West Control Solutions Pro-EC44 - Manual (Page 29)

Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Pro-EC44 Product Manual - 59540-1 October 2013 Page 22
Plug-in Module Slot 2 - Dual Relay Output Module
If fitted with a dual relay output module, connect as shown. This module has two independent
SPST relays for outputs 2A and 2B, 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 27. Plug-in Module Slot 2 - Dual Relay Module
Plug-in Module Slot 2
– Single SSR Driver Output Module
If fitted with a single SSR Driver output module, connect as shown. The 10V DC pulse signal
(load ≥500 ohms) is isolated from all inputs/outputs except other SSR drivers.
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 Output 2A and 2B. The outputs are 10V DC pulse signals, (load
≥500 ohms).
They are isolated from all inputs/output except other SSR driver outputs. Connect as shown
making note of the shared positive common terminal.
Figure 29. Plug-in Module Slot 2 – Dual SSR Driver Module