ELECTRICAL INSTALLATION
44 IPA Hardware Installation Guide
Control Power Fuse Information
Each Control Power input line must be protected by the following fuse:
Control Power Fuse Specification
Class CC (Bussmann KTK-R-1 or
equivalent UL listed fuse)
Communications
Diagnostics
Motor position feedback
Brake relay in brake
Drive Inrush Current
The drive inrush current is limited by an internal thermistor that changes value with the ambient temperature.
Drive inrush current is therefore dependent upon the temperature of the surrounding environment (T
amb
). To
determine the drive inrush current for your drive, see the following table.
Drive Motor Power Inrush Current
Power Supply Connections
Power to the IPA may be supplied in one of two ways: a single source to the Motor Input Power (Mains) screw
terminals with the factory installed jumpers in place; or removal of the jumpers and application of separate sources
to the Motor Power terminals and to the Control Power terminals.
When a separate mains power is applied to the drive/controller, the internal control board remains powered
when the primary Motor Power source is disconnected. When operated in this configuration, the Control Power
input performs a “keep-alive” function. The keep-alive circuit maintains several important functions, including the
following:
Communications
Diagnostics
Motor position feedback
Brake relay in brake mode
Drive I/O signals