The operation of the uncorresponding position startup function can be described
using a module diagram. All the modules in the diagram are explained in the next
sections.
Signal power
supply check
CB_OPEN_CMD
CB_POSOPEN
CB_POSCLOSE
SI_PWR_ON
OPERATE
Protection
activation
check
Operate logic
GUID-2BEA9587-68B3-4B76-BAA5-D53DAA8A0D97 V2 EN
Figure 328: Functional module diagram
Signal power supply check
This module is used for signal power supply supervision. The activation of the
SI_PWR_ON input enables the Operate logic module after the value of the CB
power on delay time setting has elapsed.
Protection activation check
The main purpose of the module is to disable the Operate logic module when the
CB open command has been deployed by another function, for example, a
protection or control function. The activation of the CB_OPEN_CMD input disables
the Operate logic module immediately. The duration of the disabling time can be
set with the CB open hold delay setting.
Operate logic
The OPERATE output of this module can be used for closing the circuit breaker if it
is opened for an unknown reason. The OPERATE output is activated immediately
after the CB_POSOPEN input becomes active and CB_POSCLOSE inactive. The
pulse length for the OPERATE output signal can be set with the Operate pulse time
setting.
The module is disabled if the signal power supply is faulty
(SI_PWR_ON = FALSE) or the open command is sent to the
breaker (CB_OPEN_CMD = TRUE).
Section 6 1YHT530004D05 D
Supervision functions
604 615 series
Technical Manual
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