Nord Drivesystems NORDAC LINK SK250E-FDS - Page 54

NORDAC LINK (SK 250E-FDS ... SK 280E-FDS) – Users Manual for Frequency Inverters as Field Distributors
54 BU 0250 en-3021
LED
No. Colour Description Signal status Meaning
2
Dual
Red/green
CU4 status
Off
Module (SK CU4-…) not ready for
operation,
• no control voltage
• no SK CU4-… module installed
Note: If a type SK CU4-IOE module is installed, the
LED also remains off.
Green On
Cyclic process data traffic in operation
Details: P173, bit 1
Flashing
green
2 Hz
The module is initialised, there is no cyclic
process data traffic.
Details: P173, bit 0
Flashing red
Flash
(1 x 0.25 s every
2.5 s)
• SK CU4-EIP, -ECT, -POL:
"Timeout external bus"
• SK CU4-CAO:
"Timeout node guarding (watchdog
NMT master)"
• SK CU4-PBR:
"Timeout node guarding (watchdog
PROFIBUS DP master)"
• SK CU4-DEV:
"Timeout (DeviceNet monitoring or time
set in parameter P151")
• SK CU4-PNT:
"PROFINET Timeout"
Details: for SK CU4-PNT: P173 bit 4-6, otherwise
P173, bit 2
Double flash
(2 x 0.25 s every
2.5 s)
• SK CU4-EIP, -ECT, -POL, -CAO, -
PBR:
"Timeout according to P151”
• SK CU4-CAO:
"Incorrect DIP switch setting“
• SK CU4-PNT:
– "Process data (CTW) timeout"
– "Hardware error CAN"
– "Hardware error IO"
Details: for SK CU4-PNT: P173 bit 4-6, otherwise
P173, bit 3
2 Hz
• SK CU4-EIP, -ECT, -POL:
"ASIC not accessible“
• SK CU4-CAO, -DEV:
„Warning“
• SK CU4-PBR:
„Bus interface system error“
Details: P173, bit 4
Red On
• SK CU4-EIP, -ECT, -POL:
"General configuration error“
• SK CU4-CAO, -DEV:
„Bus OFF“
Details: P173, bit 5