16
Plug-in Module Slot 3 – Single SSR Driver
Output Module
If fitted with a single SSR Driver output module, con-
nect as shown. The 10V DC pulse signal (load resis-
tance
≥
500 ohms) is isolated from all inputs/outputs
except other SSR drivers.
Figure 34
Plug-in Module Slot 3 – Single SSR Driver Module
Plug-in Module Slot 3 – Dual SSR Driver
Output Module
If fitted with a dual SSR Driver output module, the two
solid-state relay driver outputs are designated as Out-
put 3A and 3B. The outputs are 10V DC pulse signals,
(load resistance
≥
500 ohms). They are isolated from all
inputs/output except other SSR driver outputs. Con-
nect as shown making note of the shared positive
common terminal.
Figure 35.
Plug-in Module Slot 3 – Dual SSR Driver Module
Plug-in Module Slot 3 -
Triac Output Module
If fitted with a Triac output module, connect as shown.
This output is rated at 0.01 to 1 amp @ 280V AC
50/60Hz. Isolated from all other inputs and outputs. A
snubber should be fitted across inductive loads to en-
sure reliable switch off of the Triac.
Figure 36. Plug-in Module Slot 3 - Triac Module
Plug-in Module Slot 3 - Transmitter Power
Supply Module
If fitted with a transmitter power supply module (Tx-
PSU), connect as shown. The output is a 24V nominal
(unregulated, 19 to 28V DC), supply at 22mA max. Only
one TxPSU is supported, do not fit in slot 3 if one is
already fitted in slot 2.
Figure 37. Plug-in Module Slot 3 -
Transmitter Power Supply Module
Plug-in Slot A Connections
A selection of plug-in modules are available for Mod-
ule Slot A. They can be fitted during manufacture, or
purchased and fitted later by the user. Depending on
their functions, they are setup Input or Communica-
tions configuration sub-menus. Connect as illustrated
below.
Plug-in Module Slot A – Basic Auxiliary
Input Module
If fitted with a basic auxiliary mA/V DC analogue input
module, connect as shown. Isolated from all inputs/
outputs. Consider using the 2nd auxiliary input (if avail-
able) instead, as this has additional features and leaves
plug-in module slot A free for other modules.
Figure 38. Plug-in Module Slot A –
Basic Auxiliary Input Module
Plug-in Module Slot A -
Ethernet Communications Module
If fitted with the Ethernet communication module, the
communications protocol available is Modbus TCP.
Isolated from all inputs/outputs. If necessary, cut out
the removable panel to access the RJ45 connector
through the top of the case. No rear connections are
required.
Summary of Contents for Chromalox 4081
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