Nanni Q2400 Series, User Manual

Page: 87 / 110

87
S08 ALTERNATOR
Once the connection was made check the terminal
tightening torques that must comply with the instructions
given in chapter “General Tightening Torques”
When the connection is finished reassemble the cover of
the terminal box.
NOTE!
The user power cables must be wired and supported
adequately so as not to cause mechanical stress on the
terminal block of the alternator
Phase rotation and sequence
All the fans of the ECP alternators are designed to rotate
bidirectionally.
Clockwise rotation, seen from the coupling side: the order
of the outgoing phases is L1, L2 , L3.
Anticlockwise rotation, seen from the coupling side: the
order of the outgoing phases is L3, L2 , L1 (the order is
reversed).
Winding connection modalities
The alternators are manufactured with 12 standard
outgoing cables in order to allow different voltage output,
for instance, at 50 Hz, 115 V (ΔΔ) / 200 V (YY) / 230 V (Δ)
/ 400 V (Y).
TERMINAL BOARD CONFIGURATIONS
Position Components
1 7 x M6 terminals
2 Fixing screws and washers
3 Torque N.m
4 Self-tapping screw M6 x 25-9N.m
5 Regulator support
6 Regulator
7 Support panels
Position Components
1 M6 7-pin terminal board
2
Self-forming TE screw M6x16 (n.2)
Tightening torque 9Nm
3 Tightening torque Nm
4
Self-forming TE screw M6x25
Tightening torque 9Nm
5
Regulator holding panel
TE M6x16 screw(n.4)
Tightening torque 9Nm
TE M6 UNI 5587 nut (n.4)
6
Regulator
TC M4x20 screw (n.2)
Tightening torque 1.5Nm
Toothed washer Ø4 (n.4)
TE M4 UNI 5587 nut (n.2)