NORD Drivesystems BU0530 - Manual (Page 32)

Functional safety with NORD SK 500E frequency inverters
32 BU 0530 GB-3712
In deviation from the illustration above, from size
5 and above, the position of terminal block X8 for
the connection of the safe pulse block is located
on the underside of the device (motor connection
side).
Connection data:
Frequency inverter Sizes 5 ... 7
Rigid cable cross-section 0.2 … 6mm²
Flexible cable cross-section 0.2 … 4mm²
AWG standard AWG 24-10
Tightening torque
for screw terminals
0.5 … 0.6Nm
Nominal ratings of safe pulse block
Terminal X8:86
(output - provision of +24V)
+24 V
(max. 300mA)
Terminal X8:87 GND
Terminal X8:89
(Input: “Safe pulse block”)
+24 V ± 25%
100mA (AV) (Size 5 - 6)
140mA (AV) (Size 7)
400mA (peak) after switching-on or after
a test pulse from an OSSD
Terminal X8:88 GND