64
9.2 RS-232 Interface
The RS-232 port is available for UPS monitoring, control, and firmware
updates.
The cable pins for the RS-232 communication port are identified in the
following illustration.
RS-232 communication port pin assignments
Pin Signal name
Function
Direction from
the UPS
1
Unused
Not applicable
2
Tx
Transmit to external device
Out
3
Rx
Receive from external device
In
4
Unused
Not applicable
5
GND
Signal common
Not applicable
6
Unused
Not applicable
7
Unused
Not applicable
8
Unused
Not applicable
9
Unused
Not applicable
9.3 Dry contact Interface
The UPS incorporates build-in single programmable relay output with
potential free contact for remote alarm indication: Dry out port; And
incorporates single signal input: Dry in port. See figure in the UPS rear panel
for the locations of the ports.
The relay output can be configured by protocol command setting, the default
output contact is “Summary Alarm”; The signal input to control UPS On/Off
status does not need to be configured, its function is the same as one button
to control UPS On/Off status.
Note: The relay output contact must not be connected to any utility
connected circuits. Reinforced insulation to the utility is required. The relay
output contact has a maximum rating of 30Vac/1A and 60Vdc/2A normal
values.
The following figures show schematic of the dry out/in contacts.
Содержание PowerControl C500R-060-B UPS
Страница 31: ...28 Figure 4 5 and ensure all breakers are open ...
Страница 41: ...38 Figure 5 7 HE mode ...
Страница 48: ...45 Figure 5 14 Main menu tree ...
Страница 56: ...53 Figure 5 19 Setting menu tree ...
