Kollmorgen M-ST-009-2031, Руководство по установке

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Danaher Motion SERVOSTAR Help
40 SERVOSTAR
®
SBD-Series ST/CT Product Family
SERVO STAR Help
Problems with the drive can be through actual faults, bad compensation values installed on the comp-
card, or self-inflicted by misunderstanding of the system’s operation. If the system has been running and
is experiencing faults, review the fault-codes in the following section.
Be certain that remote inputs (Enable, CW Limit, CCW Limit, External Current Limit, and Torque Hold)
are in the correct and expected state.
A miss wired system, such as a reverse-polarity tachometer or a missing tachometer connection, can
cause many faults.
FAULT MONITORING SYSTEM
The SERVO STAR SBD-Series is constantly monitoring the status of many different components. In
general, the philosophy of the SERVO STAR is to latch all fault conditions so you can readily determine
the source of the problem. When a fault is detected, it is latched, indicated in an LED, and causes a drive
disable. Many faults can be reset by toggling the hardware remote enable input (rising edge sensitivity) or
by depressing the reset switch.
The following is a list of some of the more frequent faults the drive may detect in the unit hardware:
•
Drive Over Temperature: The internal heatsink temperature is monitored for an unsafe
condition (Heat sink over 80 degrees C). The drive eventually cools enough to allow reset of this
condition. More common causes for this fault is excessive loading on the drive and/or operation
in elevated ambient temperature environments.
•
Bus Over Voltage: An over-voltage condition shuts down the drive. This fault occurs mostly
during regen operation where the BUS is raised to higher values than that produced by the power
supply. In such a case, either an external regen resistor is required or the deceleration rate must be
decreased. This fault also occurs if the incoming power supply voltage is excessively high.
•
Bus Under Voltage: There is a jumper internal to the drive to determine the function of this fault
detection circuit. If JP1 is in place (normal shipping state), an under-voltage condition is latched
and shuts down the drive. This fault normally occurs when the incoming line voltage drops out or
a fault occurs in the power supply. If JP1 is removed, the drive does not look for this fault
condition. A special power-up circuit is provided to reset an under voltage fault after power is
first applied to allow appropriate power sequencing.
•
Power Stage Fault (Over Current): Hardware circuitry monitors load short-circuit, transistor
failure, transistor over temperature, gate drive power and instantaneous over-current to latch this
fault condition. The most common reason for this fault is a shorted motor lead external to the
drive. Try removing the motor armature connections from the drive and see if the problem exists.
If it does, replace the drive. If it does not, correct the short.
•
Over Speed Fault: The drive continuously monitors the actual (feedback) speed. If the motor
speed exceeds the typical value of 20% above the motor’s rated speed, the drive is disabled. This
normally occurs when there is an improperly-tuned system and the load overshoots its
commanded speed or the tachometer or armature is wired in the wrong polarity causing a
positive-feedback run-away condition.
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