Siemens SINAMICS V20 User Manual

Commissioning via the built-in BOP
5.6 Function commissioning
SINAMICS V20 Converter
120 Operating Instructions, 10/2019, A5E34559884-012
5.6.3.9 Setting the automatic restart function
Functionality
After a power failure (F3 "Undervoltage"), the automatic restart function (enabled using
P1210) automatically switches on the motor if an ON command is active. Any faults are
automatically acknowledged by the converter.
When it comes to power failures (line supply failure), then a differentiation is made between
the following conditions:
● "Line undervoltage (mains brownout)" is a situation where the line supply is interrupted
and returns before the built-in BOP display has gone dark (this is an extremely short line
supply interruption where the DC link hasn't completely collapsed).
● "Line failure (mains blackout)" is a situation where the built-in BOP display has gone dark
(this represents a longer line supply interruption where the DC link has completely
collapsed) before the line supply returns.
Setting parameters
Parameter
Function
Setting
P1210 Automatic
restart
This parameter configures automatic restart function.
= 0: Disabled
= 1: Trip reset after power on, P1211 disabled
= 2: Restart after mains blackout, P1211 disabled
= 3: Restart after mains brownout or fault, P1211 enabled
= 4: Restart after mains brownout, P1211 enabled
= 5: Restart after mains blackout and fault, P1211 disabled
= 6: Restart after mains brown- /blackout or fault, P1211 enabled
= 7: Restart after mains brown- /blackout or fault, trip when P1211 expires
= 8: Restart after mains brown- /blackout with F3 and leave an interval in seconds determined
by P1214, P1211 disabled
= 9: Restart after mains brown- /blackout with F3 during the attempt time determined by P1214,
P1211 disabled
= 10: Restart after mains brown- /blackout with F3 during the attempt time determined by P1214
or manual fault acknowledgement, P1211 disabled
P1211 Number of
restart at-
tempts
This parameter specifies number of times converter will attempt to restart if automatic restart
P1210 is activated.
Range: 0 to 10 (factory default: 3)
P1214 Restart time
interval
This parameter has either of the following functions:
• Specifying the restart interval when P1210 = 8
• Specifying the total restart attempt time when P1210 = 9 or P1210 = 10
Range: 0 to 1000 (factory default: 30)

Siemens SINAMICS V20 Specifications

General

Power Range	0.12 kW to 30 kW
Overload Capacity	150% for 60 seconds
Protection Class	IP20
Storage Temperature Range	-40°C to +70°C
Altitude	Up to 1000 m without derating
Input Voltage	3AC 380 V to 480 V
Output Voltage	0 V to Input Voltage
Control Modes	V/f control
Ambient Temperature Range	-10°C to +60°C
Relative Humidity	5% to 95%, non-condensing
Communication Interfaces	Modbus RTU
Braking Resistor	Optional external