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Product Description
A loaded compressor condition occurs when any mea-
sured half line current is greater than or equal to the
"Operating Current." A current imbalance exceeding a
loaded level of 17% will result in the motor pilot cir-
cuit being de-energized.
Imbalance is defined as:
(High Phase - Low Phase) / High Phase
TABLE 1 – MOTOR PROTECTOR DIP SWITCH SETTING
CHILLER
MODEL
VOLT
NAMEPLATE
NO.
CODE
RLA
YCAS
0425
50
106
0475
50
148
SYS 1
0475
50
106
SYS 2
0515
50
148
0555
50
188
SYS 1
0555
50
148
SYS 2
0605
50
173
* Indicates one lead/phase through motor protector.
20
YCAS STYLE F, ACROSS-THE-LINE – 50 HZ
NO.
LEADS
MP OL
PER
VALUE
PHASE
SET
128
1
143
1
1
200
1
1
143
1
1
200
1
2
127
1
2
200
1
*2
117
0
Improper Phase Sequence
The 2ACE module calculates the phase sequence at
start-up using the three current transformers to deter-
mine whether the three phase sequence on the load
side of the main contactor is miswired. Upon detec-
tion of a miswired motor load, the module will de-
energize the main contactor pilot circuit within 50 mil-
lisecond response time.
MOTOR PROTECTOR
DIP SWITCH SETTINGS ON MP ("1" INDICATED ON)
64
32
16
0
0
0
1
0
0
0
0
0
1
0
0
1
1
1
1
0
0
1
1
1
8
4
2
1
1
1
1
1
1
0
0
0
1
1
1
1
1
0
0
0
1
1
1
1
1
0
0
0
0
1
0
1
YORK INTERNATIONAL
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