Communication
Control Terminals
The cables should be connected to the control terminals with cable clips. Input and output terminals have a functional isolation from terminal to terminal. They are connected to the UPS chassis through individual 1 MΩ resistors.
| 2 | + Polarity | Signal Input 1 (Programmable) |
| 1 | – Polarity | |
|
| ||
| 2 | + Polarity | Signal Input 2 (Programmable) |
| 1 | – Polarity | |
UPS |
| ||
|
|
| |
Connectors | 2 |
|
|
(see Figure 32 | REPO Normally Open |
| |
1 |
| ||
on page 53) |
|
| |
| 2 | REPO Normally Closed |
|
| 1 |
| |
|
|
| |
| 3 | Common |
|
| 2 | Normally Closed | Relay Output |
| 1 | Normally Open |
|
Figure 39. External Control Terminal Connections
NOTE If using a semiconductor switch type, pay attention to the proper polarity. A relay or other mechanical control is preferred.
Powerware® 9155 UPS | 61 |