ABB recommends that you also wire the thermal switch to a digital input of the
drive, and configure the input to cause a fault trip at resistor overtemperature
indication.
L1 L2 L3
L1 L2 L3
K1
x
+24V
x
DIx
OFF
ON
1
3
5
2
4
6
1
2
13
14
3
4
Θ
1
2
3
4
5
Drive input power connection with a main contactor
1
Drive
2
Main contactor control circuit
3
Brake resistor thermal switch
4
Digital input. Monitors the brake resistor thermal switch.
5
■
Protecting the resistor cable against short-circuits
The input fuses will also protect the resistor cable when it is identical with the
input cable.
Mechanical installation
The brake chopper and brake resistors must be installed outside the drive. Obey
the resistor manufacturer’s instructions.
Electrical installation
■
Measuring the installation
Follow the instructions given under
Measuring the insulation resistance of the
brake resistor circuit (page 93)
.
Resistor braking 247
Summary of Contents for ACH580-31
Page 1: ... ABB INDUSTRIAL DRIVES ACH580 31 drives Hardware manual ...
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Page 130: ...R3 Max 250 mA 130 Electrical installation North America NEC ...
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Page 214: ...R3 IP21 UL Type 1 3AXD50000028643 214 Dimension drawings ...
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Page 216: ...R6 IP21 UL Type 1 3AXD50000037446 216 Dimension drawings ...
Page 217: ...R6 Option B056 IP55 UL Type 12 3AXD50000045351 Dimension drawings 217 ...
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Page 282: ...282 CMOD 02 multifunction extension module external 24 V AC DC and isolated PTC interface ...