Siemens Maxum II - 3.4 Procedure - Upgrade FPDI to FPDII

Compare
Airflow
Loss
Shutdown
PECM
Air Bath Oven
High-Wattage
Heater
Analog
SSR Pair
Air Pressure
Switch
Digital
Temp Control,
Temp Limit,
Overtemp RTDs
Temp
Setpoint
Modules
PWM
I
2
C
Temperature
Control
Airflow Loss
Shutdown
Heater
AC
Line
SSRa SSRb
SYSCON
Figure 2-6 PECM Heater Control Functions
2.2.3.3 Communication and Power Distribution
The 24V power supply connects to one of two parallel power connectors, TB1 and TB2 on the
PECM-CTL board. Another module can be powered from the other connector.
Each of the 7 I
2
C connectors also provides 24VDC power to the connected module.
A separate connector powers a 24V fan.
Electronic Compartment Component Descriptions and Maintenance Procedures
2.2 Power Entry and Control Module
Maxum II Reference Manual
22 Manual, 7/2017, 2000596-001