IONPURE
®
DC POWER CONTROLLER
– IP-POWER600-G2
IP-POWER600-G2 MAN REV. 11
Page 17 of 28
Open On/Off Input
Possible Cause
Action
Low flow switch activated (open)
Check operation of flow switch.
Check availability of feed water.
Check upstream and downstream valves.
No jumper at on/off interlock input on G2 board
(if remote on/off interlock not used)
Install jumper.
Remote on/off interlock activated (open)
Check status of RO system, CEDI feed pump or
other remote on/off interlock (system specific).
No Command Signal or No Load
Possible Cause
Action
No communications with G2 display board
Check connections and condition of Cat 6 cable.
Verify that it is a standard cable, not crossover.
DC output current set to 0.0 amps on G2 display
board
Increase the current setpoint.
No analog signal from PLC or “IP-DSP” display
board
Check for DC voltage at Ic+ - Ic- terminals
(should be >0 and ≤5 VDC).
Defective wiring or “IP-LX” ribbon cable
Check for DC voltage at Ic+ - Ic- terminals
(should be >0 and ≤5 VDC).
CEDI module not connected to DC output (no
load) or damaged DC output wires
Check connections and wires between DC output
and CEDI module.
External control set incorrectly
Determine if the display or PLC will be the source
of control, and change to YES/NO accordingly
Short Circuit
Possible Cause
Action
Incorrect wiring to CEDI module
With power off, disconnect wiring at power
controller and check for continuity (trace short).
