Mitsubishi Electric 9900B Series Owner Technical Manual page 47

MITSUBISHI
ELECTRIC
CAUTION: UPS power terminals are supplied with stud type fittings.
6. Procedure for Cable Connections for Parallel Operation System
(1) Confirm the number of units to be connected in parallel. Identify the input/output power
terminal blocks and control wire connections for parallel operation systems, as shown
in the appropriate Figures 3.4 and 3.5.
(2) Connect the external control wire and power wire.
a) Control wire connections
Parallel configuration wiring (Refer to Figure 3.5.)
- 52L control signal from Critical Load Cabinet (CLC) to UPS-n IOAU-09
(TN1– 5, 6).
- Parallel control signal for TLIN, TLOUT, CIN, COUT as shown in Fig. 3.5.
b) Power wire connections
From UPS AC Output Terminals to Critical Load Cabinet (CLC) (refer to Figure
3.4 and 3.5).
MITSUBISHI ELECTRIC 9900B SERIES UPS
9900B SERIES UPS
OWNERS / TECHNICAL MANUAL
It is recommended that compression lugs be used to fasten all
input/output power cables.
Page Number:
3-4