VARMECA
15
6 - MAINTENANCE
• All work related to installation,
commissioning and maintenance
must be carried out by experienced and
qualified personnel.
• Do not carry out any work
before the VARMECA power supply has
been cut off and locked, and wait 2
minutes until the capacitors have
discharged.
6.1 - Servicing
No specific maintenance is required for
VARMECA motors, apart from the
regular removal of dust from the
ventilation louvres and the cooling
fins situated at the bottom of the box.
Do not dismantle the VARMECA while it
is still under guarantee, as this would
then immediately become null and void.
CAUTION :
The rear cover protects the electronic
boards and should only be removed for
adjustment using the mini DIP switch
marked S4
✶
.
Certain components which are sensitive
to electrostatic discharges can be
destroyed simply by touching them.
Do not leave any metal object in the
connection area, as this might cause a
short-circuit.
✶
For ratings 300 and 400, S4 can be
accessed without removing the rear cover,
via the connection space, through a
special opening in the rear cover, which is
protected by a plastic plug.
6.2 - Measurements
6.2.1 - General
The input voltages can be measured with
ordinary instruments.
Motor current is not measured on the
VARMECA power supply (L1, L2, L3). It
is measured with an ordinary clamp ammeter
on the longest wire, which forms a loop on
the side of the connection circuit.
6.2.2 - Procedure for measuring the
motor current (if the motor wire loop is
accessible)
- Open the VARMECA power supply
circuit and lock it.
- Wait 2 min for the capacitors to discharge.
- Open the cover of the VARMECA.
- Remove the mains cable (L1, L2, L3).
- Remove the 3 TORX 20 + slot type
screws from the connection circuit.
- Pass the longest motor wire along the
side of the connection circuit.
- Replace the connection circuit and fasten it.
- Reconnect the mains (L1, L2, L3).
- Pass the clamp ammeter through the motor
wire loop.
L1
1
5
6
3
PE
4
2
L2
Filtre
CEM
EMC
filter
L3
PE
1
2
3
4
5
5s
2s
Start/Stop
Accel
Decel
6
7
8
Avant
intervention
attendre 2mn
Before
maintenance
wait 2mn
ATTENTION
CAUTION
10kW
Motor
wire
(black)
