McQuay TSC User Manual

74 OM Centrif Micro ΙΙ-5
Overload meter
Toggle between the programmed meter display and the overload content by pressing the DOWN
key. The overload will be displayed as “oXXX” where XXX is the overload content. For example
if the overload content is 76 percent, it will be displayed as “o 76”.
Phase Order Meter
Toggle between the programmed meter display and the phase order by pressing the UP key. The
phase order will be displayed as “AbC” or “CbA”. The phase order must be AbC to operate.
Restoring Factory Parameter Settings
To restore ALL parameters to the factory default settings, press and hold the PARAM and
ENTER pushbutton switch on power up. The display will blink “dFLt”. Parameters unique to the
motor starter applications will need to be set again to appropriate values before motor operation
Faults and Alarms
Starter and/or power problems can result in a fault or an alarm that will usually shut down the
compressor and record a “Starter Fault’ in the touchscreen’s active fault menu. The starter LED
can then be consulted to determine the specific problem based on the code shown in the following
table.
Alarm Reset Type
Table 30, Fault/Alarm Codes, Wye-Delta Starter, Y = Yes, N = No
Description
Auto Reset
00 No fault -
02 Motor Thermal Overload Trip N
10 Phase Rotation Error, not ABC Y
12 Low Line Frequency Y
13 High Line Frequency Y
15 Input power not three phase Y
21 Low Line L1-L2 Voltage Y
22 Low Line L2-L3 Voltage Y
23 Low Line L3-L1 Voltage Y
24 High Line L1-L2 Voltage Y
25 High Line L2-L3 Voltage Y
26 High Line L3-L1 Voltage Y
27 Phase Loss Y
28 No Line Voltage Y
30 I.O.C. (Instantaneous Overcurrent) N
31 Overcurrent N
37 Current Imbalance Y
38 Ground Fault N
39 No Current at Run Y
40 Open Line or Motor Lead N
41 Current While Stopped N
48 2M Feedback Fault (on DIN#2, No Transition) N
50 Control Power Low Y
51 Current Sensor Offset Error N
52 Burden Switch Error N
60 Thermistor Trip (on DIN#1, Input from Motor Thermistor) N
71 Analog Input Trip (Not Used) Y
82 Modbus Timeout (Communication Fault) Y
94 CPU Error – Software Fault N
95 CPU Error – Parameter Storage Fault N

McQuay TSC Specifications

General

Brand	McQuay
Model	TSC
Category	Controller
Language	English