NORD Drivesystems BU0540 - Manual (Page 19)

2 Assembly and installation
BU 0540 GB-1013 19
Connection data:
Frequency inverter BG 1 ... 4 Size 5 Size 6 Size 7 Size 8 Size 9
Rigid cable Ø [mm²] 0.2 … 6 0.5 … 16 0.5 … 35 0.5 … 50 50 95
Flexible cable Ø [mm²] 0.2 … 4 0.5 … 10 0.5 … 25 0.5 … 35 50 95
AWG standard 24-10 20-6 20-2 20-1 1/0 3/0
Starting torque [Nm] 0.5 … 0.6 1.2 … 1.5 2.5 … 4.5 2.5 … 4 15 15
[lb-in] 4.42 … 5.31 10.62 … 13.27 22.12 … 39.82 22.12 … 35.4 135 135
Table 5: Connection data
NOTICE Brake voltage supply
The voltage supply for an electro-mechanical brake (or its brake rectifier) must be via the mains.
Connection to the output side (connection to the motor terminals) may cause the destruction of the brake or the
frequency inverter.
Pos : 52 /Anl eitungen/ Elektroni k/FU und Start er/ 2. M ont age und Ins tall ati on/ 2. 10. 4 Elektrischer Ansc hluss Leis tungst eil -Teil 1 - N etz ansc hlus s (X1) [ BU 0500] @ 1\ mod_1331195429990_388. doc x @ 17590 @ 5 @ 1
Mains connections (X1 – PE, L1, L2/N, L3)
No special safety measures are required on the mains input side of the frequency inverter. It is
advisable to use the normal mains fuses (see technical data) and a main switch or circuit breaker.
Frequency inverter data Permissible mains data
Voltage Power 1 ~ 115 V 1 ~ 230 V 3 ~ 230 V 3 ~ 400 V
115 VAC 0.25 … 0.75 kW X
230 VAC 0.25 … 2.2 kW X X
230 VAC
≥ 3.0 kW
X
400 VAC
≥ 0.37 kW
X
Connections L/N = L1/L2 L/N = L1/L2 L1/L2/L3 L1/L2/L3
Isolation from or connection to the mains must always be carried out for all the poles and
synchronously (L1/L2/L2 or. L1/N).
NOTICE Operation in IT networks
The use of this frequency inverter on an IT network is possible after modification of the integrated mains filter.
It is urgently recommended that the frequency inverter is only operated on a IT network if a braking resistor is
connected. If an earthing fault occurs in the IT network, this measure prevents an impermissible charging of the
link circuit capacitor and the associated destruction of the frequency inverter.
For operation with an insulation monitor, the insulation resistance of the frequency inverter must be taken into
account.
Pos : 53 /Anl eitungen/ Elektroni k/FU und Start er/ 2. M ont age und Ins tall ati on/ 2. 10. 4 Elektrischer Ansc hluss Leis tungst eil -Teil 2 - M ot or kabel (X2) [ BU 0500] @ 1\ mod_1331195941727_388. doc x @ 17638 @ 5 @ 1
Motor cable (X2 - U, V, W, PE)
The motor cable may have a total length of 100m if this is a standard cable (take EMC into
consideration). If a screened motor cable is used, or if the cable is laid in a metal conduit which is well
earthed, the total length should not exceed 30m.
For greater lengths of cable, an additional output choke (accessory) must be used.