Speed Fbk Loss Alarm According To The Type Of Feedback - gefran SIEIDrive ADV200 Quick Start Up Manual, Specification And Installation

9.2.1 Speed fbk loss alarm according to the type of feedback

For the correct interpretation of the cause of the alarm trigger, it is necessary to transform the hex
Note !
code indicated in parameter 15.13 SpdFbkLoss code, PAR 2172 , in the corresponding binary and
verify in the encoder table that the active bits and related description are used.
Example with encoder Endat:
PAR 2172 = A0H
In the table "Speed fbk loss [22] alarm with absolute encoder EnDat" A0 is not indicated in the value
column.
A0 should be contemplated as a bitword with meaning A0 -> 10100000 -> bit 5 and bit 7 . The fol-
lowing causes simultaneously intervene:
- Bit 5 = 20H Cause: the SSI signal interferences cause an error in the CKS or parity.
- Bit 7 = 20H Cause: The encoder has detected an incorrect operation and communicates it to the
converter through the Error bit. Bits 16..31 present the type of incorrect encoder operation detected.
●
Bit Value Name
0 0x01 CHA
1 0x02 CHB
2 0x04 CHZ
●
Bit Value Name
3 0x08 MOD_INCR
●
Bit Value Name
3 0x08 MOD_INCR
(hex value)
Speed fbk loss [22] alarm with digital incremental encoder
Cause: no impulses or disturbance on incremental channel A.
Solution: Check the connection of the encoder-drive channel A, check the connection of the
screen, check the encoder supply voltage, check parameter 2102 Encoder 1 supply, check
parameter 2104 Encoder 1 input cfg.
Cause: no impulses or disturbance on incremental channel B.
Solution: Check the connection of the encoder-drive channel B, check the connection of the
screen, check the Encoder 1 supply voltage, check parameter 2102 Encoder 1 supply, check
parameter 2104 Encoder 1 input cfg.
Cause: no impulses or disturbance on incremental channel Z.
Solution: Check the connection of the encoder-drive channel Z, check the connection of the
screen, check the Encoder 1 supply voltage, check parameter 2102 Encoder 1 supply, check
parameter 2104 Encoder 1 input cfg, check parameter 2110 Encoder1signal check
Speed fbk loss [22] alarm with sinusoidal incremental encoder
Cause: voltage level not correct or disturbance on signals of incremental channels A-B.
Solution: Check the connection of the encoder-drive channels A-B, check the connection of
the screen, check the encoder supply voltage, check parameter 2102 Encoder 1 supply, check
parameter 2108 Encoder 1 signal Vpp.
Speed fbk loss [22] alarm with SinCos encoder
Cause: voltage level not correct or disturbance on signals of incremental channels A-B.
ADV200 • Quick start up guide - Specification and installation
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