10
2.3.2 Structure layout (Open door)
The structure layout of this series UPS is as shown in Figure 2-4.
Control unit
The control unit of 40 kVA series UPS is as shown in Figure 2-5.
1. Top cover plate
2. Control unit
3. Power breaker
4. Bypass breaker
5. Output breaker
6. Wiring cover plate
7. Wiring holes of
communication wires
8. Maintenance
bypass breaker
Figure 2-4. Structure layout diagram of 40 kVA (/B) UPS
1. Control card (master)
2. SNMP card (optional)
3. System monitor card
4. Control card (minor)
(optional)
5. Expansion dry contact
card (optional)
6. Battery start button
Figure 2-5. Control unit of 40 kVA (/B) UPS
•
Expansion dry contact board (optional)
The expansion dry contact communication port includes 4 input dry contact communication signal and 3
output dry contact signal, detailed definition is as shown in Table 2-2 and Table 2-3.
It can be set to battery trip,
output breaker, bypass
output, start generator, sync/
async signal.
When the signal is valid, COM
and NO is closed, COM and NC
is opened. The allowable
voltage-withstand is 250 V/1A.
No.
Silk-screen
Signal
Function illustration
ND5
ND6
ND7
ND8
1
2
3
4
It can be set to battery
grounding
Reserved
When the signal is valid, NO
and COM is short circuited.
No.
Silk-screen
Signal
Function illustration
ND9
ND10
ND11
ND12
1
2
3
4
Table 2-3. Input dry contact function illustration
Table 2-2. Output dry contact function illustration
•
Control card
The control card includes two ports: PARALLEL port is used for connecting the parallel UPS; BCS port is
double-busbar system port.
•
SNMP card and software (optional)
SNMP card is installed in the SNMP card insert slot of UPS or externally. It can realize remote
management of the UPS through network. For detailed operating setting, please see the user manual of
network adapter.
•
Monitor card
Monitor card includes two network ports: MODBUS port is used for the communication of MODBUS, RS485
port is used for the communication of RS. 485.
