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Planning the electrical installation
63
Protecting the drive and the input power and motor cables against thermal
overload
The drive protects itself and the input and motor cables against thermal overload
when the cables are dimensioned according to the nominal current of the drive. No
additional thermal protection devices are needed.
WARNING!
If the drive is connected to multiple motors, use a separate circuit
breaker fuses for protecting each motor cable and motor against overload. The drive
overload protection is tuned for the total motor load. It may not trip due to an
overload in one motor circuit only.
Protecting the motor against thermal overload
According to regulations, the motor must be protected against thermal overload and
the current must be switched off when overload is detected. The drive includes a
motor thermal protection function that protects the motor and switches off the current
when necessary. Depending on a drive parameter value, the function either monitors
a calculated temperature value (based on a motor thermal model) or an actual
temperature indication given by motor temperature sensors. The user can tune the
thermal model further by feeding in additional motor and load data.
The most common temperature sensors are:
• motor sizes IEC180…225: thermal switch, eg, Klixon
• motor sizes IEC200…250 and larger: PTC or Pt100.
See the firmware manual for more information on the motor thermal protection, and
the connection and use of the temperature sensors.
Protecting the drive against ground faults
The drive is equipped with an internal ground fault protective function to protect the
unit against ground faults in the motor and motor cable. This is not a personal safety
or a fire protection feature. The ground fault protective function can be disabled with
a parameter, refer to the firmware manual.
Measures for protection in case of direct or indirect contact, such as separation from
the environment by double or reinforced insulation or isolation from the supply
system by a transformer, can be applied.
Residual current device compatibility
The drive is suitable to be used with residual current devices of Type B.
Note:
The EMC filter of the drive includes capacitors connected between the main
circuit and the frame. These capacitors and long motor cables increase the ground
leakage current and may cause fault current circuit breakers to function.
Содержание ACS850-04 series
Страница 1: ...ABB machinery drives Hardware manual ACS850 04 drive modules 160 to 560 kW 200 to 700 hp ...
Страница 4: ......
Страница 12: ...Table of contents 12 ...
Страница 20: ...Safety instructions 20 ...
Страница 26: ...Introduction to the manual 26 ...
Страница 81: ...Installation 81 Assembly drawing frame G1 3AUA0000132078 ...
Страница 82: ...Installation 82 Assembly drawing frame G2 3AUA0000132062 ...
Страница 83: ...Installation 83 Assembly drawing air baffles 3AUA0000132062 ...
Страница 92: ...Installation 92 3 6a 6b 5 4 8 4 8 6a 6b 7a 7b 7b ...
Страница 93: ...Installation 93 Assembly drawing of installing the drive module to the cabinet frame G1 3AUA0000132078 ...
Страница 94: ...Installation 94 Assembly drawing of installing the drive module to the cabinet frame G2 3AUA0000132062 ...
Страница 98: ...Installation 98 3AUA0000038989 TXD transmitter RXD receiver JRIB V2 V1 V7 V6 1 2 APOW JINT 2 JRIB 1 4 3 JGDR ...
Страница 112: ...Installation checklist 112 ...
Страница 114: ...Start up 114 ...
Страница 116: ...Fault tracing 116 ...
Страница 140: ...Technical data 140 ...
Страница 142: ...Dimension drawings 142 Frame G1 Drive module dimensions ...
Страница 143: ...Dimension drawings 143 Frame G1 Drive module dimensions with optional cabling panels H381 ...
Страница 144: ...Dimension drawings 144 ...
Страница 145: ...Dimension drawings 145 Frame G1 Cabling panels H383 installed into a Rittal TS 8 cabinet ...
Страница 146: ...Dimension drawings 146 Frame G2 Drive module dimensions ...
Страница 147: ...Dimension drawings 147 Frame G2 Drive module dimensions with optional cabling panels H381 ...
Страница 148: ...Dimension drawings 148 ...
Страница 149: ...Dimension drawings 149 Frame G2 Cabling panels H383 installed into a Rittal TS 8 cabinet ...
Страница 150: ...Dimension drawings 150 Frames G1 and G2 Bottom plate 3AUA0000082240 ...
Страница 151: ...Dimension drawings 151 Frames G1 and G2 Air baffles 3AUA0000138986 ...
Страница 152: ...Dimension drawings 152 ...
Страница 162: ...du dt filters 162 ...
Страница 164: ...3AUA0000081249 Rev C EN 2013 04 11 Contact us www abb com drives www abb com drivespartners ...