Nidec LEROY-SOMER VARMECA 30 Installation Und Wartung Seite 48

3.3 - Power terminal blocks
3.3.1 - Terminal block for power supply PB1
(marked L1, L2 and L3)
This terminal block is used to connect the 3-phase power
supply when the EMC filter is not supplied with the VARMECA
30. Otherwise, the EMC filter output is screwed onto this
connector and the power supply should be attached to the
terminals located on top of the filter.
Screw terminal block: VMA 33/34
Tightening torque: 1.8 N.m
Max. cross-section: 4 mm
3.3.2 - Terminal block for braking resistor PB2
(marked R+ and R-)
This terminal block is used to connect a braking resistor when
this option is required. The resistor is mounted on the outside
and/or the rear of the VARMECA 30 casing.
Screw terminal block: VMA 33/34
Tightening torque: 1.8 N.m
Max. cross-section: 4 mm
Note: For the VMA 31/32, PB1 and PB2 are both
located on the same terminal block.
The terminal block on the VARMECA 31/32 has a terminal
marked FI connected to the R- terminal which enables use
of the internal braking resistor. The jumper must be
removed when an external braking resistor is connected
or if the inertia is incompatible with the rated deceleration
ramp.
3.3.3 - Earth connection
The earth connection is made using one of the two M5 x 10
(VMA 31/32) screws or M6 x 10 (VMA 33/34) labelled
located in the front of the VARMECA.
3.3.3.1 - VARMECA without EMC filter option
(Ditto current VARMECA 30 manual 3.3.3)
3.3.3.2 - VARMECA with EMC filter option
Proceed as in 3.3.3.1 and connect a 10 mm
earth cable to the motor frame.
VMA 31/32
18
VMA 31/32
0.8 Nm
(AWG8) 2.5 mm
2 2
VMA 31/32
0.8 Nm
(AWG8) 2.5 mm
2 2
cross-section
2
P2
RJ 45
PB1 & PB2
CONNECTIONS
3.4 - Terminal blocks for options
3.4.1 - RS485 type serial link connector
This is an RJ 45 connector and is used to connect the PX LCD
console or a PC in order to use the VMA SOFT programming
software.
For the VMA 31/32 it is also used to connect the fieldbus or the
PADVMA 31/32 option.
3.4.2 - Description of Slot 1
(VMA 33/34 only)
This slot is used to connect the encoder feedback module
(option: COD VMA 30) when «closed loop» mode is selected.
,
- The VARMECA can only be powered by the mains when
it is mounted on the motor and the motor is earthed.
- If the VARMECA is powered when it is not mounted on
the motor, the user must connect the mechanical earth
(casing) to earth.
VMA 33/34
RJ 45
SLOT 1
SLOT 2
PB 1
Installation and maintenance - VARMECA 30
3776 en - 2017.10 / n
PB 2