Serial Communications - GE 869 Instruction Manual

CHAPTER 2: INSTALLATION
Slots F,G,H with I/O options A,A,A
Terminal # SLOT F
18 Digital In_6
19 Digital In_7
20 Common
21 +24V
22 RELAY_8
23 RELAY_8
24 RELAY_8
Table 2-9: Slots F,G,H with I/O options A,A,F (left) and I/O options A, N, F (right)
Slots F,G,H with I/O options A,A,F
Terminal # SLOT F
1 RELAY_1
2 RELAY_1
3 RELAY_1
4 RELAY_2
5 RELAY_2
6 RELAY_2
7 RELAY_3
8 RELAY_3
9 RELAY_3
10 RELAY_4
11 RELAY_4
12 RELAY_4
13 Digital In_1
14 Digital In_2
15 Digital In_3
16 Digital In_4
17 Digital In_5
18 Digital In_6
19 Digital In_7
20 Common
21 +24V
22 RELAY_8
23 RELAY_8
24 RELAY_8

Serial Communications

869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
SLOT G SLOT H
Digital In_13 Digital In_20
Digital In_14 Digital In_21
Common Common
+24V +24V
RELAY_16 RELAY_24
RELAY_16 RELAY_24
RELAY_16 RELAY_24
SLOT G SLOT H
RELAY_9 Digital In_15
RELAY_9 Digital In_16
RELAY_9 Digital In_17
RELAY_10 Digital In_18
RELAY_10 Digital In_19
RELAY_10 Digital In_20
RELAY_11 Digital In_21
RELAY_11 Digital In_22
RELAY_11 Digital In_23
RELAY_12 Digital In_24
RELAY_12 Common
RELAY_12 +24V
Digital In_8 ARC
FLASHSensor
Digital In_9
1Sensor
2Sensor
Digital In_10
3Sensor 4
Digital In_11
Digital In_12
Digital In_13
Digital In_14
Common
+24V
RELAY_16
RELAY_16
RELAY_16
One two-wire RS485 port is provided. Up to thirty-two 8 Series IEDs can be daisy-chained
together on a communication channel without exceeding the driver capability. For larger
systems, additional serial channels must be added. Commercially available repeaters can
also be used to add more than 32 relays on a single channel. Suitable cable should have a
characteristic impedance of 120 ohms and total wire length should not exceed 1200
meters (4000 ft).
Voltage differences between remote ends of the communication link are not uncommon.
For this reason, surge protection devices are internally installed across all RS485
terminals.Internally, an isolated power supply with an opto-coupled data interface is used
to prevent noise coupling.
Slots F,G,H with I/O options A,L,A
Terminal # SLOT F
18 Digital In_6
19 Digital In_7
20 Common
21 +24V
22 RELAY_8
23 RELAY_8
24 RELAY_8
Slots F,G,H with I/O options A,N,F
Terminal # SLOT F
1 RELAY_1
2 RELAY_1
3 RELAY_1
4 RELAY_2
5 RELAY_2
6 RELAY_2
7 RELAY_3
8 RELAY_3
9 RELAY_3
10 RELAY_4
11 RELAY_4
12 RELAY_4
14 Digital In_2
15 Digital In_3
16 Digital In_4
17 Digital In_5
18 Digital In_6
19 Digital In_7
20 Common
21 +24V
22 RELAY_8
23 RELAY_8
24 RELAY_8
ELECTRICAL INSTALLATION
SLOT G SLOT H
Reserved Digital In_13
RTD_Hot Digital In_14
RTD_Comp Common
RTD_Return +24V
Shield RELAY_16
Reserved RELAY_16
Reserved RELAY_16
SLOT H
Digital In_8
Digital In_9
Digital In_10
Digital In_11
Digital In_12
Digital In_13
Digital In_14
Digital In_15
Digital In_16
Digital In_17
Common
+24V
ARC
FLASHSensor
1Sensor
2Sensor
3Sensor 4
2–27