3 Communication with the controller
3.6 Ethernet over EtherCAT (EoE)
43
Lenze · i700 servo inverter · reference manual · DMS 3.0 EN · 06/2016 · TD06
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3.6.4.6 Telegram example 3: Setting the LV warning threshold in the i700 (write request)
The warning threshold for the low-voltage detection (LV) is to be set in the i700 servo inverter to
400 V.
• Object to be written: 0x2540:2
Request
• SDO command (GSV) = 0x83 = "Write parameter"
• GCI Message Qualifier (GMQ) = 0x00 = 0b00000000 = "Request"
• Transaction ID (GTI) here "42" (optional consecutive number 0 ... 255)
• Length of the user data (SIZE) = 0x0014 = 20 bytes
GCI header
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
GMT GSV GMQ GTI SIZE SIZE res res
0x01 0x83 0x00 0x2A 0x14 0x00 0x00 0x00
Fixed Write
parameters
Request Transactions ID Length of the user data = 20 bytes Reserved
User data area P0
Byte 1 Byte 2 Byte 3 Byte 4
Reserved Data type Reserved
0x00 0x00 0x06 0x00
UNSIGNED_16
User data area P1 User data area P2
Byte 1 Byte 2 Byte 3 Byte 4 Byte 1 Byte 2 Byte 3 Byte 4
Index Reserved Subindex Reserved
0x40 0x25 0x00 0x00 0x02 0x00 0x00 0x00
Index = 0x2540 Subindex = 2
User data area P3 User data area P4
Byte 1 Byte 2 Byte 3 Byte 4 Byte 1 Byte 2 Byte 3 Byte 4
Parameter value Reserved
0x90 0x01 0x00 0x00 0x00 0x00 0x00 0x00
Value to be written = 0x0190
= 400 [V]
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