Instruction Manual

Doc. #: 0260011-J0 Rev B

5.7 Commissioning the System for the First Time

Tools Required

The following tools are required to commission the AMPS24 HP system for the ﬁrst time:

• Medium ﬂat screwdriver with approximately 3/8" (5 mm) blade width

• True RMS digital multimeter

• Computer with Ethernet port and Internet Explorer 7 or later

• Crossover Ethernet cable if a computer is directly connected to the CXCU controller

• Straight through Ethernet cable if the network connections are made through a router or hub

• Torque wrench

• 3/8" hex driver

Before you begin:

1. Verify that the AMPS24 HP system is mechanically secured to the rack or other structure.

2. Verify that the clearances around the AMPS24 system meet the minimum requirements (see 4.1).

3. Ohm-test the AC and DC bus bars to check for any shorts caused by cut wires, loose bolts,

washers and other conductive material. If possible do Megger testing.

4. Verify that the AMPS24 HP system is correctly and securely grounded to the building grounding

system.

5. Verify that the AMPS24 HP system is correctly and securely connected to the utility and batteries:

a. For the battery connections, follow the manufacturer's recommendations and record the

torques.

b. For the AC connections, torque 2/0 to 14 AWG wire to 120 in-lbs (14 N-m).

c. Triple check the polarity of the battery connections.

6. If this is a 3i+1R shelf system that includes rectiﬁers for charging, verify that all rectiﬁer modules

are removed.

7. Verify that all breakers at the external load distribution box are switched OFF.

8. Refer to "Figure 1 — AMPS24 HP System Components" and verify that the following breakers are

OFF

• AC Input circuit breaker

• Inverter AC Output circuit breaker

• DC breakers

9. Place the internal maintenance bypass switch (MBS) in INVERTER mode.

10. If a Generator is installed, verify that the transfer switch has a minimum 1 second switching delay

or that the transfer is always in phase (+/- 30 deg). (After the installation is complete, see 10.2.3

to set the conﬁguration parameter for Walk-in mode.)

WARNING!

The AMPS24 HP must have no power (utility breaker OFF and locked out) and no modules

installed prior to start-up.