Addi-Data APCI-8001, Commissioning Manual

Page: 45 / 57

CM / C
OMMISSIONING
M
ANUAL
45
Pin (SUB-D) Name Function Pin at P5
or X6
(FB)
1 R3-R Relay S3(4), P contact, CNC ready 1
2 R1-R Relay S1(3), P contact, release of power amplifier axis channel 1 3
3 R4-R Relay S4(1), P contact, release of power amplifier axis channel 2 5
4 R2-R Relay S2(5), P contact, release of power amplifier axis channel 3 7
5 Not connected 9
6 R3-S Relay S3(4), contact, CNC ready 2
7 R1-S Relay S1(3), contact, release of power amplifier axis channel 1 4
8 R4-S Relay S4(1), contact, release of power amplifier axis channel 2 6
9 R2-S Relay S2(5), contact, release of power amplifier axis channel 3 8
5.2.10 Connection and wiring instructions
5.2.10.1 Earth and current supplies
The xPCI-800x is divided up electrically into two zones. Each zone has its own reference potential, although
the different zones are electrically isolated from each other. The first zone contains the xPCI-800x system
logic (CPU, memory, etc), and the second zone contains the pulse acquisition (encoder), setpoint value
generation and the digital input-output logic. This separation offers maximised protection of the various
modules, prevents earth loops and circuits, and provides a high level of immunity to interference from
interfering signals, which are often spread from the drives via signal and earth connections.
5.2.10.2 Potential equalisation
Since the above-mentioned supply zones are completely electrically isolated from each other, potential
differences of several kV can occur between these zones. To prevent this, potential equalization should take
place between the individual zones. This can take place by earthing all supply voltages or through potential
equalisation networks on the xPCI-800x.
5.2.10.3
5.2.10.4 Fitting shields
All connections to the APCI-8001 / APCI-8008 must be shielded. The shields must be fitted on both sides on
the casing earth wire (not on an internal earth wire, such as pin 50 on X1). Therefore, for SUB-D connectors,
massive metal caps (not insulating plastic caps) must be used. Only through correct shielding of all
connections is interference-free operation, in particular of the counter inputs, ensured.