SINUS PENTA
PROGRAMMING GUIDE
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23. TIMERS MENU
23.1. Overview
The Timers menu allows setting enable and disable delay times for digital inputs/outputs.
NOTE
For the ENABLE-A and ENABLE-B digital inputs, no disable delay is allowed, because
their logic status is utilized directly by the hardware activating IGBT switching; when no
ENABLE-A, ENABLE-B
command is sent, the output power stage is instantly
deactivated.
NOTE
The ENABLE-A and ENABLE-B inputs are allocated to the STO function. If this safety
functionality is to be adopted, the control mode and the con
trol circuit of these signals
must be accomplished as per the Safe Torque Off Function - Application Manual.
That manual also includes a detailed validation procedure of the control configuration of
the STO function to be executed upon first start-
up and also periodically at yearly
intervals.
NOTE The reset function for the alarms on the leading edges of MDI3 is not delayed.
NOTE Any auxiliary alarm set to the digital inputs is not delayed.
NOTE
Five timers are available; the use can set an enabling/disable delay for each of them.
The same timer may also be assigned to multiple digital inputs/outputs.
NOTE The ENABLE-SW function cannot be delayed.
Example 1:
The drive enable (MDI1 START) depends on a signal coming from a different source. An activation delay of 2 seconds
and a deactivation delay of 5 seconds are needed. To do so, set two delay times for activation and deactivation for the
same timer and assign it to MDI1 (START) digital input. In the example below, timer 1 is used.
Timer assigned to MDI1 (START)
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