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HC320 PDF даташит

Спецификация HC320 изготовлена ​​​​«ETC» и имеет функцию, называемую «Controller».

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Номер произв HC320
Описание Controller
Производители ETC
логотип ETC логотип 

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HC320 Даташит, Описание, Даташиты
Controller HC320
Technical Information
* HC320 is a versatile controller with 2 independent limits
* Analogue input: 0(4)-20mA
* Zoomfunction: 100% at 10-20mA
* 2 relay outputs
* Optional max. or min. limits
* Start timer and reaction timers
* Hysteresis function on both limits
* Digital input: Optional active high or low
* Alarm blocking using digital input
Version 1.0
Features
Application
HC320 is generally used for the supervision of mA signals. The signal
may be delivered by a standard sensor with 4-20 mA output or from one
of our HCxxx transmitters. The HCxxx familiy consists of transmitters
for pH, O2, conductivity and temperature etc. Power consumption may
be supervised using the HC320 with one of our APM modules.
Analogue input
The analogue input is a current input, and may be set up to either 0-
20mA or 4-20mA. Futhermore, the input may be scaled to display 100%
down to 10mA.
Digital input
The HC320 may be configured to both positive and negative logic on
the digital inputs. Using parameter no. 10 the input may be set to either
active high og active low. With positiv logic the accepted input voltage
range is 5-30Vdc. Negative logic is achieved by connecting the input to
Gnd - i.e. by using a swicth.
Relay output
The unit contains two relays - one for each limit. The relays are both
connection relays, but the polarity may independently be inverted using
parameters no. 7 and no. 8. Alarms are reset by either pressing the ‘Mode’
key or by activating the external reset input, S1.
Limits
The HC320 integrates two limits. All settings for one limit may be alte-
red independently of the other. Each limit may be set up as a Max. or
Min. limit. The setpoint is set in % of the input range. The supervision
may be blocked by activating the S2 input.
Start timer (Ts)
The start timer may be used to avoid alarms during startup of an unstable
process. It is activated when the input reaches 5% . If the timer is set to
0 supervision is performed without using the start timer.
Reaction timers (Tr)
Each limit has a corresponding reaction timer used to avoid alarms if the
limits are exceeded for short periods of time.
Hysteresis
Hysteresis may be activated on both limits. The Hysteresis band is always
placed above a Min. limit and below a Max. limit. If the hysteresis
function is used, an internal auto-reset function is activated. If the hys-
teresis function is used in combination with a Min. limit and the input
signal is 0, the alarm is reset by either pressing the ‘Mode’ key or by
activating the external reset input, S1 - no Auto reset will occur in this
case.
Technical Specifications for HC320
Mechanical
Electrical
Housing: Lexan UL94V-0 (Upper)
Power Supply:
24Vdc ±10%
Noryl UL94V-0 (Lower)
Consumption:
60 mA max
Mounting: M36 for 35 mm DIN rail
Input Current Range: (0)4-20mA, 70Ω
IP Class: Housing IP40. Connector IP20
Digital input:
Pos. logic: 5-30Vdc
Connector: Max 16A. Max 2,5 mm2
Neg. logic: 0V
Max torque 0,6 Nm
Input S1:
External reset
Temp.: -15 to +50 OC
Input S2:
Alarm block
Weight: 200 g
Relay spec.:
250Vac / 5A
Dimens.: D 58 x W 36 x H 86 mm
CE mark:
EN61326A









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HC320 Даташит, Описание, Даташиты
Parameters
Function and Settings
The 11 progammable parameters are shown in the table to the right.
The table shows Par. no., name, function, programming range and
default setting. To access the parameters press the ‘Mode’ key until
the ‘Setup’-LED is lit and the display reads ‘P00’. The ‘Up’and ‘Down’
keys are used to scroll through the programmable parameters. The
parameter to be altered is selected with the ‘Mode’ key and the value
is changed using the ‘Up’ og ‘Down’ keys. The new value is saved by
pressing the ‘Mode’ key and the next parameter may now be selected.
To end setup Par. no. 00 is selected and the ‘Mode’ key is pressed.
Par. no. 1. Type of input is selected - 0-20mA or 4-20mA.
Par. no. 2. Indicates the type of limit 1: Min. or Max.
Par. no. 3. Indicates the type of limit 2: Off, Min. or Max.
Par. no. 4. If needed the input signal may be scaled so that a lower
input signal is set to 100%. In steps of 1 mA 10-20mA may be set to
100%.
Par. no. 5. Displays the hysteresis value for limit 1 - see the figure
below for placement of hysteresis band. Note: an internal autoreset
function is activated when hysteresis is used on a limit.
Par. no. 6. Displays the hysteresis value for limit 2.
Par. no. 7. Polarity of relay 1: Inverted / Non inverted
Par. no. 8. Polarity of relay 2: Inverted / Non inverted
Par. no. 9. Auto-Shut-Down is activated (On), if the HC320 should
block Min. alarms when the input is 0. As an alternative the digital
input S2 may be used to block a Min. alarm.
Par. no. 10. The digital input is configured to be either active high
(Hi) or active low (Lo).
Par. no. 11. is a softwarelock used to avoid changing a parameter by
accident. The softwarelock is stored and reactivated if the unit is tur-
ned off and on again. If the softwarelock is active the parameter settings
may be read but not altered. This also locks the setpoints and timers.
List of Parameters
Nr Parameter
Description
01 Input
Analogindgang
02 Limit 1
Type of limit
03 Limit 2
Type of limit
04 Zoom
Scale of analogue signal
05 Hysteresis 1 Hysteresis value for limit 1
06 Hysteresis 2 Hysteresis value for limit 2
07 Polarity 1
Polarity for relay 1
08 Polarity 2
Polarity for relay 2
09 Auto-Shut-Down Blocks at intentionalt stop
10 Logic
Logic for digital inputs
11 Lock
Lock parameters
Range
0-20mA, 4-20mA
min (Lo), max (Hi)
Off, min (Lo), max (Hi)
10..20mA
Off, 1..50
Off, 1..50
Inverted / non inverted
Inverted / non inverted
Off, On
Neg. (Lo), Pos. (Hi)
Off, On
Default
0.20
Hi
Lo
20
Off
Off
n.in
n.in
Off
Lo
Off
In addition to the parameters in the setup menu the HC320 also features
parameters directly accessible. The parameters are accessed by pressing
the ‘Mode’ key until the LED for the parameter to be altered is lit. The
‘Up’ and ‘Down’ keys are used to alter the parameter. These paremeters
and their function is shown in the following table.
Parameter
Ts [s]
Limit 1
Limit 2
Tr [s] (Limit 1)
Tr [s] (Limit 2)
Description
Start up - timer
Setpoint for limit 1
Setpoint for limit 2
Reaction time for limit 1
Reaction time for limit 2
Range
0,0 .. 999s
5 .. 99%
5 .. 99%
0,00 .. 655s
0,00 .. 655s
Default
2,0
80
20
0,10
1,00
Peak detectors
The HC320 is equipped with a Max.- and a Min.-peak detector. The
value of these is displayed by pressing the ‘Up’ key for Max. peak and
the ‘Down’ key for Min. peak under ‘Input [%]’. The peak detectors are
reset when Ts expires or by simultaneously pressing the ‘Up’+‘Mode’
keys for Max. peak and ‘Down’+’Mode’ keys for Min. peak.
Function
The drawing below shows what could be the startup of a typical AC-
motor (ex. pump) immediately after power has been applied to the mo-
tor. In this example the curve shows the power consumption of the mo-
tor, but as the HC320 may be used as a controller for any given input
signal, the power consumption curve is only used as an example to explain
the function of the HC320. The example is especially useful for illustrating
the startup timer.
Example
In the example the HC320 is set up with limit 1 as a Max. limit and limit
2 as a Min. limit. This is of course optional. The mA signal is generated
by a kW transmitter.
The peak power consumption generated at motor startup is usually filte-
red out from the protection/control cycle using the programmable start
timer (Ts). Ts is activated when the input signal reaches 5%. With Ts
active all supervision is disabled. When Ts expires, the limit, hysteresis
etc. become active. If the input signal drops below 5% the supervision is
switched off again.
Reaction timers and Hysteresis
The drawing shows how the reaction timers (Tr Max and Tr Min) become
active after the limit has been exceeded. Tr is used to avoid alarms unless
the power consumption has been greater than then limit for a certain
time duration. The figure also shows how a possible Maximum- and
Minimum hysteresis band would be placed relative to the corresponding
limit.
Relay functions
The figure under the curve shows the condition of the two relays in the
non-inverted and inverted states. ‘On’ means that the relay is closed -
i.e. there is a connection through the relay.
Auto shut-down
The generation of a Min. alarm when the motor is stopped intentionally
may be avoided by enabling the auto shut-down function using parame-
ter no. 9.
Installation










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