Siemens SINUMERIK 840D sl Function Manual page 1584

Z1: NC/PLC interface signals
19.1 Various interface signals and functions (A2)
DB31, ...
DBX94.0 Motor temperature prewarning
Edge evaluation: No
Signal state 1 The motor temperature has exceeded the warning threshold (p0604) configured in the drive.
Note
If the motor temperature remains too high for longer than the parameterized time (p0606), a fault is
output, the drive is stopped and the pulse enable removed.
If the motor temperature falls below the warning threshold (p0604) again before the time has expired
(p0606), the interface signal is reset.
Signal state 0 The motor temperature is below the warning threshold (p0604).
Remark The current motor temperature is displayed on the user interface at:
Operating area "Diagnostics" > "Service display: Axis/spindle"
Corresponding to ... DB31, ... DBX94.1 (heat sink temperature prewarning)
Additional references See DB31, ... DBX94.1 (heat sink temperature prewarning)
DB31, ...
DBX94.1 Heat sink temperature prewarning
Edge evaluation: No
Signal state 1 The heat sink temperature of the power semiconductors has exceeded the parameterized warning
threshold (p0294).
Note
The parameterized reaction (p0290) is performed in the drive. If the temperature violation remains,
a fault is output after approx. 20 s, the drive is stopped and the pulse enable removed.
Signal state 0 The drive module heat sink temperature monitoring has not responded, i.e. the temperature is below
the warning threshold.
Remark The interface signals DB31, ... DBX94.0 and .1 are derived from the following signals of the cyclic
drive telegram:
● Case 1: Temperature warning in the message word
● Case 2: Warning of warning class B (interface mode "SIMODRIVE 611U", p2038 = 1)
The interface signals are derived from the warning of warning class B if there is no specific information
from the message word.
An alarm is displayed. Alarm number = 200.000 + alarm value (r2124)
Additional references ● S120 Commissioning Manual, Section "Commissioning" > "Temperature sensors for SINAMICS
● S120 Function Manual, Section "Monitoring and protective functions"
● S120 List Manual
● SINUMERIK Diagnostics Manual
1584
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
– DB31, ... DBX94.0 ≙ MELDW, bit 6 (no motor overtemperature warning)
– DB31, ... DBX94.1 ≙ MELDW, bit 7 (no thermal overload in power unit warning)
DB31, ... DBX94.0 == 1 and DBX94.1 == 1, if the following applies:
Cyclic drive telegram, ZSW1: Bit 11 == 0 and 12 == 1 (warning class B)
components"
– MELDW, bit 6 ≙ BO: r2135.14 → function diagram: 2548, 8016
– MELDW, bit 7 ≙ BO: r2135.15 → function diagram: 2548, 2452, 2456, 8016
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions