VOLTWERK VS 3 - Page 122

Voltwerk VS 3, 4, 5 Operating manual 59
8 Help in the case of faults
ENGLISH
DO_BA_2008_121LB_3ENG_BVo 22.2.10
DC IMBALANCE | Imbalance in internal
voltage
| Electronics fault
| Check solar power system
field for earth leakage
| Check the idling voltage of the
solar power system field
| If the fault continues, contact
the manufacturer's service
centre (contact information on
the back of the manual).
DC ISOLATION | Earth leakage of the
solar generator
| Atmospheric charge
| Check solar power system
field for earth leakage
| Wait for improvement in the
weather
DC VOLTAGE | Solar power system
field designed or con-
nected incorrectly
| Check the voltage of the solar
power system field
LEAKAGE CURRENT | Leakage current is too
high
| Check solar power system for
earth leakage
AC CONNECTION PE
a
| Faulty grid connection
| Faulty PE connection
|Wrong grid type
| Earth resistance is too
high
| Check installation and con-
nector pin assignment (see
chapter 5.2, page 30)
| Check grid type (see
chapter 3.7, page 19)
AC CONNECTION N | Faulty grid connection
| Mains plug installed
incorrectly, (L and N
interchanged)
|Wrong grid type
| Earth resistance is too
high
| Check installation and con-
nector pin assignment (see
chapter 5.2, page 30)
| Check grid type (see
chapter 3.7, page 19)
LINE FREQUENCY | Line frequency is
outside tolerance
| Mains plug installed
incorrectly
| Check installation and con-
nector pin assignment (see
chapter 5.2, page 30)
| Check power cable
| Check line frequency
MAINS VOLTAGE | AC overvoltage
| Mains plug installed in-
correctly
| Grid impedance is too
high
b
| Check installation and con-
nector pin assignment (see
chapter 5.2, page 30)
|Check AC fuse
| Controlling mains voltage
Fault indicator Possible cause Possible fault rectification