25
With the program launch, the Ready signal and OK / not OK is set on low level. The follow-
ing high-level of OK or not OK signals the end of screwdriving cycle.
IMPORTANT
The start signal must be at least 150 ms on LOW between two screw as-
semblies.
Figure 7: Burst
7.6.2.5 Standard Communication higher level controller – Emergency Stop 2
Channel
Basic requirements:
• AST11 type 390041 B or 390042 B or the controller has to be equipped with the
hardware-module 385521 A (17.9 Hardware-Module)
• While the sequence controller is booting the relay must be energized (Emergency-
Stop high) in order to enable the screwdriver to initialize itself
IMPORTANT
The relay must only be switched on without any load!
Only after 100 ms past switching on the relay the Program-Start must be
set!
Communication:
Screwdriving cycle without Emergency-Stop-Situation:
1. Request a Ready-Signal – Pin 15 high and Normally Closed Contact low
2. Signal high to input Program-Start – Pin 1
3. Request a OK or NOT OK – Pins 13 und 14
4. Request a Ready-Signal – Pin 15 high
5. Set Signal low to input Program-Start
6. Continue according to point 1 – new screwdriving cycle
With the program launch, the Ready signal as well as OK / not OK is set on low level. The
following high-level of OK or Not OK signals the end of screwdriving cycle.
Emergency STOP situations:
1. Set Emergency-Stop-Signal to low (as long as the Emergency-Stop is active the Nor-
mally Closed Contact is on high-level )
2. Set Program-Start to low (can be set at the same time with point 1)
3. OK / NOT OK and Ready change from low to high
4. In order to reset the Emergency-Stop-Situation, set Emergency-Stop to high
5. Request a Ready-Signal high and Normally Closed Contact low
ready
O:K: / NOT O.K.
program start
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