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2880R-LT, 2881R-LT, 2882R-LT
Revision 1.0
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5.0 CONTROLLER OVERVIEW
See specific drawing(s) attached to this manual for more detail
Figure 3 – CONTROLLER OVERVIEW
TB1/TB2 - Relay Output (Model 2882R only)
2 SPDT relay, Dry Contacts are 3A @ 250 VAC (Resistive), selectable failsafe or non-failsafe,
selectable high or low acting alarm, programmable time delay: 0 – 600 seconds,
0-100% differential.
NOTICE
The controller relays are factory set in a Failsafe mode.
TB3 - Power Input
Power input as per Model. Check if ordered AC or DC. Earth ground is connected to Primary
ground screw inside of enclosure.
TB4 - Network Output
Connect RS485 + and – to the network D+ and D-.
TB5 - mA Output (Optional Isolator for Model 2881R)
The 4-20mA is a sourced output referenced to Ground. It is not loop powered.
TB6 - Probe Input
Probe is factory wired to “P” terminal of PMC2800 connector. The terminal block is disconnected
during shipment for static reasons and has to be re-connected during installation. Connect ‘+’ to ‘+’
and ‘-‘ to ‘-‘ between the controller TB6 and the PMC2800 card. Check polarity to avoid damage.
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