
Device functions
SIMATIC - ET 200pro motor starters
GWA 4NEB 950 5661-02 DS 06
10-39
10.12 Emergency start
Description
’Emergency start’ enables a restart despite an internal shutdown command.
Emergency start is possiblewhen
• ’ON switching command present for the motor. The motor is switched on
even if the reason for the shutdown persists.
• ’ON switching command’ present for brake output. This is switched on via
the emergency start (’Enable delay of brake when starting’ parameter is
taken into account).
Emergency start is not possible when
• ’OFF switching command’ present
• ’Device fault’ present
Signaling bit: ’Fault during self-test’, ’Switching element faulty’
• Intrinsic safety function of the motor starter has been triggered
Signaling bit: ’Overload switching element’
• Switched / unswitched 24V-S DC / 24V-NS DC supply voltage missing
Signaling bit: ’Power supply switching element missing’,
’Electronics power supply too low’
• Blocking protection has triggered
Signaling bit: ’Motor blocking shutdown’
• Process image fault present
Signaling bit: ’Process image fault’
Control options for emergency start
–Commands ’Emergency start ON’, ’Emergency start OFF’
– Parameter ’n input – action’ –> ’Emergency start’ parameterized
– Bit DO 0.4 ’Emergency start’ in the process image.
Commands
Emergency start can be controlled via the following commands:
10.12.1 Message
’Emergency start’ delivers the following message:
Commands
Emergency start ON
Emergency start OFF
Table 10-23: Emergency start – commands
Message Description
Emergency start active Present when the emergency start is
active, even when the motor and brake
output are switched off
Table 10-24: Emergency start – message
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