Ametek Thermox WDG Insitu, Руководство пользователя

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Installation and Start-Up | 3-21
Current output Connections
standard current outputs
Standard current output connections are labeled as follows on the wiring card of
the Series 2000 control unit (see Figure 3-20):
IOUT1 + and -
IOUT2 + and -
These current outputs are referenced as current outputs 1 and 2 in software. Be
sure to observe polarity when connecting current output devices to these termi-
nals.
Current outputs 1 and 2 are capable of driving up to 1200 ohm loads.
The standard control unit with no options provides two current outputs. These
two current outputs (1 and 2) are isolated from the control unit, but are not iso-
lated from each other. If you have the combustibles option, current outputs 3 and
4 are also isolated from the control unit and from current outputs 1 and 2.
If you intend to power the current outputs from an external power
supply, see the “External Powering and Modulation of External
Power Using Current Outputs” appendix.
Figure 3-20. Current output connections example.
NOTE
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