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CHAPTER 4: MOTOR MANAGEMENT & METERING THE PQM AND PQMII POWER QUALITY METERING SYSTEMS
RTT DESKTOP TEST SET– INSTRUCTION MANUAL
81
4.4.4
RTT to PQM/PQMII Relay Wiring Diagram
1.
Ensure that Wet/Dry Input Type switch is set to
DRY
before applying power to the RTT
unit. The PQM/PQMII 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
*Alarm and Aux1 Common terminals (44 and 41) must be hardwired together..
**The PQM/PQMII Relay doesn’t have RTD function.
Table 4–4: PQM/PQMII Relay with RTT Set to Dry
RTDs**
RTD3 +
RTD3 -
RTD3 C
RTD2 +
RTD2 -
RTD2 C
RTD1 +
RTD1 -
RTD1 C
SPARE
Contact
Outputs*
AUX 1 COMMON
41
---------------
RTT
ALARM COMMON
44
-------------------------
OUTPUT C
AUX 1 NO
42
-------------------------
OUTPUT 2
ALARM NO
45
-------------------------
OUTPUT
1
Contact
(Digital)
Inputs
Switch Common
33
-------------------------
INPUT C
INPUT 8
INPUT 7
INPUT 6
INPUT 5
Switch 4
29
-------------------------
INPUT 4
Switch 3
30
-------------------------
INPUT 3
Switch 2
31
-------------------------
INPUT 2
Switch 1
32
-------------------------
INPUT
1
CTs
IA (1A)
10
-------------------------
I
+
Ia COM
11
-------------------------
I
-
VTs
V1
1
-------------------------
V
+
Vn
4
-------------------------
V
-