Parker Compax3 Series User Manual

Parker EME
Compax3 Accessories
192-120114 N5 C3I22T11 June 2008 347
9.1.1.1 Feedback systems for direct drives
The Feedback option F12 makes it possible to operate linear motors as well as
torque motors. Compax3 supports the following feedback systems:
Special encoder systems for
direct drives
Option F12
Analog hall sensors
 Sine - cosine signal (max. 5Vss; typical 1Vss)
90° offset
 U-V Signal (max. 5Vss; typical 1Vss) 120° offset.
Encoder
(linear or rotatory)
 Sine-cosine (max. 5Vss; typical 1Vss) (max.
400kHz) or
 TTL (RS422) (max. 5MHz)
with the following modes of commutation:
 automatic commutation (see page 347) or
 Digital hall sensors (e.g. DiCoder
©
)
Digital, bidirectional interface
 All EnDat 2.1 or EnDat 2.2 feedback systems
with incremental track (sine-cosine track)
 linear or rotary
 max. 400kHz Sine-Cosine
Distance coded feedback sy-
stems
 Distance coding with 1VSS - Interface
 Distance coding with RS422 - Interface (Enco-
der)
The motor performs automatic commutation after:
 Power on,
 A configuration download or
 An IEC program download
The time duration (typically 5-10 sec) of automatic commutation can be optimized
with the start current (see in the optimization display of the C3 ServoManager;
given as a percentage of the reference current). Note that values that are too high
will cause Error 0x73A6 to be triggered.
Typically the motor moves by 4% of the pitch length or, with rotary direct drives 4%
of 360°/number of pole pairs - maximum 50%.
Note the following conditions for automatic commutation
 During automatic commutation the end limits are not monitored.
 Actively working load torques are not permitted during automatic commutation.
 Static friction deteriorates the effect of automatic commutation.
 With the exception of missing commutation information, the controller/motor com-
bination is configured and ready for operation (parameters correctly assigned for
the linear motor/drive). The feedback and the direction of the field of rotation in
effect must match.
 The auto-commutating function must be adapted to fit the mechanics if necessary
during commissioning.

Parker Compax3 Series Specifications

General

Enclosure Rating	IP20
Control Modes	Speed, Torque, Position
Communication Interfaces	CANopen, EtherCAT
Feedback Options	Incremental Encoder, Resolver
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Cooling Method	Forced Air, Natural Convection
Relative Humidity	5 to 85 %, non-condensing
Operating Temperature	0 to +45 °C (derating may apply above 40°C)