Rear Terminal Layout - GE B90 Instruction Manual

3.1 DESCRIPTION
To properly insert a module, ensure that the correct module type is inserted into the correct slot position. The ejector/
inserter clips located at the top and at the bottom of each module must be in the disengaged position as the module is
smoothly inserted into the slot. Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously.
When the clips have locked into position, the module will be fully inserted.
All CPU modules except the 9E are equipped with 10/100Base-T or 100Base-F Ethernet connectors. These con-
nectors must be individually disconnected from the module before it can be removed from the chassis.
NOTE
The 4.0x release of the B90 relay includes new hardware modules.The new CPU modules are specified with codes
9E and higher. The new CT/VT modules are specified with the codes 8F and higher.
NOTE
The new CT/VT modules can only be used with new CPUs; similarly, old CT/VT modules can only be used with old
CPUs. To prevent hardware mismatches, the new modules have blue labels and a warning sticker stating "Attn.:
Ensure CPU and DSP module label colors are the same!". In the event that there is a mismatch between the
3
CPU and CT/VT module, the relay will not function and a
played.
All other input and output modules are compatible with the new hardware. Firmware versions 4.0x and higher are
only compatible with the new hardware modules. Previous versions of the firmware (3.4x and earlier) are only com-
patible with the older hardware modules.
X W V
c
Tx1
Rx1
Tx1
Tx2
Rx2
Tx2
Optional Optional
direct contact
input/output input/output
module module
The relay follows a convention with respect to terminal number assignments which are three characters long assigned in
order by module slot position, row number, and column letter. Two-slot wide modules take their slot designation from the
first slot position (nearest to CPU module) which is indicated by an arrow marker on the terminal block. See the following
figure for an example of rear terminal assignments.
3-4
B90
Bus Differential Relay
GE Multilin
Technical Support:
Tel: (905) 294-6222
http://www.GEIndustrial.com/Multilin
Fax: (905) 201-2098
U T S R P N
b a c b a c b a
Optional Optional
CT/VT or contact
contact input/output
input/output module
module
Figure 3–6: REAR TERMINAL VIEW
Do not touch any rear terminals while the relay is energized!
B90 Low Impedance Bus Differential System
or
DSP ERROR HARDWARE MISMATCH
B90D00HCHF8AH6AM6BP8BX7A
Model:
RATINGS:
NONE
Mods:
Control Power: 88-300V DC @ 35W / 77-265V AC @ 35VA
836709
Wiring Diagram:
D
Inst. Manual:
Contact Inputs: 300 VDC Max 10mA MAZB98000029
Serial Number:
D
Firmware:
Contact Outputs: Refer to Instruction Manual Oct. 14, 1998
Mfg. Date:
®
®
- M A A B 9
M L K J H G
c b a c b a c
Optional Optional CT/VT
CT/VT or contact module
input/output
contact
input/output module
module
3 HARDWARE
error will be dis-

3.1.3 REAR TERMINAL LAYOUT

7 0 0 0 0 9 9 -
F D B
b a
b a b
1 1
1
2 2
2
3 3
Tx1
3
4 4
4
Rx1 5
CH1
Tx 6
Rx
CH2
7
IN
Tx2
8
OUT
Rx2
CPU module
Power
supply
module
836774A2.CDR
GE Multilin
a
1
2
3
4
5
6
7
8