3-14
Installing the Drive
AC890PX AC Drive
2.1.5 External Brake Resistor (J)
The AC890PX is fitted with an internal resistor. Removing the internal brake resistor connections will disconnect the internal
braking resistor allowing the connection of an external brake resistor.
NOTE
It is possible to use both the internal and external brake resistors (wired as shown) but we recommend you contact
Parker Hannifin Manufacturing for advice.
Refer to Chapter 5: "Associated Equipment" - External Braking Resistors for help with using and selecting external brake
resistors.
The overload relay protects the internal brake resistor. The switch will require resetting to "ON" if the drive trips on BRAKE
SWITCH (the keypad display).
There are similar trips to protect the external brake resistor. Refer to Chapter 9: "Trips and Fault Finding".
Summary of Contents for AC890PX Series
Page 17: ...2 5 Product Overview AC890PX AC Drive 890PX bottom wire entry ...
Page 144: ...The Keypad 7 9 AC890PX AC Drive The Menu System Map ...
Page 145: ...7 10 The Keypad AC890PX AC Drive The Menu System Map continued ...
Page 328: ...Programming D 88 AC890PX AC Drive Functional Description ...
Page 386: ...Programming D 146 AC890PX AC Drive Setpoint Drive Frequency Frequency 1 Frequency 2 ...