Siemens MICROMASTER 440 User Manual

3 Functions Issue 10/06
MICROMASTER 440 Operating Instructions
186 6SE6400-5AW00-0BP0
3.12.3 OFF/braking functions
Parameter range: P1121, P1135, P2167, P2168
P0840 – P0849
r0052 bit 02
Warnings -
Faults -
Function chart number: -
The drive inverter and the user must respond to an extremely wide range of
situations and stop the drive. In this case, both requirements relating to operations
as well as drive inverter protective functions (e.g. electrical and thermal overload)
and man-machine protective functions have to be taken into account. As a result of
the different OFF/braking functions (OFF1, OFF2, OFF3) MICROMASTER can
flexibly respond to the requirements mentioned above.
OFF1
The OFF1 command is closely coupled to the ON command. When the ON
command is withdrawn, then OFF1 is directly activated. The drive is braked by
OFF1 with the ramp-down time P1121. If the output frequency falls below the
parameter value P2167 and if the time in P2168 has expired, then the inverter
pulses are cancelled.
t
P2168
t
P2167
O
peration
act
f
OFF1
P1082
f
max
r0052 Bit02
P1121
P1082
f
P1121
t
2
1AUS,down
⋅=
t
down,AUS1
Pulse
ncellation
f
2
Fig. 3-64 OFF1

Siemens MICROMASTER 440 Specifications

General

Power Range	0.12 kW to 250 kW
Output Voltage	0 V to Input Voltage
Output Frequency	0 Hz to 650 Hz
Control Modes	Vector control
Overload Capability	150% for 60 seconds
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overtemperature, Short Circuit, Ground Fault
Communication Interfaces	PROFIBUS, DeviceNet, CANopen, Modbus RTU
Enclosure Rating	IP20
Ambient Temperature	-10°C to +50°C
Input Voltage	200 V to 240 V (±10%), 380 V to 480 V (±10%)