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WARNING!
If vector motor control mode is in use, do not open the output contactor while the
drive controls the motor. The motor control operates faster than the contactor, and
tries to maintain the load current. This can cause damage to the contactor.
When you select the vector motor control mode and the motor coast stop mode, you can
open the contactor immediately after the drive has received the stop command. This is the
case also if you use the scalar motor control mode.
Protecting the contacts of relay outputs
Inductive loads (relays, contactors, motors) cause voltage transients when switched off. It
is highly recommended that inductive loads are equipped with noise attenuating circuits
(varistors, RC filters [AC] or diodes [DC]) in order to minimize the EMC emission at switch-off.
If not suppressed, the disturbances may connect capacitively or inductively to other
conductors in the control cable and form a risk of malfunction in other parts of the system.
Install the protective component as close to the inductive load as possible. Do not install
protective components at the relay outputs.
2
3
4
230 V AC
230 V AC
+ 24 V DC
1
Relay output
1
Varistor
2
RC filter
3
Diode
4
50 Guidelines for planning the electrical installation
Summary of Contents for ACS480
Page 1: ... ABB GENERAL PURPOSE DRIVES ACS480 drives Hardware manual ...
Page 2: ......
Page 4: ......
Page 12: ...12 ...
Page 24: ...24 ...
Page 34: ...34 ...
Page 122: ...122 ...
Page 124: ...Frame R1 Frame R1 front side IP20 UL type open 124 Dimension drawings ...
Page 125: ... Frame R1 bottom rear IP20 UL type open Dimension drawings 125 ...
Page 126: ... Frame R1 front side UL type 1 kit installed 126 Dimension drawings ...
Page 127: ... Frame R1 bottom rear UL type 1 kit installed Dimension drawings 127 ...
Page 128: ...Frame R2 Frame R2 front side IP20 UL type open 128 Dimension drawings ...
Page 129: ... Frame R2 bottom rear IP20 UL type open Dimension drawings 129 ...
Page 130: ... Frame R2 front side UL type 1 kit installed 130 Dimension drawings ...
Page 131: ... Frame R2 bottom rear UL type 1 kit installed Dimension drawings 131 ...
Page 132: ...Frame R3 Frame R3 front side IP20 UL type open 132 Dimension drawings ...
Page 133: ... Frame R3 bottom rear IP20 UL type open Dimension drawings 133 ...
Page 134: ... Frame R3 front side UL type 1 kit installed 134 Dimension drawings ...
Page 135: ... Frame R3 bottom rear UL type 1 kit installed Dimension drawings 135 ...
Page 136: ...Frame R4 Frame R4 front side IP20 UL type open 136 Dimension drawings ...
Page 137: ... Frame R4 bottom rear IP20 UL type open Dimension drawings 137 ...
Page 138: ... Frame R4 front side UL type 1 kit installed 138 Dimension drawings ...
Page 139: ... Frame R4 bottom rear UL type 1 kit installed Dimension drawings 139 ...
Page 140: ...140 ...
Page 163: ... Declaration of conformity The Safe torque off function 163 ...
Page 164: ...164 ...
Page 172: ...Dimensions 172 BIO 01 I O extension module ...
Page 178: ...178 ...