GE Industrial Solutions H5692448 Power Systems Infinity M1 (NE-M) - Manual (Page 52)

NE-M Installation Guide H5692448
CC848815325 r06 May 2013 52
Install Rectifiers
• Refer to the controller manual for details of controller operations.
• Use the above rectifier/converter installation and removal procedures as needed in the following steps.
Step Action
CAUTION: Improper Operation
Install only NE Eco rectifiers in Eco systems DC (PV or solar) powered positions. 21
Eco systems require Eco rectifiers in all DC powered positions.
Eco rectifiers have unique badge symbols - Table 1.
CAUTION : Equipment Damage
Do not install rectifiers before battery bus voltage and polarity has been verified.
Rectifiers and system damage will result from incorrect battery bus polarity.
The damage may not be immediately evident.
1 Turn on input power circuit breakers 22 to apply power to the system rectifier positions.
2 Install a rectifier in an available rectifier position.
3 Wait until the rectifier establishes communications with the controller (the red Fail LED stops flashing).
4 Verify rectifier green Norm LED is lit.
5 Apply 10 amperes of load to the system.
6 Verify the contactor closes and connects the battery strings (if equipped).
7 If an audible alarm is present, press the ENTER key to MUTE the audible alarm.
8 Verify all LEDs are green on the controller and the display is visible with the proper voltage shown.
9 Increase the system load current to 20 amperes.
10 Install rectifier in the next position.
11 Wait until the rectifier establishes communications with the controller (the red Fail LED stops flashing).
12 Verify green rectifier Norm LED is lit.
13
Verify that each rectifier is present and verify the rectifier output currents by using the controller front panel
(Menu > Status > Rectifiers > Rectifier Currents).
14 Repeat from Step 10 for to install each rectifier.
Continue after installing all rectifiers.
15 Increase the system load current to 50 amperes.
16
Verify the rectifiers share the load and the voltage regulation is correct. Rectifiers should load share after 2
minutes to within 2% of the total average output.
17 Verify front panel display voltage is within 0.5% of the Float Setpoint.
18 Remove a rectifier and ignore the request to remove missing equipment.
19
Verify the controller identifies the rectifier as missing to verify that the Minor Communication Fail alarm is
operational.
20 Re-install the rectifier and verify that the alarm clears.
21 Non-Eco rectifiers may be installed in AC powered positions of Eco systems – NOT RECOMMENDED.
Use of non-Eco rectifiers in Eco systems increases the risk of improperly filling system rectifier positions.
22 AC and PV input power circuit breakers for Eco systems.