Parker PDHX-E Series, User Manual

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T2.0 Delay 2 seconds
NWHILE End of WHILE - jump to WHILE
command
Drive Energise/De-energise Function
Energising and de-energising the drive is subject to the commands given and error status as
follows:
The drive will energise if:
The ST0 or ON command is given when the WATCHDOG signal is inactive.
The drive will de-energise if :
The ST1 or OFF command is given.
The WATCHDOG signal become operative.
The de-energising signal must be restored, then the ST0 or ON command must be given to
re-energise the drive.
Homing Function
The GH command causes the motor to rotate in the direction and at the speed specified until
the home position is reached. In practice, it continues a little beyond this point but you can
locate the home position accurately by then using the commands:
MPA D0 G
(The GH command always makes the home position zero)
The SP command can be used after homing to change the home position from zero if
required.
If the home position is not found in the direction given in the GH command, the limit switch
position will be reached and the switch will be operated. The motor will then reverse and
seek the home position in the opposite direction. For recognised home detection, the home
switch must always be activated from the direction specified in the command (shown by the
arrow in Figure 7-2), so as illustrated in this figure, a limit switch reversal will take place if the
direction given in the GH command is away from the home position (GH+ in the illustration).
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