Stopping The Motor; If The Motor Does Not Start Up; Local And Remote Control - Siemens COMBIMASTER Reference Manual

COMBIMASTER & MICROMASTER Integrated
REFERENCE MANUAL

5.5 Stopping the Motor

Via the external on/off switch:
Setting the switch to OFF overrides the
setting on the potentiometer and causes the
motor to come to a controlled stop.

5.6 If the Motor Does Not Start Up

Check the LEDs on the side of the inverter:
LED State COMBIMASTER / MICROMASTER Integrated Status
Green Yellow
ON ON
ON OFF
Flashing Flashing
Flashing ON
ON Flashing
OFF ON
OFF Flashing
OFF OFF
If a fault occurs:
Switch off, disconnect and then reconnect
the power, and then switch on again.
Switch off if the fault condition persists.
Trips can be reset by using DIN3.

5.7 Local and Remote Control

The inverter can be controlled either locally
(default), or remotely via a USS data line
connected to the RS485 connector
(SK200).
When local control is used (P910 = 0), the
motor can only be controlled via the internal
potentiometer or the control terminals.
Control commands, setpoints or parameter
changes received via the RS485 interface
have no effect.
For remote control, the serial interface is
designed as a 2-wire connection for bi-
directional data transmission. Refer to
parameter P910 in System Parameters for
the available remote control options.
When operating via remote control the
inverter will not accept control commands
from the terminals. Exception: OFF2 or
OFF3 can be activated via parameter P051
to P053 (refer to parameters P051 to P053
in System Parameters).
Siemens plc. 1999
© | G85139-H1731-U300-D2
Mains power on, inverter not running (STANDBY)
Inverter running, as per control commands (ON)
Current limit warning
Inverter overtemperature
Motor overtemperature
Other fault (e.g. tripped)
Mains undervoltage
Mains supply fault (e.g. faulty external switch)
Via the potentiometer:
Turning the potentiometer counter-
clockwise until the input voltage drops
below 2 V causes the motor to slow to a
stop. If an external potentiometer is
applied, the input voltage must also be
below 2V to stop.
If a warning occurs:
Switch off, disconnect and reconnect the
power and then switch on again.
If the fault/warning persists, further
investigation requires an OPm2 or a serial
link connection.
31 COMBIMASTERS can be connected to
an external control unit at the same time
and can be addressed individually.
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