Hach sc200 - I;O Modules; Installing a Snap-In I;O Module; Snap-In I;O Modules

Chapter 4,
I/O Modules
• The ModCon75 Controllers is delivered with one Snap-in I/O
Module installed at the factory. An optional Remote Relay Module
is also available and is described in detail in Appendix C.
Snap-in I/O Modules
• Snap-in I/O Modules provide a ModCon75 Controller with an on-
board I/O configuration.
• The Snap-in I/O Module plugs directly into the back of the
ModCon75 Controller, creating a self-contained control unit with a
local I/O configuration.
Features
• 16 isolated digital inputs, including two high-speed counter inputs,
type pnp/npn (source/sink)
• 10 isolated relay outputs
• Four isolated pnp/npn (source/sink) transistor outputs
• Three analog inputs (not used in this application).
To avoid electric shock, turn OFF power to the unit before
installing I/O modules.
Installing a Snap-in I/O Module
• Snap-in I/O Modules can be installed before or after mounting the
unit.
• The protective cap covering the I/O connector on the back of the
controller:
• must cover the connector when a Snap-in I/O Module is not
attached to the controller
• must be removed before installing a module.
1. Pry off the cap with a screwdriver.
2. Line up the ModCon75 Controller circular guidelines with the
Snap-in I/O Module guidelines (FIGURE 4-1).
"
WARNING
4-1