4-14
PAT-T 4kW
Fan failure protection (FAN)
This function is activated when the fan rotation drops to an abnormal level, and the
output turns off.
Fig.4-14 Alarm display of fan fail
u
re protection (FA
N
)
Incorrect sensing connection protection (SENSE)
This function is activated when the remote sensing wires are connected with the
polarity reversed of + (pos.) and - (neg.), and the output turns off.
Fig.4-15 Alarm display of incorrect sensing connection protection
(SE
N
SE)
Input open-phase protection (PHASE)
Three-phase input power supply may operate normally even when one of the phase
is open. However, operating the PAT in an open-phase condition puts stress on the
PAT and may cause a malfunction.
To prevent a malfunction from abnormal input, this function is activated when one
or more phase is open among the three-phase input, and the turns off.
•
When the PAT operates in the single-phase input mode, this function (Input
open-phase protection (PHASE), becomes invalid.
Fig.4-16 Alarm display of inp
u
t open-phase protection (PHASE)
Shutdown (SD)
Shutdown is not activated as a result of the PAT detecting an error. It is a function
used to turn off the output by applying an external signal to the J1 connector on the
rear panel when an abnormal condition occurs.
You can select whether to trip the breaker (CF27: ON/OFF) when the shutdown
signal is applied.
Fig.4-17 Po
w
er-off display of the sh
u
tdo
w
n (SD)
EXT
EXT
RMT
LOCK
PRESET A
B
C
A
V
OUTPUT
ALARM
C
V
On
EXT
EXT
RMT
LOCK
PRESET A
B
C
A
V
OUTPUT
ALARM
C
V
On
EXT
EXT
RMT
LOCK
PRESET A
B
C
A
V
OUTPUT
ALARM
C
V
On
See
See
EXT
EXT
RMT
LOCK
PRESET A
B
C
A
V
OUTPUT
ALARM
C
V
On
Summary of Contents for PAT160-25T
Page 17: ...General Description This chapter describes an overview and describes the features...
Page 22: ...1 6 PAT T 4kW...
Page 34: ...2 12 PAT T 4kW...
Page 106: ...6 12 PAT T 4kW...
Page 158: ...7 52 PAT T 4KW...
Page 159: ...Maintenance This chapter describes maintenance such as cleaning inspecting and calibrating...
Page 171: ...Specifications This chapter describes the specifications and gives the dimensions of the PAT...