Step 6 Wire Relay Outputs; Directions To Wire Relay Outputs; Wiring A Contactor - YSI MultiDO 5400 User Manual

Note:
- Temperature sensors wired to Aux 3, Aux 4, Aux 5, and Aux 6 are displayed
on the 5X00 by default as Temp 1, Temp 2, Temp 3, and Temp 4 respectively.
For instructions on changing the default display settings, see section Name
Devices/Sensors in Chapter 4 Configuring the 5X00.
Test Temperature Sensor
Apply power to 5X00. See Temperature Set up- page 168 to configure temperature
system. Place the temperature sensor in solutions of varying temperature and verify
the sensor readings with another temperature sensor.

Step 6 Wire Relay outputs

The 5X00 has eight (8) on board non-fused relays rated at 240VAC@5AMPs
(110VAC@10AMPs) of switching capacity. Relays energize and de-energize periph-
eral control, alarm and/or timer devices. Terminate relay device wires to Normally
Open (NO), Normally Closed (NC), and Common (C) sockets as required for the
application. (See 5X00 I/O Board wiring diagram on inside of front panel for iden-
tification of relay number and pin position.) Relays 1-4 are terminated at location
C on I/O Board. Relays 5-8 are terminated at location N on I/O Board - 3.21.
(Common lettering references are used for both 5400 and 5500 models).
CAUTION: Do not overload relay(s). Check manufacturer specifications for
inductive current/amp at power up. Use a contactor if necessary - figure 3.22.
(Common lettering references are used for both 5400 and 5500 models).

Directions to Wire Relay Outputs

WARNING: Disconnect external power to the unit before wiring. If any of the
relay contacts are connected to a "hazardous-live" circuit, ALL contacts on ALL
relays must be considered "hazardous live" and appropriately protected from user
contact outside the 5X00 enclosure.
AVERTISSEMENT : déconnectez l'alimentation externe de l'unité avant d' e ffectuer
le câblage. Si un contact de relai quelconque est connecté à un circuit sous ten-
sion dangereuse, TOUS les contacts de TOUS les relais doivent être considérés
comme étant sous tension dangereuse et doivent être protégés de façon adéquate
de tout contact de l'utilisateur hors du boîtier du modèle 5X00.
1. Perform steps 1-4 of 5X00 installation and step 5 as required for ap-
plication.
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2. Open front panel - page 41.
3. Feed relay device wires through drilled hole in rubber grommet and to
locations C and/or N. The terminal strip is removable.
: Run high and low voltage cables through separate bulkhead and
CAUTION
conduit.
4. Terminate relay device wires to the relay number (1-8) that will be con-
figured for device. Wire devices to NC or NO and C pins depending
on device configuration.
C
B
F
G
L
N
M
Figure 3.21
5. Complete other wiring to 5X00.
6. Close front panel -41.
7. Test relays.

Wiring a Contactor

The eight onboard relays are rated at 240VAC@5AMPs (110VAC@10AMPs) switch-
ing capacity. Contactors should be used for devices drawing current loads higher
than relay specification. See figure 3.22 for contactor wiring.
Note:
- Contactor must meet the electrical requirements of the load.
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