM frequency and 230/480 V mains voltage Type: Unsigned decimal - 2 bytes Write access via Sercos: CP2, CP3, CP4 In increments of 0.01 Arms. Modified settings become effective immediately. |
Arms 0.00 - 463.00 |
UINT16 R/W per. - |
Modbus 4376 IDN P-0-3017.0.12 |
|
(ConF) → (FLt-) (qcur) |
Current for Quick Stop. This value is only limited by the minimum/maximum value range (no limitation of this value by motor/power stage).
In the case of a Quick Stop, the current limit (_Imax_act) is one of the following values (whichever is lowest): - LIM_I_maxQSTP - _M_I_max - _PS_I_max
Further current limitations caused by I2t monitoring are also taken into account during a Quick Stop.
Default: _PS_I_max at 8 kHz PWM frequency and 230/480 V mains voltage Type: Unsigned decimal - 2 bytes Write access via Sercos: CP2, CP3, CP4 In increments of 0.01 Arms. Modified settings become effective immediately. |
Arms - - - |
UINT16 R/W per. - |
Modbus 4378 IDN P-0-3017.0.13 |
|
(ConF) → (ACG-) (hcur) |
Current for Halt. This value is only limited by the minimum/maximum value range (no limitation of this value by motor/power stage).
In the case of a Halt, the current limit (_Imax_act) is one of the following values (whichever is lowest): - LIM_I_maxHalt - _M_I_max - _PS_I_max
Further current limitations caused by I2t monitoring are also taken into account during a Halt.
Default: _PS_I_max at 8 kHz PWM frequency and 230/480 V mains voltage Type: Unsigned decimal - 2 bytes Write access via Sercos: CP2, CP3, CP4 In increments of 0.01 Arms. Modified settings become effective immediately. |
Arms - - - |
UINT16 R/W per. - |
Modbus 4380 IDN P-0-3017.0.14 |
The parameter CTRL_v_max can be used to limit the maximum velocity.
oUse the parameter CTRL_v_max to set the maximum velocity of the motor.
NOTE:
Values for positions, velocities, acceleration and deceleration are specified in the following user-defined unit:
ousr_p for positions
ousr_v for velocities
ousr_a for acceleration and deceleration
|
Parameter name HMI menu HMI name |
Description |
Unit Minimum value Factory setting Maximum value |
Data type R/W Persistent Expert |
Parameter address via fieldbus |
|---|---|---|---|---|
|
(ConF) → (drC-) (nMAX) |
Velocity limitation. During operation, the velocity limit is one of the following values (whichever is lowest): - CTRL_v_max - M_n_max Type: Unsigned decimal - 4 bytes Write access via Sercos: CP2, CP3, CP4 Modified settings become effective immediately. |
usr_v 1 13200 2147483647 |
UINT32 R/W per. - |
Modbus 4384 IDN P-0-3017.0.16 |
