Common Dc Bus Fusing - Emerson SP1201 Installation Manual

Safety Product
Introduction
Information information
Table 10-18 SPMC / U input current, fuse and cable ratings
Typical input
Model current
A
SPMC1402 339
SPMC2402 2 x 308
SPMU1401 207
SPMU1402 339
SPMU2402 2 x 339
SPMC1601 192
SPMC2601 2 x 170
SPMU1601 192
SPMU2601 2 x 170
10.3.2

Common DC Bus Fusing

DC bus fusing is required in the following systems for both the regen and
motoring drives, and the SPMC if used as the external soft start circuit.
1. Single regen, multiple motoring drives
2. Multiple regen, multiple motoring drives
3. Unidrive SP regen brake resistor replacement
4. Regen systems using an SPMC
DC bus fuses as detailed following must be fitted in both the positive and
negative branches of DC Bus connections to each of the regen and
motoring drives, and the SPMC if used as the external soft start circuit.
NOTE
Ferraz have a range of DC fuses which could be used to provide the
required protection, types (00 and 21) may be used.
00 - Fuse with no trip indicator fitted
21 - Fuse fitted with trip indicator
NOTE
The DC Bus voltage set-point on a regen system (default) is set to
700Vdc, this can be up to a maximum 800Vdc. Therefore ensure the
selected DC Bus fusing is of the correct voltage rating with regards to
the DC Bus voltage level (Pr 3.05 DC Bus Voltage Set-point).
Unidrive SP Regen Installation Guide
Issue Number: 2
System Mechanical
design installation
Maximum Typical DC
input current current
A Adc
class gG UL
344 379
2 x 312 2 x 345
210 222
344 379
609 2 x 379
195 209
2 x 173 2 x 185
195 209
2 x 173 2 x 185
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Electrical Getting
Optimisation
installation started
Semi-conductor fuse
in series with HRC fuse
HRC IEC Semi-
conductor
class J IEC class aR
540 400 2 x 120
450 400 2 x 120
250 315 2 x 70
540 400 2 x 120
450 400 2 x 120
250 250 2 x 70
250 250 2 x 70
250 250 2 x 70
250 250 2 x 70
Technical Component
Parameters
data
Cable sizes
AC input DC output
2 2
AWG AWG
mm mm
2 x 4/0 2 x 120 2 x 4/0
2 x 4/0 2 x 120 2 x 4/0
2 x 2/0 2 x 70 2 x 2/0
2 x 4/0 2 x 120 2 x 4/0
2 x 4/0 2 x 120 2 x 4/0
2 x 2/0 2 x 120 2 x 4/0
2 x 2/0 2 x 120 2 x 4/0
2 x 2/0 2 x 120 2 x 4/0
2 x 2/0 2 x 120 2 x 4/0
Diagnostics
sizing
193