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Description of Functions
Table 9-7
Control Actions for "MDI" mode (examples), continued
Signal Name
Control action 2, change position during positioning
Transfer MDI block on-the-
fly (job no. 16)
Checkback signals:
Travel plus [FR+]
Travel minus [FR–]
Control action 3, stop during positioning with new start signal for resumed positioning
Control signal:
Stop [STP]
Checkback signals:
Travel minus [FR–]
Start enable [SFG]
Control signal:
Start [ST]
Checkback signals:
Travel minus [FR–]
Start enable [SFG]
Control action 4, stop during positioning with new start signal and new MDI block
Control signal:
Stop [STP]
Checkback signals:
Travel plus [FR+]
Start enable [SFG]
Transfer MDI block (job no.
6)
Transfer "delete residual
path" (job no. 11)
Control signal:
Start [ST]
Checkback signals:
Travel minus [FR–]
9-28
Level
If a new "MDI block on-the-fly" is transferred during posi-
tioning, the current positioning operation is canceled immedi-
ately, and the new positioning operation is started on-the-fly.
In this case, for example, this causes the direction to be
changed from [FR+] to [FR–].
If Stop is enabled during positioning, the axis stops. [FR–] is
reset, and [SFG] is activated. [BL] remains active and [PEH]
is not output, since positioning is not complete
If [ST] is initiated again, [FR–] and [SFG] are reset and posi-
tioning is completed.
Before the axis comes to a standstill, it is possible to restart
"through start".
If Stop is enabled during positioning, the axis stops. [FR+] is
reset, and [SFG] is activated.
When a new MDI block has been transferred, [ST] is enabled
again. "Delete residual path" is also enabled.
The axis deletes the residual path of the old positioning op-
eration, and starts executing the new traversing block.
[FR–] is enabled, and [SFG] is reset.
Note:
If no new "MDI block" is transferred, execution of the cur-
rent "MDI block" is repeated from the start.
Without "delete residual path", the interrupted positioning
operation would be continued (see control action 3)
FM 453 Servo Drive / Step Drive Positioning Module
Explanation
.
C79000-G7076-C453-01
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