Emerson Liebert iCOM User Manual Page 81
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Operation
71 Liebert
®
iCOM
®
3.10.3 Analog Inputs—Liebert CW
™
and Liebert DS
™
Air-Cooled Units
The Liebert iCOM allows an external sensor or analog device to be connected, scaled and viewed on
the Liebert iCOM large display for Liebert CW and Liebert DS air-cooled units only. These external
devices require optional analog input connections that can be installed on new units at the factory or
added to existing units in the field. The option provides the electrical connection from the Liebert
iCOM control board to the required factory-supplied plug, harness and terminal strip. For parts,
contact Liebert Services at (800) 800-543-2778. If a Liebert CW or Liebert DS air-cooled unit is
equipped with this option, then a 0-10VDC, 0-5VDC or a device such as a sensor or a damper can be
connected to terminals 41 and 42, 43 and 44, 45 and 46 or 47 and 48. See Table 11 for analog input
availability.
Follow the settings illustrated in Figure 62 and Table 12 to set the input type based on the sensor
output being used. The default analog input is 0-5VDC. Only properly trained and qualified service
technicians should change the analog input type.
Figure 62 Analog connection control board switch
Table 11 Number of analog inputs
Unit Type
Number of Analog Inputs
Liebert CW with MBV 4
Liebert CW with 3P (Stem Valve) 3; one used for valve feedback
Liebert DS Air-Cooled (DX) 2; two used for suction pressure management
NOTE
This option is not available on fluid-cooled units. Fluid-cooled units use all four
analog inputs for low and high refrigerant pressure management.
NOTE
The analog inputs must be configured with the large display. The small display
can only view them.
Table 12 Analog connection control board switch position
Analog Input # Input #1 Input #2 Input #3 Input #4
Control Board Switch Number 1 2 3 4 5 6 7 8
Analog Input Device Value
0 to 10VDC Off Off Off Off Off Off Off Off
0 to 5VDC On Off On Off On Off On Off
Switches #9 and #10 not applicable to Liebert CW or to Liebert DS.
On
Off
Switch Position
Switches #9 and #10 not
applicable to Liebert CW
or to Liebert DS
- 2
- TABLE OF CONTENTS 3
- 1.0 INTRODUCTION 11
- 2.1 System Screen 14
- 5Liebert 15
- 2.2 Main Unit Screen 16
- 2.3.2 Accessing Submenus 17
- Display Filtering 19
- 2.3.3 Entering a Password 20
- Figure 14 User menu icons 23
- Table 2 User menu icons 23
- Figure 15 Service menu icons 24
- Table 3 Service menu icons 24
- 3.0 OPERATION 26
- Autorestart 27
- Loss of Power Alarm 27
- Minimum Fan Speed 29
- Operation 30
- Low-Pressure Time Delay 31
- Advanced DX Freeze Protection 31
- Pump Down 32
- High Pressure Alarm 32
- 23 Liebert 33
- Settings 34
- 25 Liebert 35
- 3.2.2 Compressor Control 36
- Compressor Proportional Bands 36
- 27 Liebert 37
- 3.2.3 Chilled Water Control 38
- 29 Liebert 39
- 31 Liebert 41
- Cooling—Free-Cooling 42
- Dual-Cooling Source 42
- DETAIL CDETAIL B 43
- DETAIL D 43
- FRONT VIEW 43
- DETAIL E 44
- 35 Liebert 45
- 3.4 Liebert Air Economizer 46
- Operation 46
- 37 Liebert 47
- 3.4.2 Liebert Air Economizer 48
- System Overview 48
- (Not by 49
- Emerson) 49
- Out of Service 50
- 41 Liebert 51
- 43 Liebert 53
- 3.5.2 SCR Reheat 57
- Tight Mode 57
- 3.6.1 Humidification 59
- Infrared Humidifier 59
- 3.6.2 Dehumidification 60
- Dehumidification Low Limit 60
- . If the proportional 63
- Setting Up PI control 64
- 3.8 Supply Control 66
- 3.9.1 Operation 67
- Temperature Compensation 68
- Racks with Equipment 73
- Figure 59 S190 Limit 75
- Figure 60 S190 Control 75
- 67 Liebert 77
- 3.10.2 User Inputs 80
- and Liebert DS 81
- Air-Cooled Units 81
- 3.10.4 Liebert iCOM-DO 82
- Calculating Unit Wellness 84
- 75 Liebert 85
- 4.0 TEAMWORK 86
- 4.2.2 No Teamwork 87
- 4.2.3 Teamwork Mode 1 87
- 4.2.4 Teamwork Mode 2 88
- Fixed Speed 89
- Variable Speed 89
- Teamwork 90
- 4.2.6 Hardware Setup 91
- 4.3.2 DIP Switch Settings 92
- Unterminated 94
- Terminated 94
- 85 Liebert 95
- Grounded CANbus Cable 97
- 4.3.8 Software Setup 99
- 4.3.9 Standby—Rotation 99
- Standby and Cascade 100
- 91 Liebert 101
- Small Displays 104
- Large Displays 104
- 95 Liebert 105
- Small Graphics Display 106
- Liebert iCOM 107
- I/O Board 107
- Graphics Display 108
- (Rear View) 108
- Optional Large 108
- SITESCAN 110
- 6.1 Terminals 77 and 78 111
- via 77/78 112
- 7.0 USER MENU PARAMETERS 113
- User Menu Parameters 114
- 105 Liebert 115
- 7.2 User-Graphic Menu Screens 116
- Event Log 117
- View Network 117
- 109 Liebert 119
- 111 Liebert 121
- 113 Liebert 123
- Active Alarms 125
- 117 Liebert 127
- 119 Liebert 129
- 121 Liebert 131
- 8.0 SERVICE MENU PARAMETERS 132
- Service Menu Parameters 133
- 123 Liebert 133
- 125 Liebert 135
- 127 Liebert 137
- 129 Liebert 139
- 131 Liebert 141
- 133 Liebert 143
- 135 Liebert 145
- 137 Liebert 147
- 139 Liebert 149
- 141 Liebert 151
- 143 Liebert 153
- 145 Liebert 155
- 147 Liebert 157
- 149 Liebert 159
- Set Alarm Screens, Pages 4-10 160
- 151 Liebert 161
- 153 Liebert 163
- 155 Liebert 165
- 157 Liebert 167
- 159 Liebert 169
- 161 Liebert 171
- 163 Liebert 173
- 165 Liebert 175
- 167 Liebert 177
- 169 Liebert 179
- 171 Liebert 181
- 9.0 MONITORING POINTS 187
- Example of points generated 188
- Monitoring Points 189
- 179 Liebert 189
- Technical Support / Service 192
- Locations 192
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