7 Drive Machine Data (SIMODRIVE Drive MD) 07.97
7.3.2 Drive MD (data description)
Timer motor temperature alarm
1603
Default value Lower input limit Upper input limit Units
240 0 600 s
Active
at once
Input of timer for the motor temperature alarm. When the value set in "Motor temperature
warning" (MD 1602) is exceeded, a message is transferred to the SERVO and a time monitor
activated. If the timer runs out before the temperature drops below the limit, the drive initiates
a generator braking operation and suppresses the transistor drive signals for the appropriate
axis after MD 1404 (pulse suppression) in conjunction with MD 1403 (creep speed).
Note:
Changing the timer setting will not influence a time monitoring function already in progress
(counter started). The change will become applicable when the motor temperature has
dropped below the warning limit (MD 1602).
DC link undervoltage warning threshold
1604
Default value Lower input limit Upper input limit Units
200 0
600
680 (as from SW 6)
V
Active
at once
Input of DC-link undervoltage warning threshold. When the voltage drops below this value, a
message is sent to the SERVO. This message is output on the 1st page of the FDD service
display: DC link "off".
Timer n controller at fixed stop
1605
Default value Lower input limit Upper input limit Units
200.0 20.0 10 000.0 ms
Active
at once
Input of "Speed controller at fixed stop" timer. The status of the current at the current setpoint
limit is monitored. In the event of a fault, the control pulses for the power section transistors
are suppressed on the drive side when the timer setting has expired.
Caution:
When MD 1605 is set to a value lower than the setting in MD 1404 (timer pulse suppression),
the generator-mode braking operation may be aborted with error message "Speed controller at
fixed stop"; the drive then coasts to a standstill.
Threshold n controller at fixed stop
1606
Default value Lower input limit Upper input limit Units
8 000.0/30.0 0.0 50 000.0 rev/min
Active
at once
Input of speed threshold for "Speed controller at fixed stop" alarm (see MD 1605 for details).
The default setting depends on the motor type (FDD ˆ=8000, MSD ˆ=30) and is parameterized
by the drive configuration during start-up.
7–136 ©
Siemens AG 1992 All Rights Reserved 6FC5197- AA50
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