Sevcon Dragon8 - Reading Status Variables

Doc. # 177/52705
Rev. 1.0
80
Reading status variables
All status information is contained either in the Dragon8 Object Dictionary, or transmitted using either
H-Protocol or I-Protocol messages. Most service information can be accessed using SDOs. Some can be
mapped to PDOs for continuous transmission to remote nodes such as displays and logging devices.
Motor Data
The following motor data is available on H-protocol:
• Motor torque, speed, battery current
• Available drive and brake torque
• Motor temperature
• Motor control and status words
The following motor data is also available on H-protocol debug messages
• Motor slip frequency, currents and voltages
• Additional motor debug information
Customer Input Data
The following customer input data is available on I-protocol:
• Digital input states
• Analogue input voltages
Device Data
The following device data is available on H-protocol:
• Device temperature
• Power frame (DC link) voltage
• Highest priority fault
Identification and version
Read identification and version information at:
• 1008
h
– Controller name.
• 1009
h
– Hardware version.
• 100A
h
– Software version.
• 1018
h
– Identity object. Contains CANopen vendor ID, product code, CANopen protocol revision,
and controller serial number.
• 5500
h
– NVM (EEPROM) format.
• 5501
h
– Internal ROM checksum.
Supply monitoring
The controller measures the following supply voltages: