CS2 SERIES
–OPERATION MANUAL(EN)-A-2017-11-16
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■
Relay Functions
●
DO(Digital Output) (
do
)
The function has been designed not only a meter but
also an I/O interface. In the case of motor control
cabinet
can't get the remote function. It's very easily to
get the ON/OFF status of switch from CS2 series with
RS485 function.
If the
[
ry_.md
]
had been set
do
, the relay will be
energized by RS485 command directly, but no longer to
compare with set-point.
Start delay band
[
rYsb
]
and Start delay time
[
rYsd
]
The functions have Been designed for,
1. To avoid starting current of inductive motor (6 times of
rated current) with alarm.
2. If the
ry_.md
relay energized mode had been set to
be
lo
(Lo) or
lOhld
(Lo & latch). As the meter is
power on and no input to display the "0" caused the
relay will be energized. User can set a band and delay
time to inhibit the energized of relay.
●
Start band
[
rYsb
]
(Fig.2-
):
Settable range from 0~9999 Digits
●
Start delay time
[
rYsd
]
(Fig.2-
):
Settable range from
0.0(second)~9(minutes)59.9(seconds);
Start Delay
Fig.2
Start Delay Time
Start Band
Hi Setting
Relay
Energized
ON
Inhibit
Inhibit
[
rYsb
]
[
ry_.sp
]
[
rYsd
]
Hysteresis
[
ry_,hy
]
(Fig.3-
)
Settable range from 0~9999 Digits
As the display value is swing near by the set point to
cause the relay on and off frequently. The function is to
avoid the relay on and off frequently such as
compressor
…….etc.,
User can set a band to prevent from the relay on and
off frequently
Relay energized delay
[
ry_,rd
]
(Fig.3-
)
Settable range from
0.0(second)~9(minutes)59.9(seconds);
The function is to avoid the miss action caused by
noise. Sometime, the display value will swing caused by
spark of contactor
…………etc.. User can set a period to
delay the relay energized.
Relay de-energized delay
[
ry_,fd
]
(Fig.3-
)
Settable range from
0.0(second)~9(minutes)59.9(seconds)
Energized / De-energized
Delay & Hysteresis
Fig.3
ON
Hysteresis
De
-e
n
e
rg
iz
e
d
d
e
la
y
ti
m
e
Hi Setting
Relay
Energized
[
ry_.sp
]
[
ry_.hy
]
[
ry_.rd
]
[
ry_.fd
]
E
n
e
rg
ize
d
d
e
la
y
ti
m
e
CS2 series offer the 4 relay outputs with more
flexible and multi-functions. They can be programmable
individually in
[
relay group
]
。
Please refer to the
description as following;
Relay energized mode Hi / Lo / Go-1.2 / Go-2.3 /
Hi.HLd / Lo.HLd / DO
●
Hi(Fig.1-
) (
hi
):
Relay will be energized,
when PV > Set Point
●
Lo(Fig.1-
) (
lo
):
Relay will be energized,
when PV < Set Point
●
Go-1.2(Fig.1-
) (
go-!2
):
This function is
programmable for Relay 3 or 4 only. If the
Relay 3 or 4 set to be Go function, the
relay will compare between
[
ry1.sp
]
and
[
ry@sp
]
.
Go relay energized when the condition is
[
ry1.sp
]
(Hi) > PV >
[
ry@sp
]
(Lo)
●
Go-2.3(Fig.1-
) (
go-@3
):
.
This function is
programmable for Relay 4 only. If the
Relay 4 set to be Go function, the relay will
compare between
[
ry@sp
]
and
[
ry#sp
]
.
Go relay energized when the condition is
.
[
ry@sp
]
(Hi) > PV >
[
ry#sp
]
(Lo)
Hi / Lo / Go Relay Energized
Fig.1
hi
lo
Go-12
[
ry_.sp
]
[
ry_.sp
]
[
ry_.md
]
Hi Setting
Hi Relay Energized
ON
Lo Setting
Lo Relay Energized
ON
ON
Go Relay Energized
ON
ON
●
Hi alarm & latch / Lo alarm & latch (
hIhld
/
lOhld
)
The relay energized with latched function is for
electrical safety and human protection.
For example, a current meter relay installed for the
over current alarm of motor. Generally, over current of
motor caused by over load, mechanical dead lock, aging
of insulation and so on. Above cases will alarm in the
meter, if the user doesn't figure out the real reason and
re-start the motor. It may damage the motor. The
functions of Hi.HLD & Lo.HLD are designed must be
manual reset the alarm after checking out and solving
the issue. It's very important idea for electrical safety
and human protection.
As the PV Higher (or lower) than set-point, the relay
will be energized to latch except manual reset by from
key in
[
user level
]
or
[
eci
]
(ECI) set to be
rYrst
is
closed.
Relay Energized Latch & Reset
Hi. HLd(Hi Latch)
Relay Energized
ON
Reset Relay Latch
by ECI or Front Key
ON
Level Trigger
Hi Setting
hIhld
[
ry_.md
]
rYrst
[
eci._
]
[
ry_.sp
]