Siemens Maxum II Reference Manual

Table of contents
1 Analyzer Overview........................................................................................................................................7
1.1 Introduction..............................................................................................................................7
1.2 Analyzer Specific Documents..................................................................................................8
1.3 Parts of the Maxum II...............................................................................................................8
1.4 Isothermal Oven.......................................................................................................................9
1.5 Switching and Sampling Valves.............................................................................................10
1.6 Operator Controls...................................................................................................................11
2 Electronic Compartment Component Descriptions and Maintenance Procedures.....................................13
2.1 Power Supplies......................................................................................................................13
2.1.1 Power System Module...........................................................................................................13
2.1.2 Replacement Procedure........................................................................................................15
2.2 Power Entry and Control Module...........................................................................................18
2.2.1 PECM Overview.....................................................................................................................18
2.2.2 Feature Additions...................................................................................................................19
2.2.3 PECM Functions....................................................................................................................20
2.2.3.1 AC Input and Distribution.......................................................................................................20
2.2.3.2 Oven Temperature Control....................................................................................................21
2.2.3.3 Communication and Power Distribution.................................................................................22
2.2.3.4 Onboard Solid State Relays...................................................................................................23
2.2.3.5 Oven Functions......................................................................................................................24
2.2.3.6 Electronic Enclosure Environment.........................................................................................26
2.2.4 Replacement Procedure........................................................................................................28
2.2.4.1 Troubleshooting.....................................................................................................................28
2.2.4.2 Removing The PECM............................................................................................................30
2.2.4.3 Installing The New PECM......................................................................................................31
2.3 System Controller Version 2.1 (SYSCON2.1)........................................................................32
2.3.1 Description.............................................................................................................................32
2.3.2 Mechanical.............................................................................................................................33
2.3.3 SYSCON2.1 Components......................................................................................................34
2.3.3.1 Communication and Control Board (CAC3)...........................................................................34
2.3.3.2 CAC3 Status Indicator LEDs..................................................................................................35
2.3.3.3 SIB.........................................................................................................................................36
2.3.3.4 Ethernet Port Expansion........................................................................................................44
2.3.4 Maintenance Overview...........................................................................................................48
2.3.5 Service Procedures................................................................................................................48
2.3.6 Replacing the Lithium Battery on the SYSCON Module Introduction....................................53
2.3.7 Procedure...............................................................................................................................53
2.4 Analog and Digital IO.............................................................................................................54
2.4.1 IO Card Common Features....................................................................................................55
2.4.2 Digital IO Card........................................................................................................................58
2.4.3 Analog IO Board.....................................................................................................................59
Maxum II Reference Manual
Manual, 7/2017, 2000596-001 3

Siemens Maxum II Specifications

General

Category	Gas Chromatograph
Measurement Principle	Gas Chromatography
Communication Protocols	Modbus, Ethernet, Profibus
Operating Temperature	-20°C to 55°C
Power Supply	24 VDC or 100-240 VAC
Mounting	rack mount
Applications	Refinery, chemical, petrochemical, natural gas
Detectors	Thermal Conductivity Detector (TCD), Flame Ionization Detector (FID)
Sample Inlets	Multiple
Dimensions	Varies by configuration (e.g., 19" rack mount)