Resistor Installation And Wiring - ABB ACS800-U4 Hardware Manual
Drive modules (90 to 500 kw)
drive modules (125 to 600 hp)
Hide thumbs
Also See for ACS800-U4:
- Hardware manual (144 pages) ,
- Firmware manual (214 pages) ,
- Cabinet installation and operating instruction (162 pages)
Table of Contents
Advertisement
Combined braking cycles for R7:
Examples
P
br
P
or P
br5
br10
P
br30
P
brcont
No braking
• After P
, P
or P
braking, the drive and the chopper will withstand P
br5
br10
br30
• Before P
, P
or P
br5
br10
br30
• After P
or P
braking, the drive and the chopper will withstand P
br5
br10
• P
braking is not acceptable after P
br10
Combined braking cycles for R8:
Examples
P
P
, P
or P
br5
br10
br30
P
brcont
No braking
• After P
, P
or P
braking, the drive and the chopper will withstand P
br5
br10
br30
after P
, P
or P
.)
br5
br10
br30
• Before P
, P
or P
br5
br10
br30
All braking resistors must be installed outside the converter module. The resistors are built in an IP 00 metal frame. The 2xSAFUR and
4xSAFUR resitors are connected in parallel.
Resistor installation and wiring
All resistors must be installed outside the drive module in a place where they will
cool.
WARNING! The materials near the brake resistor must be non-flammable. The
surface temperature of the resistor is high. Air flowing from the resistor is of
hundreds of degrees Celsius. Protect the resistor against contact.
Use the cable type specified for drive input cabling under chapter Technical Data to
ensure the input fuses will also protect the resistor cable. Alternatively, two-
conductor shielded cable with the same cross-sectional area can be used. The
maximum length of the resistor cable(s) is 10 m (33 ft). For the connections, see the
power connection diagram of the drive.
max 5 s or 10 s
min. 30 s max 30 s
min. 30 s
braking, there has to be at least 30 seconds without any braking.
braking.
br5
max 5 s, 10 s or 30 s
br
min. 60 s
braking there has to be at least 60 seconds without any braking.
max 30 s
min. 30 s
continuously.
brcont
within a total braking time of 30 seconds.
br30
continuously. (P
brcont
min. 60 s
is the only allowed braking power
brcont
Resistor braking
109
t
t
Advertisement
Table of Contents
