15
Figure 28.
Plug-in Module Slot 2 – Single SSR Driver Module
Plug-in Module Slot 2 – 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 2A and 2B. 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 29.
Plug-in Module Slot 2 – Dual SSR Driver Module
Plug-in Module Slot 2 -
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 30. Plug-in Module Slot 2 - Triac Module
Plug-in Module Slot 2 -
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 2 if one is
already fitted in slot 3.
Figure 31. Plug-in Module Slot 2 -
Transmitter Power Supply Module
Plug-in Slot 3 Connections
A selection of plug-in modules are available for Module
Slot 3. They are interchangeable with slot 2, but not
slot 1.They can be fitted during manufacture, or pur-
chased and fitted later by the user. Modules in slot 3
are designated Output 3, and for dual modules Output
3A and 3B. Their functions are set in the Output Con-
figuration sub-menu. Connect as illustrated below.
Plug-in Module Slot 3 –
Single Relay Output Module
If fitted with a single relay output module, connect as
shown. The relay contacts are SPDT and rated at 2
amps resistive, 240 VAC. If it is used to switch mains
voltages, the supply should be separate from the in-
strument supply and should be correctly switched and
fused.
Figure 32.
Plug-in Module Slot 3 – Single Relay Module
Plug-in Module Slot 3 - Dual Relay Output
Module
If fitted with a dual relay output module, connect as
shown. This module has two independent SPST relays
for outputs 3A and 3B, with a shared common terminal.
The contacts are rated at 2 amp resistive 240 VAC. If
used to switch mains voltages, the supply should be
separate from the instruments mains supply and the
contacts should be correctly switched and fused.
Figure 33
Plug-in Module Slot 3 - Dual Relay Module
Содержание Chromalox 4081
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