Beckhoff EP7402-0057, Руководство пользователя

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CoE objects
EP7402-0057 47 Version: 1.3
7.2 Object descriptions
7.2.1 Parameterization objects
Adjust these parameters during commissioning.
Index 8020: STM Motor Settings Ch. 1
Index 8030: STM Motor Settings Ch. 2
Access rights: read/write
Subindex
(hex)
Name Description Unit Data type Default
value
01 Peak current If the motor current exceeds this value, the output stage of the
affected channel is disabled and the diagnostic bit "Channel n
short circuit" is set. mA UINT 1000
dec
02 Rated current The rated current of the motor. See motor data sheet. This pa-
rameter is used for the I
2
T calculation of the motor. (Thermal
overload protection)
mA UINT 1000
dec
03 Rated voltage The rated voltage of the motor. See motor data sheet. 0.01 V UINT 2400
dec
04 Phase to phase resis-
tance The ohmic resistance between two motor phases. 0.01 Ω UINT 100
dec
09 Start velocity Threshold value: the motor is kept in align state if the value of
the output variable “velocity” is lower than this value.
If this value is too low, a commutation error may occur.
°/s UINT 3000
dec
13 Mechanical to electri-
cal ratio Set this parameter to the number of pole pairs of the motor
multiplied by the gear ratio.
The value for this parameter can also be determined experi-
mentally [ } 36] .
- UINT 1
14 Rated velocity 5000
dec
16 I2T warn level I
2
T limit monitoring: Warning threshold.
If the I
2
T value exceeds this threshold, the “Channel n overload
I2T warning” bit is set.
% USINT 80
dec
18 I2T error level I
2
T limit monitoring: Error threshold.
If the I
2
T value exceeds this threshold, the “Channel n overload
I2T error” bit is set. The motor is switched torqueless.
% USINT 110
dec
19 Motor thermal time
constant I
2
T limit monitoring: Thermal time constant.
The thermal time constant can be found in the motor
datasheet.
0.1 s UINT 15
dec