Emerson unidrive sp User Manual

Parameter
structure
Keypad and
display
Parameter x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance RFC mode
Unidrive SP Advanced User Guide 413
Issue Number: 10 www.controltechniques.com
9.5 Current feedback
Accuracy: 5% worst case, 2% typical.
Resolution: 10 bit plus sign
Full scale resolution is equivalent to 222% drive rated current (OI.AC
trip level)
9.6 Bandwidth
The following bandwidth values are for 12kHz PWM switching
frequency:
9.6.1 Speed loop
The speed loop bandwidth is 160Hz
9.6.2 Current loop
The current loop bandwidth is 1100Hz for the 3dB point, and 400Hz for
the 45°point.
1. The gain characteristic and associated 3dB point is most useful
where drive is used in an application where the current controller is
not included within an outer control loop.
2. The phase characteristic and associated 45° point is most useful
where the current controller is used within an outer control loop such
as a speed controller. The phase delay of the current controller has a
limiting effect on the response of the outer loop.

Emerson unidrive sp Specifications

General

Type	AC Drive
Storage Temperature	-40°C to +70°C
Communication Options	CANopen, Ethernet, Profibus, DeviceNet
Safety Features	Safe Torque Off (STO), Safe Stop 1 (SS1), Safe Operating Stop (SOS)
Overload	150% for 60 seconds
Enclosure	IP20
Output Voltage Range	0 - Input Voltage
Protection Features	Overcurrent, Overvoltage, Undervoltage, Short Circuit
Humidity	95% non-condensing
Cooling Method	Fan cooled
Dimensions	Varies depending on the power rating and enclosure type
Weight	Varies depending on the power rating and enclosure type
Input Voltage	200 VAC - 690 VAC ±10%