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KCM Capacitor Modules
2.6
Setup
Prerequisite for the following instructions:
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Proceed as follows (do this in the order specified):
1.
2.
3.
4.
5.
2.7
Discharging KCM modules
The aids supplied with each module (plug-in bridge/connecting cables) allow you to
discharge the modules safely.
When the charging LED on top of the modules flashes, the capacitors are charged.
Please note, however, that the LED does not safely indicate the real state of discharge,
as it is not supervised for failures.
DANGER
DC Bus link terminals in servo systems carry high DC voltage of up to
900 V. Touching the terminals while they are carrying voltage is extreme-
ly dangerous. Switch off the line voltage (disconnect the system). You
must only work on the connections when the system is disconnected.
Check the state of charge of the capacitors with a measuring device that
is suitable for a DC voltage of up to 1,000 V. Wait until the voltage mea-
sured between the DC+/DC- terminals or to ground dropped below 60 V.
It can take over an hour for the modules to self-discharge. If you cannot
wait for the duration of the self-discharge time, you must force the modu-
les to discharge. You must follow the procedure described below when
forcing the modules to discharge.
For your own safety, proceed as follows when forcing the modules to discharge:
1. Switch off (disconnect) the line voltage and 24V supply.
2. Discharge the modules (approximately 70 s per module):
3. Measure the +DC/-DC voltage and wait until voltage dropped below 60 V.
4. Perform the scheduled task (e.g., cleaning, maintenance, or uninstallation).
5. Remove the plug-in bridge respectively the connection cable before recommissioning.
English - 18
08/2014
Properly disconnected, grounded system
KCM modules are assembled and wired in the switching cabinet
Discharge aids (plug-in bridge, connecting cables) are removed
KCM-P: The power failure monitoring must be parameterized correctly in
the servo amplifier
KCM-S: The load that leads to the activation of the servo amplifier's brake
chopper during braking must be connected.
Switch on the 24V supply voltage of the servo amplifier.
Switch on the line voltage, after the 24V boot process has finished.
The KCM-P begins the charging process at approx. 470 V DC; the LED flashes.
Enable the servo amplifier and operate the driving profile that causes the
brake chopper to respond
The KCM-S determines the chopper threshold and begins to charge; LED flashes.
KCM-S/-P: Insert the plug-in bridge in the screw terminals (black-1 <=> gray-2)
on the base of the modules. Leave the plug-in bridge in place.
KCM-E:
Bridge the X2/X3 connector with a connecting cable on the top of
the module. Leave the connecting cable in place.
Kollmorgen
Instruction Manual
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