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CHAPTER 4: MOTOR MANAGEMENT & METERING THE 369 MOTOR MANAGEMENT RELAY
RTT DESKTOP TEST SET– INSTRUCTION MANUAL
63
4.1.3
RTT to 369 Relay Wiring Diagram
1.
Ensure that Wet/Dry Input Type switch is set to
DRY
before applying power to the RTT
unit. The 369 Relay accepts only
DRY
contact connections to the RTT.
2.
Ensure that current and voltage knobs are turned fully counter-clockwise before
applying power to the RTT unit.
Note
*Trip and Alarm Common terminals (112 and 115) must be hardwired together.
Table 4–1: 369 Relay with RTT Set to Dry
RTDs
RTD3+
9
-------------------------
RTD3 +
RTD3-
10
-------------------------
RTD3 -
RTD3 COM
11
-------------------------
RTD3 C
RTD2+
5
-------------------------
RTD2 +
RTD2-
6
-------------------------
RTD2 -
RTD2 COM
7
-------------------------
RTD2 C
RTD1+
1
-------------------------
RTD1 +
RTD1-
2
-------------------------
RTD1 -
RTD1 COM
3
-------------------------
RTD1 C
SPARE
Contact
Outputs*
ALARM COMMON
115
---------------
RTT
TRIP COMMON
112
-------------------------
OUTPUT C
ALARM NO
116
-------------------------
OUTPUT 2
TRIP NO
113
-------------------------
OUTPUT
1
Contact
(Digital)
Inputs
Spare Input Common
52
-------------------------
INPUT C
INPUT 8
INPUT 7
External Reset
61
-------------------------
INPUT 6
Emergency Restart
59
-------------------------
INPUT 5
Access
57
-------------------------
INPUT 4
Speed Switch
55
-------------------------
INPUT 3
Differential Input
53
-------------------------
INPUT 2
Spare Input
51
-------------------------
INPUT
1
CTs
Ia (1A)
93
-------------------------
I
+
Ia COM
94
-------------------------
I
-
VTs
VA
105
-------------------------
V
+
Vn
106
-------------------------
V
-