Installation
4-17
BA9300SU EN 2.1
• Observe the max. permissible motor cable length:
a
r
= 400 V (+10%) a
r
= 480 V (+10%)
Type f
chop
=8kHz f
chop
=16kHz f
chop
=8kHz f
chop
=16kHz
9321/9322 up to 50 m up to 45 m up to 50 m up to 25 m
9323 - 9332 up to 50 m up to 50 m up to 50 m up to 50 m
The max. permissible motor cable length of types 9323 - 9332 will be reduced if the motor has more than a single core.
• Two parallel single cores: L
max
=17m
• Three parallel single cores: L
max
=9m
• Connect the motor cables to the screw terminals U, V, W.
– Observe correct pole connection.
– Maximum motor cable length: 50 m.
– Max. permissible cable cross-sections and screw tightening torques:
Max. permissible cable
cross-sections
Tightening torques for terminals
Type
Power
connections
T1, T2 U, V, W PE connection
Screen/
Strain relief
T1, T2
9321 - 9326 4mm
21)
0.5 ... 0.6 Nm
(4.4 ... 5.3 lbin)
3.4 Nm
(30 lbin)
9332 120 mm
22)
30 Nm (265.5 lbin)
1)
with pin-end connector: 6 mm
2
with wire crimp cap 4 mm
2
2)
with ring cable lug The cross-section is only limited by the cable cut-out in the housing.
Note!
Switching on the motor side of the controller is permitted only for emergency switch-off.
4.2.7.3 Connection of a brake unit
• When connecting a brake unit (brake module with internal brake resistor or brake chopper
with external brake resistor) observe the corresponding Operating Instructions in all cases.
Stop!
• Design the circuit so that, if the temperature monitoring of the brake unit is activated,
– the controllers are inhibited (X5/28 = LOW).
– the mains is disconnected.
• Examples:
– Chapter 4.3, “Installation of a CE-typical drive system”.
(
^
4-34)
– Fig. 4-9, “Decentralized supply for DC-bus connection of several drives”. (
^
4-18)
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