ABB ACS355 User Manual

334 Fieldbus control with fieldbus adapter
 Fieldbus reference scaling
Fieldbus references REF1 and REF2 are scaled for the DCU profile as shown in the
following table.
Note: Any correction of the reference (see section Reference selection and
correction on page 332) is applied before scaling.
Note: The settings of parameters 1104 REF1 MIN and 1107 REF2 MIN have no
effect on the reference scaling.
 Reference handling
Reference handling is the same for the ABB drives profile (embedded fieldbus) and
DCU profile. See section Reference handling on page 311.
 Actual value scaling
The scaling of the integers sent to the master as Actual values depends on the
selected function. See chapter Actual signals and parameters on page 175.
Reference Range Reference
type
Scaling Remarks
REF1 -214783648
…
+214783647
Speed or
frequency
1000 = 1 rpm / 1 Hz Final reference limited by
1104/1105. Actual motor speed
limited by 2001/2002 (speed) or
2007/2008 (frequency).
REF2 -214783648
…
+214783647
Speed or
frequency
1000 = 1% Final reference limited by
1107/1108. Actual motor speed
limited by 2001/2002 (speed) or
2007/2008 (frequency).
Torque 1000 = 1% Final reference limited by
2015/2017 (torque 1) or
2016/2018 (torque 2).
PID
reference
1000 = 1% Final reference limited by
4012/4013 (PID set 1) or
4112/4113 (PID set 2).

ABB ACS355 Specifications

General

Input Voltage	200 V to 240 V AC, 380 V to 480 V AC
Frequency	47 Hz to 63 Hz
Control Method	Scalar control
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication Interfaces	Modbus RTU, CANopen
Enclosure Rating	IP20
Operating Temperature	-10°C to +50°C (14°F to 122°F)
Storage Temperature	-40°C to +70°C (-40 to +158 °F)
Humidity	95% RH (non-condensing)
Altitude	Up to 1000 m (3280 ft) without derating