MITSUBISHI ELECTRIC 2033C SERIES UPS
MITSUBISHI
ELECTRIC
2033C SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
2-7
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
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 over-temperature conditions. The
external thermocouple will be user supplied
NOTE :
In all cases, a switch having a protective cover is recommended in order to reduce
possibility of accidental operation.
User supplied
１
Relay Coil current : 8.3mA
Use Momentary Switches
UPS Cabinet
External to UPS
Cabinet
Relay
Coil
24 VDC
Emergency
Stop
2
