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090 Series Reference Manual

2/21/05

Digital Control Systems

Page: 5

FUNCTIONAL DESCRIPTION

This section provides a technical overview of the M090 series.

Block Diagram Hardware Description.

The block diagram of the 090 series is shown as Figure 1.

3

Optically

Isolated

Triac

Drive

Optically

Isolated

Triac

Drive

3

Relay & Driver

2

OPTIONAL

M090 Main Power ECB

(With Optional Alarm Relay)

J4

J5

UP

DOWN

LOAD

LOAD

M090 Auxilary

Power ECB

HOT

NEUT

SAFETY

GND

SENSOR

INPUT

M090 Main ECB

90 - 280VAC

50 - 60 Hz

+5V

RELAY

(optional)

*LOAD1

GND

*LOAD2

+5V

GND

260VAC

15A (MAX)

260VAC

15A (MA

Figure 1:

090 Series Block Diagram

Overview

The 090 Series controller’s main ECB contains the power supply as well as controller logic and
implements the user interface consisting of two buttons (‘UP’ and ‘DOWN’) and a numeric LED
display. The process sensor (various temperature sensors and voltage inputs are supported
depending on the exact controller configuration) and line voltage operating power are the inputs
to the main ECB. The controller’s load and alarm outputs are generated as isolated, TTL level
signals on the main ECB and used to actuate the alarm relay and load contacts located on the
Power ECB.

A maximum of two power ECBs can be connected to each main ECB. The power ECB
implements an optically isolated, electrically floating triac. The two power terminals of the triac
(MT1 & MT2) are terminated with ¼” ‘quick connect’ tabs and intended to be connected in
series with the controlled load as shown in Figure 1. The 090 series triac power ECBs can
control only alternating current. Do not attempt to use them for controlling direct current loads.

SUNSTAR传感与控制 http://www.sensor-ic.com/ TEL:0755-83376549 FAX:0755-83376182E-MAIL: [email protected]

SUNSTAR自动化 http://www.sensor-ic.com/ TEL: 0755-83376489 FAX:0755-83376182 E-MAIL: [email protected]

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Содержание 090 Series

Страница 1: ...s Inc 7401 SW Capitol Hwy Portland OR 97219 USA www dcs inc net Phone 503 246 8110 Fax 503 246 6747 Copyright c 2004 SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376182E MAIL szss20 163 com SUNSTAR自动化 http www sensor ic com TEL 0755 83376489 FAX 0755 83376182 E MAIL szss20 163 com ...

Страница 2: ... Rev Date Description 10 22 2004 Preliminary version release 2 21 2005 1ST UL draft SUNSTAR传感与控制 http www sensor ic com TEL 0755 83376549 FAX 0755 83376182E MAIL szss20 163 com SUNSTAR自动化 http www sensor ic com TEL 0755 83376489 FAX 0755 83376182 E MAIL szss20 163 com ...

Страница 3: ... Electrical Connections 8 Sensor Connection 8 Power Line Connection 8 Control Output Connections 9 Jumpers 9 Option Port 9 Power ECB Electrical Connections 10 Load Connection 10 Control Cable Connection 10 Alarm Relay 11 Load Circuit Considerations 12 Triac Power Dissipation 12 Triac Fault Protection 12 Mechanical Mounting 12 Main Board Mounting 13 Power Board Mounting 14 SUNSTAR传感与控制 http www sen...

Страница 4: ...he OEM purchaser of the control It describes the controller s operation and covers the installation as well as the front panel operation of the 090 series Purchasers of 090 series controllers are granted a license to make copies of the Front Panel Operation section of this manual for the sole purpose of providing operating instructions to their end users The Functional Description section provides...

Страница 5: ...ps RMS Sensor inputs available sensor type must be specified when ordering 10 mV C integrated sensor Type J or K thermocouple 100 Ohm RTD Analog voltage 5 volts max Alarm Contact optional 2 dry contacts field configurable as NO or NC Rated 110VAC 1A Alarm Sounder optional 85dB 2 KHz beeper Operating Power Requirements 80 to 280 VAC 45 65 Hz 5W max Ambient Operating Conditions 0 to 50 degrees Celsi...

Страница 6: ...isplay shows the current process value The display intensity is steady and at most a single decimal point is illuminated The controller always returns to this mode from any other mode after approximately five seconds of no front panel button activity If over under alarms are enabled and the process value is in either over or under alarm the display will alternate between showing either HI or LO de...

