Specifications

Chapter 6: Programming Features
Firmware – S2011 and S3012
Revision: 1 (9/98) 52 © Saftronics, Inc.
§ Timer Function (Setting: 20)
When the timer function input is longer than ON-delay timer (n077), the timer function output closes.
When the timer input is open for longer than OFF-delay timer (n078), the timer function output opens.
Figure 43 Timing Diagram of Timer Function
§ Analog Reference Sample/Hold Selection (Setting: 22)
If input terminal is closed for 100ms or more, the analog frequency reference is sampled; when it opens, the analog
frequency reference is held.
Note: t1, t3 : Reference is held at 100ms or more.
t2 : Reference is not held at less than 100ms.
Figure 44 Sample of Hold Selection (Analog Reference)
§ UP/DOWN Command (Setting: n039 = 25)
With the FWD or REV RUN command entered, accel/decel is enabled by inputting the UP or DOWN signals to
control circuit Terminals S5 and S6 without changing the frequency reference, so that operation can be performed at
the desired speed.
When UP/DOWN commands are specified by n039, any function set to n038 becomes disabled; Terminal S5
becomes an input terminal for the UP command and Terminal S6 for the DOWN command.
Table 15 Timing Diagram of UP/DOWN Command Input
Control Circuit Terminal S5 (UP command) Closed Open Open Closed
Control Circuit Terminal S6 (DOWN command) Open Closed Open Closed
Operation Status Accel Decel Hold Hold
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