Wire Dc Power And Backup Power; Directions To Wire Dc Power/Dc Backup Power - YSI MultiDO 5400 User Manual

B C
F
G
L
N
M
Figure 3.17
5. Complete other wiring to 5X00.
6. Close front panel - page 41.
7. Test AC power.
Test AC Power
Turn on main power. The enabled system values display on the Run Screen after
initial YSI splash screen. If applicable, install and configure DC power backup 46.
Verify AC power at the Menus → System →Version menu - page 148.
See power fail menu - page 138 for AC power event log information.

Wire DC Power and Backup Power

The 5X00 may be powered by most regulated 9.0-16.5 VDC sources that provide
800mA of current and are isolated from mains supply by double or reinforced
insulation. The DC backup power source is user supplied and could be lead acid,
gel cell, or UPS (with 12VDC transformer) external batteries. DC power wires are
terminated at location B on the I/O Board - Figure 3.18 (Common lettering refer-
ences are used for both 5400 and 5500 models).
Installation and Wiring
D
J
O
YSI 5X00
46
Notes:
- The 5X00 does not charge batteries. Quality assurance maintenance proce-
dures should be established if batteries are to be fully powered when used as
back-up power source.
- Power supply voltage above 16.5 VDC may permanently damage the 5X00.
- When back up voltage falls below 9.0 volts, the 5X00 ceases to operate properly.
- Some switching DC power supplies not supplied by YSI may result in noisy
readings.

Directions to Wire DC Power/DC Backup Power

WARNING: Disconnect external power to the unit before wiring.
facturer's safety and installation instructions when providing power to the 5X00
via a DC power supply.
AVERTISSEMENT : déconnectez l'alimentation externe de l'unité avant
d' e ffectuer le câblage. Suivez toutes les consignes de sécurité et d'installation du
fabricant lorsque vous fournissez de l'alimentation au modèle 5X00 par un bloc
d'alimentation à courant continu.
1. Perform steps 1-3 of 5X00 installation.
2. Open front panel - page 41.
3. Feed DC power cable through drilled hole in rubber grommet to location
B. Terminal strip is removable.
CAUTION : Run high and low voltage cables through separate bulkhead and
conduit.
4. Terminate DC power wires to pins (-) and (+) according to manufacturer
instructions and any applicable local electrical codes.
Installation and Wiring
Follow all manu-
YSI 5X00
47