Panasonic FP Series User Manual

Pulse output instructions
1086
Part III FP Instructions
F177_PulseOutput_
Home
Home Return
Description
See also:
 PulseOutput_Home_FB (see page 1176)
 PulseCo
ntrol_NearHome (see page 1209)
After a drive system has been switched on, there i
s a difference between the internal position value
(elapsed value) and the mechanical position of the axis; this difference cannot be predetermined.
The internal value must be synchronized with the actual position value of the axis. This is done by
means of a home return, during which a position value is registered at a known reference point
(home).
During execution of a home return instruction, pulses are continuously output until the home input
is enabled. The I/O allocation is determined by the channel used.
To decelerate movement when near the home position, designate a near home input and set bit 4
of the special data register storing the pulse output control code (sys_wHscOrPulseControlCode) to
TRUE and back to FALSE again.
The deviation counter clear output can be set to TRUE when home return has been completed.
Select one of two different operation modes:
 Type 0: The home input is effective regardless of whether or not there is a near
home input, whether deceleration is taking place, or whether deceleration has
been completed.
Without near home input:



f
t
0Hz
With near home input:
f
t
2
0Hz
1
3
5
4
6
1
Initial speed
4
Home input: TRUE
2
Target speed
5
Creep speed
3
Near home input: TRUE
6
Home input is effective at any time.
 Type 1: The home input is effective only after deceleration (started by near home
input) has been completed.
This instruction performs a home return according to the parameters in the specified DUT. Pulses
are output from the specified channel when the control flag for this channel is FALSE and the
execution condition is TRUE.

Panasonic FP Series Specifications

General

Mounting	DIN rail
Type	PLC
Communication Interface	RS-232, RS-485, Ethernet (depending on model)
Input Voltage	100-240V AC or 24V DC (depending on model)
Output Type	Relay, Transistor
I/O Points	Varies by model
Operating Temperature	0°C to 55°C
Dimensions	Varies by model
Weight	Varies by model