Warner Electric E330 - Manual (Page 4)

4 Warner Electric Europe • +33 (0)2 41 21 24 24 P-2041-WE • 2/13
Tolerance in the supply voltage to the clutch terminals
+5% / -10% (NF C 79-300).
5.2 Power supply
For controlling these clutches, we advise the use of
Warner Electric supply units.
Sizes 50 to 1600:
CBC 140-5
Sizes 6400 to 12800:
Ask us.
Warner Electric supply units provide protection for
coils and circuits. Where a clutch is used without our
supply units, with switching on the DC, it is essential
for the coil to be protected against surges by a varistor
NB: VAR05 is supplied with a pre-set airgap, however,
after fitting, check travel Q (measured in engaged
position).
• Fit the coupling hub (507) onto the 2nd shaft and
clamp it axially
• Put the spider (730) inside the coupling flange (528)
• Assemble the moving part with the receiving part
by introducing the coupling hub teeth into the teeth
hollows of the spider (730)
It is essential when fitting to respect
dimension E (fitting the flexible coupling - see
table 1).
4 Maintenance
After a running time varying according to use, it may
be nec essary to change the bearings. For the inductor
bearings, as the assembly is special, we recommend
return to our fac tory for exchange.
3.3.3 Installing VAR05
• After adjusting the drive keyway, fit the assembled
inductor onto the shaft, then the adjusting spacer,
followed by the assembled bearing race, clamp the
whole axially on the shaft
5 Electrical connection
E330 units must be supplied with direct current (D.C)
and are equipped with a 500 mm length wire. Polarity
does not affect the functioning..
5.1 Important recommendations
All works on the electrical connections have to
be made with power off.
The connecting wires should be of sufficient diameter
to prevent voltage drops between the source and
equipment supplied.
I (A) / L (m) 0 to 10 m from 10 to 20 m
0 to 3 (A) 1,5 mm 2 1,5 mm 2
3 to 6 (A) 1,5 mm 2 2,5 mm 2
Table 2
From size 100, the coupling flange (528) is
not factory fixed. After fitting the device on
the shaft, fix this flange by means of the screws
provided, tightened to torque (see table 2) and
secured with a Loctite 243 type or equivalent
product.
Ensure compliance with the nominal supply
vol tage (inadequate supply causes a reduction in
the starting distance and transmissible torque).