Inverter Wiring - gefran VDI100 Series Instruction Manual

3.12.

Inverter Wiring

Wiring Precautions
• Do NOT remove any protective covers or attempt any wiring while input power is applied. Connect all
Warning
wiring before applying input power. When making wiring changes after power up, remove input power
and wait a minimum of five minutes after power has been turned off before starting. Also confirm that the
charge lamp is off and that DC voltage between terminals B1/P or (+) and (-) does not exceed 25V, other-
wise electric shock may result.
• Only authorized personnel should work on the equipment. (Take off metal jewelry such as watches and
rings and use insulated tools.), otherwise electric shock or injury may result.
Précautions relatives aux câblages
NE PAS retirer les caches de protection ni tenter de réaliser des câblages sous tension. Brancher tous les
•
câblages avant d'alimenter l'équipement. En cas de modifications des câblages après la mise sous ten-
sion, couper l'alimentation et attendre au moins cinq minutes avant d'intervenir. Vérifier aussi que le témoin
de charge est éteint et que la tension CC entre les terminaux B1/P ou (+) et (-) ne dépasse pas 25V. Le
non-respect de cette prescription peut entraîner des risques d'électrocution.
Seul un personnel autorisé peut intervenir sur l'équipement. Eviter de porter des bijoux (montres, bagues,
•
etc.) et utiliser des outils isolés. Le non-respect de cette prescription peut entraîner des risques d'électroc-
ution et de blessures.
(A) Power input terminals
1. The Input power supply voltage can be connected in any phase sequence to power input terminals R/L1, S/
L2, or T/L3 on the terminal block.
2. DO NOT connect the AC input power source to the output terminals U/T1, V/T2 and. W/T3.
3. Connect the output terminals U/T1, V/T2, W/T3 to motor lead wires U/T1, V/T2, and W/T3, respectively.
4. Check that the motor rotates forward with the forward run source. If it does not, swap any 2 of the output
cables to change motor direction.
5. DO NOT connect phase correcting capacitors or LC/RC noise filter to the output circuit.
(B) Grounding
1. Connect the ground terminal (E) to ground having a resistance of less than 100Ω.
2. Do not share the ground wire with other devices, such as welding machines or power tools.
3. Always use a ground wire that complies with the local codes and standards for electrical equipment and
minimize the length of ground wire.
4. When using more than one inverter, be careful not to loop the ground wire, as shown below in Fig. 3.12.1.
VDI100
VDI100
30
Figure 3.12.1: Inverter Grounding
VDI100 VDI100
a) Correct
VDI100 VDI100
b) Correct
VDI100 VDI100
Loop
c) Incorrect
VDI100
VDI100 • Instruction manual