Страница 7: ...e display blinks the current process value to indicate that it can be changed with the UP and DOWN buttons After approximately five seconds elapse without either button being pressed the controller will exit calibration mode If the displayed value is to be changed the operator must begin making the change within a few seconds after the display begins to blink When the changes are complete the cont...

Страница 8: ...y The process sensor various temperature sensors and voltage inputs are supported depending on the exact controller configuration and line voltage operating power are the inputs to the main ECB The controller s load and alarm outputs are generated as isolated TTL level signals on the main ECB and used to actuate the alarm relay and load contacts located on the Power ECB A maximum of two power ECBs...

Страница 9: ...elay respectively on the primary power ECB LOAD2 actuates the triac on the auxiliary power ECB if present All three signals along with power appear on connector J4 so that a single control cable can be used to remotely drive the full complement of outputs In addition LOAD2 along with power appears on J5 for applications where the main and auxiliary power ECBs are most efficiently served with two s...

Страница 10: ...Specific options exist for driving small inductive loads such as solenoids Consult the factory for applications driving inductive and higher power above 15 amps loads The load contact is NOT fused IT IS THE RESPONSIBILITY OF THE END USE EQUIPMENT TO PROVIDE THE OVER CURRENT PROTECTION APPROPRIATE TO THE APPLICATION Power ECBs are connected to the main ECB through an isolated low voltage TTL interf...

Страница 11: ...n in Figure 2 The exact sensor type is determined by the controller configuration The sensor cable should not be routed near power carrying wires to minimize noise pick up Power Line Connection The controller s operating power is connected at the three quick connect tabs located on the left hand edge of the main ECB as shown in Figure 2 Beware that traces and components in the area shown crosshatc...

Страница 12: ...ECBs are located distant from the main ECB it may be more convenient to run a single cable that carries all the signals needed to run both power ECBs The signals on J4 and J5 are shown in the table below Signal Description J4 Pin J5 Pin LOAD1 Active Low TTL control signal for main triac Connects to LOAD pin on power ECB 1 N C 5 V 5 volt DC operating power 2 2 GND system ground 3 3 RLY Active high ...

Страница 13: ...s There is a 3 16 quick connect tab marked NO CONNECT and covered with a plastic cap located as shown in Figure 3 This is the gate terminal of the triac It is at power line potential and must never be connected to The power ECB triac starts conducting at the next power line voltage zero crossing after the LOAD signal voltage falls below the logic low threshold The triac stops conducting at the nex...

Страница 14: ...6 04 640442 4 4 position IDC connector for 26 AWG wire CE100F24 03 640441 3 3 position IDC connector for 24 AWG wire Table 5 Control Cable Connector Vendor PNs Alarm Relay Figure 4 Alarm Relay Contact Circuit An optional DPDT relay rated 120 VAC 1A can be supplied on only one power ECB per Model 090 When the relay option is installed two independent dry contact closures appear on the two 2 positio...

Страница 15: ... this point is 85 C If the temperature at this point exceeds 85 C more heat sink area must be provided or the load current reduced Triac Fault Protection The load circuit is not fused The triac used on the power ECBs is extremely rugged and can usually endure load short circuit current for long enough to trip a 15 to 20A branch circuit breaker in most applications In low source impedance applicati...

Страница 16: ...of the panel In applications where other mounting schemes will be used some important tolerances to keep in mind are shown the table below Dimension Value in Inches Switch shaft length from front surface of ECB 374 006 Switch actuation travel 010 005 Thickness of plating at display board mounting holes 004 001 Table 7 Important Front Panel Mounting Dimensions Clearance and Ventilation All main boa...

Страница 17: ...ensions of the main ECB are shown in Figure 6 Figure 6 Main ECB Mechanical Dimensions in inches Power Board Mounting This section discusses various issues related to mechanically mounting the power board in the equipment to be controlled Mechanical Attachment The power ECBs are intended to be attached to their mounting surface with the metal flange that forms the bottom of the triac assembly The m...

Страница 18: ...bove the power board The actual triac case temperature at full load and maximum rated ambient temperature must be verified during the design in engineering phase to ensure that it does not exceed 85 C Case temperature of the triac is measured at the exposed portion of the mounting flange immediately adjacent to the mounting screw s head See the section on load considerations starting on page 12 fo...

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