ABB ACS320 User Manual

192 Actual signals and parameters
 Group 21: Start/Stop
This group defines how the motor starts and stops. The drive supports several start
and stop modes.
Group 21: Start/Stop
Code Description Range Resolution Default S
2101
START FUNCTION
1…7 1 6
Selects the motor start method.
1 = AUTO – The drive starts the motor instantly from zero frequency. If flying start is
required, use selection SCAN START.
2 = DC MAGN – The drive pre-magnetizes the motor with DC current before the start.
The pre-magnetizing time is defined by parameter 2103 DC MAGN TIME.
Note: Starting to a rotating machine is not possible when DC MAGN is selected.
WARNING! The drive will start after the set pre-magnetizing time has passed
even if the motor magnetization is not completed. Ensure always in applications
where a full break-away torque is essential, that the constant magnetizing time is long
enough to allow generation of full magnetization and torque.
4 = TORQ BOOST – Torque boost should be selected if a high break-away torque is
required.
The drive pre-magnetizes the motor with DC current before the start. The pre-
magnetizing time is defined by parameter 2103 DC MAGN TIME.
Torque boost is applied at start. Torque boost is stopped when output frequency
exceeds 20 Hz or when it is equal to the reference value. See parameter 2110
TORQ BOOST CURR.
Note: Starting to a rotating machine is not possible when TORQ BOOST is selected.
WARNING! The drive will start after the set pre-magnetizing time has passed
although the motor magnetization is not completed. Ensure always in
applications where a full break-away torque is essential, that the constant magnetizing
time is long enough to allow generation of full magnetization and torque.
6 = SCAN START – Frequency scanning flying start (starting the drive connected to a
rotating machine). Based on frequency scanning (interval 2008 MAXIMUM
FREQ…2007 MINIMUM FREQ) to identify the frequency. If frequency
identification fails, DC magnetization is used (see selection DC MAGN).
7 = SCAN + BOOST – Combines scanning start (starting the drive connected to a
rotating machine) and torque boost. See selections SCANSTART and TORQ
BOOST. If frequency identification fails, torque boost is used.
2102
STOP FUNCTION
1, 2 1 1
Selects the motor stop method.
1 = COAST – Selects cutting off the motor power as the stop method. The motor
coasts to stop.
2 = RAMP – Selects using a deceleration ramp
• Deceleration ramp is defined by 2203 DECELER TIME 1 or 2206 DECELER
TIME 2 (whichever is active).

ABB ACS320 Specifications

General

Overload Capacity	150% for 60 seconds
IP Rating	IP20
Frame Size	R1 to R3
Enclosure Rating	IP20
Frequency Range	0 to 500 Hz
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overload, Short circuit, Ground fault, Overtemperature
Fieldbus Communication	Modbus RTU, PROFIBUS DP, CANopen
Communication Interfaces	RS485
Operating Temperature	-10 to +50 °C (14 to 122 °F)
Storage Temperature	-40°C to +70°C
Humidity	Less than 95% (non-condensing)
Supply Voltage	200 V to 240 V (±10%), 380 V to 480 V (±10%)
Input Voltage	200 V to 240 V (±10%), 380 V to 480 V (±10%)