Emerson ControlWave EFM 3808 Instruction Manual page 26

ControlWave Express Instruction Manual (CI-ControlWave Express)
Power Supply
Current
Requirements
Table 2-4. ControlWave Express Bulk Power Requirements
CPU Type and Components
14 MHz Ultra Low Power CPU with LCD
display/keypad
33 MHz Low Power CPU without Ethernet, but
with LCD display/keypad
33 MHz CPU with Ethernet and LCD
display/keypad
Caution
Terminal Block
Connector TB1
2-12
Depending upon the CPU type, the ControlWave Express accepts either
a 6Vdc, 12Vdc or 24Vdc bulk power input. You can estimate the
maximum current required for your ControlWave Express using the
following equation:
Bulk +6/12/24 Vdc Supply Current = CPU/System Controller Board (with
Refer to Table 2-4 for ControlWave Express power requirements based
on the CPU type.
Bulk 6Vdc
Power
Supply
Supported
Supported
If your ControlWave Express includes an external modem or
Note:
radio, contact the radio/modem manufacturer for power
consumption specifications.
If your ControlWave Express is configured to use a solar panel to charge
a 7AH (6V or 12V) battery for power, NEVER CONNECT THE SOLAR
PANEL/CHARGER WITHOUT ALSO CONNECTING THE BATTERY.
Connections without the battery present can damage power supply
components.
Unplug removable connector TB1 from the CPU/System Controller
board. We recommend you do not plug the connector back into the CPU
until the unit is already installed in the housing.
You can power the ControlWave Express using a bulk DC power supply
using connections TB1-3 and TB1-4.
Nominal input source operating ranges for the DC power supply are:
 +6Vdc (+5.4Vdc to +16.0Vdc nominal operating range)
 +12Vdc (+11.4Vdc to +16.0Vdc nominal operating range)
 +24Vdc (+21.8Vdc to +28.0Vdc nominal operating range)
Not all ControlWave Express CPUs support all DC power supplies.
Supported options are:
Installation
options) + Process I/O Board + LCD
display/keypad + optional external
modem/radio
Bulk 12Vdc
Power Supply
7 mA without field supply
and with AO output
under range: 5 mA
Not without process I/O
board: 14 mA
Not without process I/O
board: 80 mA
Bulk 24Vdc
Power Supply
Not Supported
without process I/O
board: 14 mA
without process I/O
board: 47 mA
Revised Mar-2011