Delta ASDA-A2 Series User Manual page 267

A2
ASDA-
States of E-Cam
Engaging Conditions
(P5-88 Z Settings)
Lead Pulse Number
(Monitoring Variable
061)
7-36
Function of Clutch
Path 2

When E-Cam function is disabled (P5-88 X=0), the status of E-
Cam will return to Stop.
Path 3

When the lead pulse number set in P5-87 or P5-92 reached, ,
the status of E-Cam will change from Lead Pulse to Engaged.
Path 4

When disengaging conditions are satisfied (P5-88 U=4), the
status of E-Cam will change from Engaged to Lead Pulse.
When the electronic gear is disengaged, the status of E-Cam
will not change to Stop. It will change to Lead Pulse and the
lead pulse number at this time is set in P5-92 (this function is
only available for the firmware version V1.006sub04 and later
models).
Path 5

When disengaging conditions are satisfied (P5-88 U=1, 2, 6),
or when E-Cam function is disabled (P5-88 X=0), the status of
E-Cam will change from Engaged to Stop.
When E-Cam is in the status of Stop, this function is used to
determine the engaging timing (Path 1).
Three conditions to engage the clutch:
Z=0: Engage immediately when E-Cam function is enabled (When
P5-88 X=1)
Z=1: Engage when DI signal, CAM (DI=0x36) is ON.
Z=2: Any action of Capture function. E-Cam engaged after the
next position is captured.
The Capture function is designed to activate E-Cam because of its
high speed input. When the Capture function fetches the position,
it will bring the E-Cam function enforcement simultaneously.
Because the Capture operation is controlled by external control
command (hardware), and no delay occurs, this setting is suitable
for the application requires real time such as the master axis is
already operating before E-Cam is engaged.

When E-Cam is in the status of Lead Pulse, the master axis
needs to move for a certain distance and then E-Cam is able
to be engaged (Path 3). This movement is called as Lead
Pulse Number and it can be monitored by the monitoring
variable 061. The value of lead pulse number will descend
according to the input pulses of the master axis. When the
value of lead pulse number becomes 0, the status of E-Cam
will change to Engaged.

When the status of E-Cam changes to Lead Pulse by Path 1,
the lead pulse number is set in P5-87.

When the status of E-Cam changes to Lead Pulse by Path 4,
the lead pulse number is set in P5-92.

If the setting value of P5-87 and P-92 is 0, it indicates that
there is no lead pulse number and the status of E-Cam will
change to Engaged immediately.
+ / - signs indicates the direction of lead pulse. Please note that if
the polarity of the direction of lead pulse is set incorrectly, E-Cam
will not be engaged.
Chapter 7 Motion Control Functions
Revision September 2012