Nord Drivesystems SK 530P - Page 46

Functional Safety – Supplementary manual for series SK 500P
46 BU 0630 en-2020
P499 Safety CRC
Setting range
0x0000.. 0xFFFF
Factory setting
{ 0 }
Description
A CRC is necessary for saving the parameter which is relevant for the functional
safety. NORDCON calculates the CRC automatically when this parameter is saved. If
the CRC is input by any other method it must be calculated manually. After inpu
t of
the CRC an error is triggered, in order to force a restart of the frequency inverter with
adoption of the parameter. A false CRC results in an error when the frequency inverter
is started.
Typical values for manual input:
Safety Digital Input
(P424)
Safety SS1 max. time
(P423)
Safety CRC
(P499)
No function
0.1
0xDACB
Disable Voltage
0.1
0x971E
Quick Stop
0.1
0x4161
Quick Stop
0.2
0x6097
Quick Stop
0.3
0xBA5C
Quick Stop
0.5
0xF54D
Quick Stop
0.7
0x247E
Quick Stop
1
0x4664
Quick Stop 2 0x6E9D
Quick stop
3
0x3493
Quick Stop
5
0xCD59
Quick Stop
7
0x3155
Quick Stop
10
0x19B4
Note
If the safety functions are used, the parameter must be provided with password
protection (P498).
This parameter cannot be reset to the default value with Load Factory Setting (P523),
but rather can only be reset manually.
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