SECTION TWO – WIRING AND INSTALLATION
DS2000 USER’S MANUAL (rev.C)
2.36
2.13 STARTING SEQUENCE TIMES
t
1
≥ 3 s, t
2
≥ 100 ms., t
3
≥ 1 s, t
4
= 3 s, t
5
≥ 100 ms., t
6
≥ 100 ms.
24V
dc
RESET
(restart)
pulse
230/460
V
ac
Three-phase
t
1
t
2
t
3
t
4
t
5
t
6
REFERENCE
ENABLE
DRIVE
ENABLE
DRIVE OK
Fig. 2.15 – Starting sequence times
NOTES:
• Reset pulse generates a complete initialization of the card with all the voltages already
stabilized; this allows a more careful reading of the voltages and a better compensation of
internal offsets.
• In case the auxiliary voltage (24V
dc
) is missing, give the RESET pulse (for a time greater
than 100 ms) after at least 3 seconds from the moment in which the drive is supplied by
three-phase voltage.
• RESET is necessary only after the first drive start-up or, in case of FAULT, to restore the
proper operation of drive.
• DRIVE OK signal depends upon the three-phase voltage presence, in order to allow a
quick and immediate enabling of motor torque.
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