Power supply modules
Control terminals
6
259
EDS94SPP101 EN 7.1
Digital inputs, digital outputs
Terminal X12 Labelling Description
GOI GND digital out/in
DI1 External control of the brake chopper; its only purpose is to
synchronise the brake choppers if a second power supply module is
used.
DO1 Mains OK
DO2 Brake chopper active
DO3 Short circuit in brake chopper
SSP9400X12
DO4 Heatsink overtemperature
Terminal data
Conductor cross-section Tightening torque
[mm
2
] [AWG] [Nm] [lb-in]
Flexible
0.2 ... 2.5
24 ... 12 Spring terminal
With wire end
ferrule
Stripping length / contact length: 10 mm
Synchronisation
The device-internal brake chopper operates automatically and independently even if the
control inputs are not wired.
Depending on the selected mains voltage, the brake resistor is connected if the DC-bus
voltage is exceeded (e.g. due to excessive braking energy).
If the brake choppers of power supply modules in a DC-bus connection need to be
synchronised, proceed as follows:
1. The 24-V supply of the control card (X11) must be independent of the mains voltage
at the mains connection and switched on.
2. All power supply modules of the DC-bus connection must have the same brake
chopper threshold (according to the mains).
3. TheDO2(X12)digitaloutputofthemasterpowersupplymoduleneedstobewired
to the DI1 (X12) digital input of every other power supply module of the DC-bus
connection. The GOI connections (X12) of all power supply modules of the DC-bus
connection must be interconnected.
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