Beckhoff KL8001, Документация

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Access from the user program
KL8001 and KL9060 35 Version: 2.0.0
PR34, PR40, PR46: Switch-on threshold
A switch-on protection phase is maintained before switching on again after the power terminal has switched
off the motor because of overload. This time corresponds to the
tripping class [
}
37] . In other words, with a
tripping class of 50 the motor can only be switched on again after a period of 50 seconds. This time can be
shortened by means of this register, which can be useful under some circumstances with large tripping
classes.
The value to be entered is calculated in accordance with the following formula:
Example:
Switch-on time = 10 seconds, tripping class = 50 seconds
(1 - 10 sec / 50 sec) x 65535 = 52428
The switch-on threshold to be entered then is 0xCCCC (52428
dec
).
PR35: L1 overvoltage threshold*
If the mains voltage at L1 exceeds the overvoltage threshold stored (with a resolution of 0.1 V) in register
PR35, bit
SW.7 will be set in the status word [ } 42] .
*) The voltages of the three phases are measured with reference to an artificial star point.
PR36: L1 undervoltage threshold*
If the mains voltage at L1 falls below the undervoltage threshold stored (with a resolution of 0.1 V) in register
PR36, bit
SW.4 will be set in the status word [ } 42] .
*) The voltages of the three phases are measured with reference to an artificial star point.
PR37: Overload threshold L1
If the current in phase L1 exceeds the overload threshold stored in register PR37 (with a resolution of
0.01 A), the
ESB.0 bit will be set in the extended status byte [
}
31] while the Overload LED will flash at about
5 Hz. If you set the overload threshold in register PR37 below the rated current, the motor can be switched
off early in the event of excessive rated load, in order to prevent damage.
PR38: Underload threshold L1
If the current in phase L1 falls below the underload threshold stored in register PR38 (with a resolution of
0.01 A), the
ESB.1 bit will be set in the extended status byte [
}
31] while the Overload LED will flash at about
2 Hz. If you set the value in register PR38 below the rated load that has been set, then the motor can be
switched off in the event of, for instance, a broken shaft, in order to avoid more serious damage.
PR39
See PR33 [
}
34] .
PR40
See PR34 [
}
35] .
PR41: L2 overvoltage threshold*
If the mains voltage at L2 exceeds the overvoltage threshold stored (with a resolution of 0.1 V) in register
PR41, bit
SW.8 will be set in the status word [ } 42] .
*) The voltages of the three phases are measured with reference to an artificial star point.