YSI 5200A - Manual (Page 25)

YSI 5200A
48 YSI 5200A
49
Note:
Contactor must meet the electrical requirements of the load. -
Blower X
Contactor
Contacts Coil
YSI 5200A contactor wiring
Power for Blower Power for Contactor
Switched Power
wire contactor power to “C” pin
wire second wire to “NC”/”NO” as required for application
Figure 3.20
Test Relay Outputs
Apply power to 5200A. Verify device activates at relay test. See Relay Test - page
123.
Note:
Entering the relay test menu turns off any active relays and disables any sensor,
aux, and timer system relays from energizing regardless of the value or condition.
Systems are not reset when the Relay Test menu is exited. To reset the systems after
exiting the Relay Test menu, power cycle the 5200A.
Step 6 Wire Aux Inputs
The 5200A has two auxiliary (aux) inputs. Aux inputs can be used for digital (open/
closed dry contacts) or analog (0-1VDC, 0-5VDC , or 4-20mA) inputs. Aux inputs
can be used for a variety of applications including: level switch, pressure switch,
and/or an external instrument with an analog recorder output. Aux input wires are
terminated at location K - figure 3.21. (See 5200A I/O board wiring diagram on
Installation and Wiring Installation and Wiring
inside of front panel for identification of aux system number and pin position.) See
Digital Input example - figure 3.22 and Analog Input example - figure 3.23.
Notes:
All aux inputs have input protection, the maximum input voltage should -
not exceed 6 VDC.
Analog systems will not monitor and/or alarm properly if the device that is -
installed and configured operates outside the configured analog range.
For proper digital input operation, use low impedance switches and wir- -
ing. The total resistance should not exceed 200 Ω (ohms).
Directions to Wire Aux Inputs
WARNING: Disconnect external power to the unit before wiring.
AVERTISSEMENT : déconnectez l’alimentation externe de l’unité avant
d’effectuer un câblage quelconque.
Perform steps 1 - 4 of 5200A installation. 1.
Open front panel - 2. page 39 .
Feed aux device wires through drilled hole in rubber grommet to locations 3.
K. Terminal strip is removable.
CAUTION: Run high and low voltage cables through separate bulkhead and
conduit.
Use (1) or (2) pin to terminate one wire and (G) to terminate ground wire. 4.
(G) pin is the common ground for Aux 1 and 2.
CAUTION : Aux inputs are not isolated. Devices connected must be electrically
isolated from ground and the water.