Instruction Manual PSx3xxC
8
If the device names are given
without
the diameter of the output shaft (-8, -
14), the relevant information is valid for
all
offered output shafts (applies
throughout the document).
‘x’ in the device name stands for a number in the range 0..9. ‘xx’
in the
device name stands for a number in the range 10..999.
Important: Always replace the protective cap after setting the address.
This will prevent dust and contaminants from entering the device.
2.5
Start-up
Unlike previous versions, the PSx3xxC does
not
have to be run through an initial
reference loop prior to positioning after the supply voltage has been hooked up. A
positioning or manual run can begin immediately.
Positioning sequence (with loop)
The PSx3xxC differs between the following steps of a positioning sequence
(Presumption: the target position is always approached through forward motion):
1.
New position value is larger than the current value: position approached directly.
2.
New position value is smaller than the current value: the device reverses 5/8 of
one rotation and approaches the exact position after resuming forward motion.
3.
New position value after reverse run without loop: the device always approaches
the position by moving in forward direction; if necessary, it will first reverse by 5/8
of a rotation.
Once the target position has been reached, the device compares it to the internal
absolute encoder status. If a discrepancy is detected, t
he device then sets the “error”
bit (bit 9 in the status word).
Positioning sequence (without loop)
The “positioning without loop” mode is used primarily for moving the small distances
involved in fine adjustments. In this case, each position is approached directly. This
does NOT eliminate any play present in the spindle in question. The PSx3xxC internal
gear backlash does not play a role in this case, as position data are acquired directly
at the output shaft.
Runs which involve specifically a block run (e.g. reference runs on block),
may only be started with reduced torque (max. torque max. 10% of the
nominal torque).
Underwater usage of the PSW is not allowed.
Summary of Contents for PS*3**C series
Page 32: ...Instruction Manual PSx3xxC 32 ...
