Parker Hannifin Manufacturing Srl user’s manual TPDM
6.6.3 Phasing procedure for encoder with EnDat, Hiperface or DSL digital interface
The procedure of encoder phasing is not necessary with Parker Hannifin Manufacturing’s motor, but
when the system requires the phasing, the procedure 1 and 2 of the phasing is the same for
incremental encoder (see paragraph “Encoder phasing”) and it must finalized as follows.
With EnDat, Hiperface or DSL digital interface, single turn or multiturn, after the phasing is possible
to save this information so at every start up the phasing procedure isn’t necessary; for take it, to bring
the motor shaft in the position that Pr28=0, disable the drive and save with command b99.9=1. After
this command is necessary start again the drive.
Alternative to this procedure, disable the drive and disconnect the motor cable, the motor can rotate
even if it is installed inside the equipment (any emergency brake disabled), with motor is available to
supply a positive tension between phase B and C respect the phase A (it’s important to verify that the
phase-phase resistance limits the current to the rated value) so that the shaft aligned (only for S.B.C.
motor, for other type see the paragraph “ motor phases”), set the command b99.9=1 and start again
the drive.
6.6.4 Motor phases
In this paragraph is showed a procedure not necessary for the motors of the S.B.C. Division, essential
for the motor connection, because allows to find the motor phases (A=U, B=V, C=W).
The procedures shown in this document are dangerous for the operator
and could damage the motor under test. A qualified and trained
personnel with advanced skills in electronics and drive technology is
therefore needed, the operator must be sure that these procedures are
proceeding in safety condition.
Necessary instruments:
power supply 24Vdc with output current equal or higher to the rated current of the motor
under test. Verify that the phase-phase resistance of the motor limits the current at the rated
value with 24V voltage applied.
Necessary requisites:
motor free without load and inertia applied.
Procedure:
connect the positive pin of the 24Vdc supply voltage at one motor phase (assign name A at
this phase). Connect the negative pin at one of the other phases (at random). Feeding the
circuit, the rotor will turn and to assume a new position. Observing the motor shaft, move the
negative pin of the 24Vdc voltage on the other phase: if the rotor turns counter-clockwise
(watching frontally the drive shaft), the phase connected to the negative pin is the phase C,
otherwise if the rotor turns clockwise this phase connected to the negative pin is the phase B
(*).
Result:
after to have connected the motor and the device of feedback to the drive, the counter of the
feedback increases if the motor turns clockwise, and decrease if turns counter-clockwise
sense.
(*) To avoid to damage the motor winding, to power the circuit only for the necessary time.
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