PACMotion™ PSD Installation and User Manual
Section 2
GFK-3168A
September 2020
Product Life Cycle Handling
7
•
Storage only within specified humidity: 5 to 95% relative humidity, no
condensation, class 1K3.
•
Store in accordance with the following duration requirements: Less than 1
year: without restriction.
More than 1 year: capacitors must be re-formed before setting up and operating the drive. Re-
forming procedures are in Section 2.3.1,
2.3.1
Capacitor Storage
Valid for PSD:
Capacitors integrated in servo amplifiers may be uncharged to absolute zero level, if servo
amplifiers are stored for longer than a year without being connected to mains voltage. If rated
voltage is supplied to such a capacitor, then an extremely high charging current (depending on the
charge characteristics curve) may flow for some time, which could overheat and destroy the
capacitor or the PCB. Even load cycles during this phase result in high current peaks due to
recharging processes.
The capacitors must be reformed therefore after long storage phases. The servo amplifier must be
connected with single phase (to L1/L2 terminals) and low voltage (therefore low charging current)
for about 30 minutes. We recommend using the lowest admitted rated mains supply voltage for
the servo amplifier.
The safer, recommended procedure is the use of a variable transformer. If available, use a variable
transformer to apply voltage in 50 Volt increments for at least 20 minutes at each step until rated
voltage is reached, then hold the final (rated) voltage for at least 1 hour. In a separate operation,
with all other electrical connections (including mains power) removed, apply 24VDC in the correct
polarity 24 V and GND for approximately 30 minutes.
If storage times of over a year are anticipated, the above capacitor re-forming processes may be
avoided by simultaneously powering the servo amplifier with 24 VDC auxiliary power and full rated
mains voltage for at least an hour at intervals of less than a year.
2.4
Installation, setup and normal operation
Installation and setup information are given in
the PACMotion PSD Installation and User Guide
, GFK-
3168.
Normal operation tested for environmental class 3K3 according to IEC 61800-2 .
The manufacturer of the machine defines the necessary end user expertise based on the risk
assessment for the machine and describes the requirements for normal operation based on the
application.
