Connectors Function Led Colour
Meaning
J7
25-way connector.
Interface to PTU4 emergency termi
-
nal (E.M.C.) for:
WDG red
Off: indicates that the mCis
working correctly
On: indicates that the mCis
not working correctly
- Serial line EIA RS485 (SAU2
receives commands and supplies
answers on alarm statuses)
- PWM SYNC reference signal
@ 19.53 kHz for generating
PWM command
- Two current references at 120°
shared by all axes
- 20 Vdc supply to PTU4
PWR green Off: indicates the absence of
auxiliary 110 Vac current or
of +5V current for Digital
Card supply or that the sys
-
tem has not passed the initial
tests
On: Indicates that all the cur
-
rents are present
J8
50-way connector
Makes the interface towards SCC2
through two buses, one analogue
and the other digital.
Through the analogue bus SAU2
receives two current references at
120° for each axis controlled.
Through serial bus EIA RS 485
SAU2 receives:
- commands and gives answers
on alarm statuses
- PWM SYNC reference signal
@ 19.53 kHz for generating
PWM command
SFT red Off: the drive has no type of
fault (Drive OK)
On: the drive is in a FAULT
status.
SAU2 closes the double safety
chain (relay clean double contact)
towards SCC2 and sends DRIVE
FAULT information
Terminal
board
Function
J9
Supplies: three-phase 220 Vac in
-
put (R-S-T); bus 310 Vdc output (L+
L-)
C3G Plus MAINTENANCE
01/0498 7-57
The PWR and SFT leds may light up
simultaneously
SERVO AMPLIFIERS UNIT SAU2
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