4
PQSTOR I
I N S TR U C TI O N M A N UA L
WARNING:
Prior to servicing, disconnect the
module from the power supply, wait 20 minutes
to discharge capacitors and check the voltage
between terminals. Never discharge the capacitors
through a short-circuit. Instead, use a current
limiting resistor of at least 100 Ω.
DANGER:
If the system is not properly grounded,
a fault in the module or in a multi-module system
connected in parallel would result in full line
voltage between the chassis and earth, leading
to severe injury or death if both are touched
simultaneously.
WARNING:
The neutral current of the device may
be as high as 1.5 times the line current. If a 4-pole
is being used to make connections, make sure all
its poles are suitably rated.
WARNING:
The PQstorI is generally operated with a
battery at high voltage levels. Follow safety in-
structions provided by your battery manufacturer.
—
01 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Symbol
Interpretation
Section
Alternating current/ voltage (AC)
4.5.2
Direct current/ voltage (DC)
4.5.3
Grounding
4.5.1
Phase connection
4.5.2
DANGER:
These safety instructions are intended
for all work on the PQstorI range of products.
Neglecting these instructions will cause physical
injury or death. All electrical installation and
maintenance work inside these products must be
carried out by a qualified electrician.
Do not
attempt to work on a powered module.
WARNING:
Before manipulating current
transformers, make sure that the secondary is
short-circuited. Never open the secondary of a
loaded current transformer. Make sure to always
wear insulating gloves and eye-protection when
working on electrical installations, and to meet
local safety regulations.
WARNING:
This equipment contains capacitors
that are connected between the phase lines and
the earth. A leakage current will flow during normal
operation. Therefore, a good earth connection is
needed and must be connected before supplying
power to the module.
WARNING:
The equipment terminals are marked with the following symbols. Please make the
connections accordingly. Refer to relevant sections in this manual for detailed information.