Location Of Forced Cooling; 575V Regen System Maximum Cable Length; 690V Regen System Maximum Cable Length; 200V Regen System Exceeding Maximum Cable Lengths - Emerson SP1201 Installation Manual

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Table 4-7 575V Regen system maximum cable length
575V Nominal AC supply voltage
Model Maximum permissible cable length
3kHz 4kHz
SP3501
SP3502
SP3503
200m 150m
SP3504
(660ft) (490ft)
SP3505
SP3506
SP3507
Table 4-8 690V Regen system maximum cable length
690V Nominal AC supply voltage
Model Maximum permissible cable length
3kHz 4kHz
SP4601
SP4602
SP4603
SP4604
SP4605
SP4606
SP5601
SP5602
200m 185m
(660ft) (607ft)
SP6601
SP6602
SPMA1601
SPMA1602
SPMD1601
SPMD1602
SPMD1603
SPMD1604
If the cable length in the above table is exceeded, additional components
are required. Refer to section 4.6 Exceeding maximum cable length .
4.5

Cable types and lengths

Since capacitance in the cabling causes loading, ensure the cable length
does not exceed the values given.
Use 105°C (221°F) (UL 60/75°C temp rise) PVC-insulated cable with
copper conductors having a suitable voltage rating, for the following
power connections:
• AC supply to external EMC filter (when used)
• AC supply (or external EMC filter) to Regen drive
• Regen drive to motoring drive (or busbar arrangement could be
used)
• Motoring drive to motor
4.6 Exceeding maximum cable length
If the total maximum length specified is exceeded, the increased
circulating currents caused by the extra cable capacitance will have an
effect on the other parts of the system. This will necessitate additional
components to be added to the standard arrangement.
4.6.1 Regen inductor
If the maximum cable length specified is exceeded this will introduce
increased heating of the regen inductor. To overcome the additional
heating forced cooling should be introduced into the system as specified
in the following table.
The forced cooling should be positioned as shown below to provide the
specified airflow directly onto the regen inductor windings.
42
System Mechanical Electrical
design installation installation
6kHz 8kHz 12kHz 16kHz
100m 75m
(330ft) (245ft)
6kHz 8kHz 12kHz 16kHz
90m
(295ft)
125m
(410ft)
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Figure 4-6 Location of forced cooling
Table 4-9 200V Regen system exceeding maximum cable lengths
200V Nominal AC supply voltage
Maximum permissible cable length with forced cooling
Model
3kHz 4kHz 6kHz
SP1201 65m (210ft)
SP1202 100m (330ft)
SP1203 130m (425ft)
SP1204
SP2201
100m
SP2202
200m 150m
(330ft)
(660ft) (490ft)
SP2203
SP3201
SP3202
SP4201
65m 65m 65m
SP4202
(210ft) (210ft) (210ft)
SP4203
SP5201
250m 185m 125m
(820ft) (607ft) (410ft)
SP5202
SPMD1201
SPMD1202
250m 185m 125m
(820ft) (607ft) (410ft)
SPMD1203
SPMD1204
Unidrive SP Regen Installation Guide
Technical Component
Diagnostics
data sizing
Forced
8kHz 12kHz 16kHz cooling
required
37m
(120ft)
50m
75m
(165ft)
(245ft)
Air flow >
3
160m
65m
(210ft)
90m
(295ft)
Issue Number: 2
/ hr