2.8 Global Stop and Start Inputs (Optional)
This inputs allow to switch off the outputs channels (emergency stop) or to switch on all
power supply outputs (e.g. used for maintenance) .
DSUB25 female
Pin Signal
Comment
1
NC
reserved
14
NC
reserved
2
NC
reserved
15
NC
reserved
3
NC
reserved
16
NC
reserved
4
NC
reserved
17
NC
reserved
5
NC
reserved
18
NC
reserved
6
NC
reserved
19
NC
reserved
7
NC
reserved
20
NC
reserved
8
NC
reserved
21
NC
reserved
9
NC
reserved
22
NC
reserved
10
NC
reserved
23
NC
reserved
11
NC
reserved
24
NC
reserved
12
STOP
reserved
25
GND
Ground of the aux. supply, connected to USB ground
13
START
Inhibit input
Table 6: Global Stop and Start Connector Pin Assignment
The signals shall be connected by a dry contact (e.g. relay), and must not be connected to
other potentials.
The input has an internal 330 Ω pull-up resistor to 5V and an input impedance of 1 kΩ.
Signal
Functionality
STOP
If this signal is connected to GND (dry contact close), all power supply
outputs are switched off. This functionality has priority over all other
functions, it is not possible to switch outputs on in this state
START
If this signal is connected to GND (dry contact close), all power supply
outputs are switched on. They will only be switched off in case of an
emergency switch off caused by the supervision logic of the power supply.
If this signal is not connected (dry contact open), power supply outputs
may be switched on/off via SNMP or with the display control.
8. June 2010
6
*00679.A1