Infeed: Switch Line Contactor For Load Condition; Infeed: Maximum Steady-State Dc Link Voltage Reached; Infeed: Dc Link Voltage Alarm Threshold - Siemens Sinamics S120 Diagnostic Manual

SINAMICS alarms
206700 <location>Infeed: Switch line contactor for load condition
Message value: -
Drive object: AFE_SINUMERIK_828, BIC_SINUMERIK_828, SIC_COMBI, SIC_SINUMERIK_828
Reaction: NONE (OFF2)
Acknowledge: IMMEDIATELY
Cause: For an ON command, the infeed line contactor should be switched under load.
Remedy: - do not load the DC link if the infeed has not issued an operating signal (r0863.0 = 1).
- after the infeed has been powered down, all power units connected to the DC link should be powered down. To real-
ize this, the operating signal of the infeed (r0863.0) must be suitably interconnected.
206800 <location>Infeed: Maximum steady-state DC link voltage reached
Message value: -
Drive object: AFE_SINUMERIK_828, SIC_COMBI, SIC_SINUMERIK_828
Reaction: NONE
Acknowledge: NONE
Cause: The DC link voltage setpoint has reached the maximum steady-state voltage parameterized in p0280.
The DC link voltage is increased by the modulation depth reserve controller for the following reasons:
- modulation depth reserve is too low (p3480).
- line supply voltage is too high.
- supply voltage (p0210) parameterized to be too low.
- excessively high setpoint for the reactive line current.
Remedy: - check the line supply voltage setting (p0210).
- check the line supply for an overvoltage condition.
- reduce the modulation depth reserve (p3480).
- reduce the reactive current setpoint.
See also: p0210 (Drive unit line supply voltage), p0280 (DC link voltage maximum steady-state), p3480 (Infeed mod-
ulation depth limit)
206810 <location>Infeed: DC link voltage alarm threshold
Message value: -
Drive object: AFE_SINUMERIK_828, BIC_SINUMERIK_828, SIC_COMBI, SIC_SINUMERIK_828
Reaction: NONE
Acknowledge: NONE
Cause: In operation, the DC link voltage has dropped to below the alarm threshold. The alarm threshold is obtained from the
sum of p0279 and r0296.
Possible causes include:
- line supply voltage dip or another line supply fault.
- overload of the infeed.
- for ALM: Incorrect controller parameterization.
See also: p0279 (DC link voltage offset alarm threshold), r0296 (DC link voltage undervoltage threshold)
Remedy: - check the line voltage and line supply quality.
- reduce the power drawn, avoid step-like load changes
- for ALM: Adapt the controller parameterization, e.g. using an automatic line supply identification (p3410 = 4, 5).
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Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
Alarms