MP-3000 Controller
79
Commands Menu
The Commands menu displays a list of tasks that
can be activated. The following commands are
available:
• PTI (Pre-trip) Test: Controller automatically
completes a test of individual components and
checks unit refrigeration capacity, heating
capacity and temperature control. See “PTI
(Pre-trip) Test” in this chapter for test details.
• Power Management: Sets the power limit and
power limit activation (“On”) time.
• Function Test: Controller automatically tests
the operation of individual unit components.
This is not a performance test of the complete
system. See “Function Test” in this chapter for
test details.
• Manual Function Test: Controller tests
individual components selected by the
technician for diagnosis. LCD display will
show expected and actual current of the
component being tested.
Viewing the Commands Menu
With the UNIT ON/OFF switch ON and the LCD
display showing the standard display (setpoint):
16 Check
Check Condenser Fan Current
Too High
17 Check
Check Condenser Fan Current
Too Low
18 Check Log Power Supply Phase Error
19 Check
Check Temperature Too Far from
Setpoint
20 Check Check Defrost Time Too Long
22 Check Check Capacity Test 1 Error
23 Check Check Capacity Test 2 Error
24 Check Check Capacity Test 3 Error
25 Check
Check Evaporator Temperature
Test Error
27 Check Check Heat Capacity Test Error
28 Check Suction Stepper Valve Error
29 Check Liquid Injection Valve Error
30 Check Bypass (Warm Gas) Valve Error
31 Check Low Pressure Cutout Error
32 Check
Check Condenser Air Sensor
Open Circuit
33 Check
Check Condenser Air Sensor
Short Circuit
34 Check
Check Ambient Air Sensor Open
Circuit
35 Check
Check Ambient Air Sensor Short
Circuit
36 Check Check Current Too High
37 Check Check Current Too Low
41 Check
Check Supply Air Temperature
Too High
42 Check
Check Supply Air Temperature
Too Low
43 Check
Check Return Air Temperature
Too High
45 Check
Check Evaporator Coil
Temperature Too High
46 Check
Check Evaporator Coil
Temperature Too Low
52 Check Check Probe Error
53 Check
Check High Pressure Cutout
Switch Off Error
54 Check
Check High Pressure Cutout
Switch On Error
56 Shutdown
Shutdown Compressor
Temperature Too High
58 Check Check Phase Sensor Error
59 Check Check Delta Current Error
Alarm List (Continued)
Alarm
Code
Type Description
60 Check Check Humidity Sensor Error
68 Check AFAM Gas Analyzer Error
69 Check Gas Analyzer Calibration Error
97 Check
Log Compressor Sensor Open
Circuit
98 Check
Log Compressor Sensor Short
Circuit
99 Check
Check USDA 1 Sensor Open
Circuit
112 Check Check Zero Current Too High
115 Check Probe Error Return & Evaporator
116 Check Probe Error Return & Supply
117 Check
Probe Error Supply RH & Supply
LH
118 Check High Refrigerant Level
CAUTION: The PTI test should only be
performed on an empty container!
Alarm List (Continued)
Alarm
Code
Type Description