Resistor Installation And Wiring - ABB ACS800-U1 Hardware Manual

ACS800-01 type Braking power
of the chopper
ACS800-U1 type
and the drive
P
brcont
(kW)
690 V units
-0011-7 8
-0016-7 11
-0020-7 16
-0025-7 22
-0030-7 28
-0040-7
22/33
-0050-7 45
-0060-7 56
-0070-7 68
-0100-7 83
-0120-7 113
-0145-7 160
-0175-7 160
-0205-7 160
* Type not available any more.
P
The drive and the chopper will withstand this continuous braking power. The braking is
brcont
considered continuous if the braking time exceeds 30 s.
Note: Check that the braking energy transmitted to the specified resistor(s) in 400 seconds
does not exceed
R
Resistance value for the listed resistor assembly. Note: This is also the minimum allowed
resistance for the brake resistor.
E
Short energy pulse that the resistor assembly withstands every 400 seconds. This energy will
R
heat the resistor element from 40 °C (104 °F) to the maximum allowable temperature.
P
Continuous power (heat) dissipation of the resistor when placed correctly. Energy
Rcont
dissipates in 400 seconds.
1)
22 kW with standard 22 ohm resistor and 33 kW with 32...37 ohm resistor
All brake resistors must be installed outside the drive. The SACE brake resistors are built in an
IP21 metal housing. The SAFUR brake resistors are built in an IP00 metal frame. Note: The SACE
and SAFUR resistors are not UL listed.

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 used for drive input cabling (refer to
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.
Brake resistor(s)
Type
SACE08RE44
SACE08RE44
SACE08RE44
SACE08RE44
SACE15RE22
SACE15RE22
1)
SACE15RE13
SACE15RE13
SAFUR90F575
SAFUR90F575
SAFUR80F500
SAFUR80F500
SAFUR80F500
SAFUR80F500
E
.
R
Resistor braking 165
R E
R
(ohm)
(kJ)
44 210
44 210
44 210
44 210
22 420
22 420
13 435
13 435
8 1800
8 1800
6 2400
6 2400
6 2400
6 2400
Technical data
on page 105)
P
Rcont
(kW)
1
1
1
1
2
2
2
2
4.5
4.5
6
6
6
6
00096931
E
R