AKD-C Installation | 9 Electrical Installation
9.8.2 Capacitor Modules (X14)
KCM
modules (
K
OLLMORGEN
C
apacitor
M
odules) absorb kinetic
energy generated by the motor when it is operating in generator mode.
Normally, this energy is dissipated as waste via regen resistors. KCM
modules, however, feed the energy they have stored back into the DC
Bus link as and when it is required.
Assembly information: see regional accessories manual or KCM instruc-
tion manual.
Dimensions (HxWxD) : 300x100x201 mm
KCM-S
S
aves energy: The energy stored in the capacitor module during generative braking is
available the next time acceleration happens. The module’s inception voltage is cal-
culated automatically during the first load cycles.
KCM-P
P
ower in spite of power failure: If the power supply fails, the module provides the
servo amplifier with the stored energy that is required to bring the drive to a standstill
in a controlled manner (this only applies to the power supply voltage;
battery-back the 24 V supply separately).
KCM-E
E
xpansion module for both applications. Expansion modules are available in two
capacitance classes.
The KCM modules may only be connected to AKD with 400/480 V rated voltage. Mounting,
installation, and setup instructions can be found in the Instructions Manual of the KCM Mod-
ules.
DANGER
High DC Voltage up to 900 V
There is a danger of serious personal injury or death by electrical shock or
electrical arcing. It can take over an hour for the modules to self-dis-
charge.
Switch off (disconnect) the line voltage. You must only work on the con-
nections when the system is disconnected.
Check the state of charge with a measuring device that is suitable for a
DC voltage of up to 1,000 V.
When measuring a voltage of over 50 V between the DC+/DC- ter-
minals or to ground, discharge the modules (see (
9.8.2.1 Technical Data
Storage-
Capacity
Rated
Supply
Voltage
Peak
Supply
Voltage
Power
Protection
Class
Inception
Voltage
Weight
Type
[Ws]
[V DC]
[V DC]
[kW]
[V DC]
[kg]
KCM-S200
1600
max. 850
max. 950
(30s in 6
min)
18
IP20
evaluated
6.9
KCM-P200
2000
470
6.9
KCM-E200
2000
-
4.1
KCM-E400
4000
-
6.2
66
Kollmorgen | kdn.kollmorgen.com | February 2018
