ABB DCS880 series - Control Board SDCS-CON-H01 (H1; Location of the Control Circuit Board SDCS-CON-H01; Watchdog Function; Recommended Wire Size - Tightening Torques

Technical data
83
3ADW000462R0401 DCS880 Hardware manual e d
Control board SDCS-CON-H01 (H1 ... H8)
The control circuit terminals are common for all sizes H1 … H8.
Location of the control circuit board SDCS-CON-H01
The SDCS-CON-H01 is mounted on an electronic tray. The electronic tray is attached in the housing by means
of two hinges.
Watchdog function
The SDCS-CON-H01 has an internal watchdog. The watchdog controls the proper function of the SDCS-CON-
H01 and the firmware. If the watchdog trips, it has the following effects:
– The thyristor firing control is reset and disabled.
– All DI’s will not be processed.
– All DO’s are frozen in the actual state.
– All AI’s will not be processed.
– All programmable AO’s are frozen in the actual state.
Recommended wire size - Tightening torques
Control cables:
Wire sizes: Tightening torques:
0.5 … 2.5 mm
2
(24 … 12 AWG) 0.5 Nm (5 lbf·in) for both stranded and solid wiring
X
S
1
3
XSMC
XTAC
X
C
1
3
X
C
1
2
X
1
4
X13
PANEL
X205
MEMORY
UNIT
V301
X208
X38
X12
OPTION
X200
1
3
4
6
DCSLink
OPTION
XRO1
XRO2
XRO3
XENC
J4
XSTO
XDI
XDIO
J3
J6
J5
J1
XD24
XD2D
XAO
XAI
J2
BL_CONH01_001_c.ai
J7
CONTROL
SLOT1
SLOT2
FAN
SAFETY
SLOT3
Battery