ABB DCS 500B Description page 168

DIFF_CURR_DELAY
Parameter of 12-PULSE LOGIC-function block
Number of cycles in which the currents are allowed to differ (DIFF_CURRENT) without
triggering Error 66
Operative only at the Master drive.
3606 FB_P: I2 SC: 1
INHIB_Logic
Input of 12-PULSE LOGIC-function block
This input controls the reaction of this converter, if an error is active at the other converter.
Interconnection:
- At systems, running in 12 pulse mode all time (no redundancy; Master or Follower
never will be used as single 6 pulse drive), connect this input to the output
INPUT_X18:15 (13619) at both converters, the Master and the Follower.
3607 FB_I: C4 SC: BI
IREF0_Logic
Input of 12-PULSE LOGIC-function block
This input is used to monitor and control the bridge changeover. The Follower is reading
the polarity of the signal CURR.-REF.1 (13605), generated by the Master.
Interconnection:
- Keep this input unconnected, if this converter is used as a Master.
- Connect this input to INPUT_X18:13 (13617), if this converter is used as a Follower.
3608 FB_I: C4 SC: BI
Bridge_Logic
Input of 12-PULSE LOGIC-function block
This input is used to read, which bridge is active at the Follower.
Interconnection:
- Connect this input to INPUT_X18:13 (13617), if this converter is used as a Master.
- Keep this input unconnected, if this converter is used as a Follower.
3609 FB_I: C4 SC: BI
Reverse.Logic
Input of 12-PULSE LOGIC-function block
This input is used to monitor and control the bridge changeover. Both converters are
reading the polarity of the signal CURR.-REF2 (13608), generated by it´s partner.
Interconnection:
- Connect this input to INPUT_X18:14 (13618) at both converters, the Master and the
Follower.
3610 FB_I: C4 SC: BI
[X18:09]
Input of OUTPUT X18-function block
The signal passed to this pointer is outputted at Plug Connector X18:09. It is operative in
all modes.
Based on the connection diagram this interconnection should be done:
- Connect this input to IREF1-POLARITY (13606), if this converter is used as a Master.
- Connect this input to BRIDGE (13611), if this converter is used as a Follower.
3611 FB_I: C4 SC:
HL: 16383
HL: 19999
HL: 19999
HL: 19999
HL: 19999
HL: 19999
-
DCS500 Pin and Parameter list
LL: 3 D: 150
LL: 0 D: 0
LL: 0 D: 0
LL: 0 D: 0
LL: 0 D: 0
LL: 0 D: 0
(S13/16 ).
U: -
(S13/16 ).
U: -
(S13/16 ).
U: -
(S13/16 ).
U: -
(S13/16 ).
U: -
(S13/16 ).
U: -
A 64