ABB ACS800 Hardware Manual page 146

144
ACS800-01 type
ACS800-U1 type
690 V units
-0011-7
-0016-7
-0020-7
-0025-7
-0030-7
-0040-7
-0050-7
-0060-7
-0070-7
-0100-7
-0120-7
-0145-7
-0175-7
-0205-7
P The drive and the chopper will withstand this continuous braking power. The braking is considered continuous if the
brcont
braking time exceeds 30 s.
Note: Check that the braking energy transmitted to the specified resistor(s) in 400 seconds does not exceed
E .
R
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 heat the resistor
R
element from 40 °C (104 °F) to the maximum allowable temperature.
P Continuous power (heat) dissipation of the resistor when placed correctly. Energy E
Rcont
1)
22 kW with standard 22 ohm resistor and 33 kW with 32...37 ohm resistor
All braking resistors must be installed outside the converter module. The SACE brake resistors are built in an IP 21 metal
housing. The SAFUR brake resistors are built in an IP 00 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 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.
Resistor braking
Braking power Brake resistor(s)
of the chopper
and the drive
P Type
brcont
(kW)
8 SACE08RE44
11 SACE08RE44
16 SACE08RE44
22 SACE08RE44
28 SACE15RE22
1)
22/33 SACE15RE22
45 SACE15RE13
56 SACE15RE13
68 SAFUR90F575
83 SAFUR90F575
113 SAFUR80F500
160 SAFUR80F500
160 SAFUR80F500
160 SAFUR80F500
R E P
R
(ohm) (kJ) (kW)
44 210 1
44 210 1
44 210 1
44 210 1
22 420 2
22 420 2
13 435 2
13 435 2
8 1800 4.5
8 1800 4.5
6 2400 6
6 2400 6
6 2400 6
6 2400 6
PDM code 00096931-J
dissipates in 400 seconds.
R
Rcont