X21 Terminals: Smart Line Module - Siemens SINAMICS S120 Equipment Manual

7.3.4

X21 terminals: smart line module

Table 7-2 Terminal block X21
Terminal
1
2
3
4
Max. connectable cross-section: 1.5 mm
Type: Screw terminal 1 (see Spring-Loaded Terminals/Screw Terminals)
Note
For operation, 24 V DC must be connected to terminal 3 and ground to terminal 4. When
removed, pulse inhibit is activated, feedback is deactivated and the bypass relay drops out. If
the Line Module is not disconnected from the line supply when the EP terminal is deactivated
(e.g. a main contactor is not installed), the DC link remains charged.
NOTICE
If a drive line-up is switched off by means of the line disconnecting device, the voltage at
terminals 3 (EP +24 V) and 4 (EP M) must be interrupted beforehand. This can be carried
out using a leading breaking auxiliary contact (≥ 10 ms), for example.
This protects external loads located parallel to the drive on the same switching component.
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4
Designation
DO: Ready
DO:
Prewarning
DI: Enable pulses
DI: Enable pulses ground
2
Smart Line Modules (5 kW and 10 kW) with cold plate
Technical specifications
Checkback: Smart Line Module ready
The signal switches to high level when the following
conditions have been met:
Electronics power supply (X24) OK
•
DC link is pre-charged
•
Pulses enabled (X21.3/.4)
•
No overtemperature
•
No overcurrent switch-off
•
DO: Prewarning
High = no prewarning
Low = prewarning
Alarm threshold overtemperature / I x t
•
No regenerative feedback capability due to a line fault
•
[only monitored when feedback is activated (see
terminal X22.2)]
Voltage 24 V DC
Current consumption: 10 mA
Isolated input
7.3 Interface description
167