Emerson SM-I/O 24V Protected, Руководство пользователя, Страница: 8 / 42

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SM-I/O 24V Protected User Guide
www.controltechniques.com Issue Number: 2
• The four digital outputs of the Solutions Module (three digital outputs with
Commander SK) are able to source 40 mA to the total combination of output
channels (e.g. 4 x 10mA or 1 x 40mA). When the current drawn exceeds safe limits,
all the outputs will be disabled through hardware and trip the drive to alert the user
to the fault condition.
**A maximum of three digital outputs are available with Commander SK.
2.6 Analogue output
Two terminals have a dedicated analogue output with the following functions:
•
The output can be used to convey the value of any valid source parameter to
external equipment*.
• The output operates in one of the following modes as set in Pr x.39 : 0-20, 20-0, 4-20
and 20-4.
• A scaling factor can be applied to the analogue output signal*
*Only available on analogue output 1 with Commander SK.
2.7 Relays
The relay can be used to convey the logic state of any parameter to external equipment.
The logic state is processed as follows:
•
Any source parameter is assigned to relay.
• The logic state can be inverted.
• The software state of the coil is monitored by a parameter.
Function Quantity
Unipolar current output 2
Function Quantity
Number of relays 2 (1 on Commander SK)