890CS & 890CD Common Bus Units
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
Page
4-25
8
9
10
11
A
B
C
D
1
2
3
4
5
6
7
E
8
9
1
2
3
4
5
6
E
Control Connections - 890CS Common Bus Supply
The table below shows the factory defaults.
Name Range Description
01
02
+24V AUX
SUPPLY
24V (
±
10%) 2A
03
X01
04
0V AUX
SUPPLY
0V (24V)
You must supply 24V DC to power the unit.
Use a source separate to your 3
∅
supply.
Use the second set of terminals to daisy-
chain to the next drive. Connect three
890CD units only using this method. The
unit is protected against reversal of this
supply. See Note.
01 +24V OUT
24V
A 24V DC supply for the digital I/O of X02.
02 DIGIN1
-
Future use
03 ENABLE
0-24V
24V = 890CS Common Bus Supply powers-
up to supply DC to connected units. This is
intended as an aid to functional sequencing
only and must
NOT
be used as the main
system disable. Personnel must not work on
the system whilst it is held in this state.
05 AOUT MODE 0-24V
0V = Power (kW) , 24V = Current (A).
Selects the units for meter connected to
AOUT.
05 AOUT
0-10V
Mode set by AOUT MODE. Meter
connection:
0 to 5V is equivalent to 0 to 100%.
X02
06 0V OUT
0V
0V reference for AOUT
Note
X01: This Control Supply is necessary at all times to operate the 890CS Common Bus
Supply. DO NOT use this 24V for the terminals at X02, only use the 24V supply
provided at X02/01.
230V
400/460V
500V
30
SUPPLY
ENABLE
AOUT MODE
AOUT
0V OUT
HMI - REMOTE
WARNING
HEALTH
PRE-TRIP
S1