MITSUBISHI | 2033C SERIES UPS | Page Number: |
ELECTRIC | OWNERS / TECHNICAL MANUAL |
B) Input Contacts (for remote access of UPS)
External contacts are provided by the user of the UPS system. The terminal voltage at the UPS is 24Vdc. External dry contacts are to be provided accordingly.
NOTE: Do not apply voltages to remote access input terminals. Damage to UPS may result.
Refer to Figure 2.8 for a typical wiring configuration. Although this figure shows the emergency stop configuration, the same wiring arrangement is used for battery temperature high. See below for terminal connection details.
FIGURE 2.8 Remote "Stop" Contact Connections
UPS Cabinet
Relay
Coil
24 VDC
Relay Coil current : 8.3mA
External to UPS
Cabinet
１
Emergency
Stop
2
Use Momentary Switches
User supplied
Details of input contacts for remote access :
Terminals 1 to 2 “Emergency Stop” contact input
Used to perform a remote UPS emergency power off (EPO).
The load will be dropped.
Terminals 3 to 4 “Battery Temp. High” contact input
Input fed by a thermocouple that monitors battery temperature. The converter float voltage level is reduced for battery
NOTE : In all cases, a switch having a protective cover is recommended in order to reduce possibility of accidental operation.
MITSUBISHI ELECTRIC 2033C SERIES UPS