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SSR with Failure Detection Function
G3PC
Detects failures in SSRs used for heater temperature control and simultaneously outputs alarm signals. This product supports the safe design of heater control systems, and contributes to maintenance improvements by the user.
* Main detection items: SSR short-circuits and SSR open-circuits * Alarm output possible to NPN/PNP-input devices. * The failure-detection function is built-in and power is supplied from the main circuit power supply making wiring simple. * Slim design (width: 22.5 mm) incorporating radiator. * In addition to screw mounting, DIN track mounting is also possible. * Conforms to international standards (IEC, UL, and CSA).
Ordering Information
I List of Models
Insulation method Phototriac coupler Yes Zero-cross function Indicators Yes (See page 75) Applicable output load 20 A, 100 to 240 VAC (resistive load: AC, Class1) Model number G3PC-220B-VD
I Accessories (Order Separately)
Name Mounting Track Dimensions 50 cm (l) x 7.3 mm (t) 1 m (l) x 7.3 mm (t) 1 m (l) x 16 mm (t) Model number PFP-50N PFP-100N PFP-100N2
Specifications
Detection Power Supply
Rated power supply voltage Operating voltage range Current consumption 100 to 240 VAC (50/60 Hz) 75 to 264 VAC (50/60 Hz) 15 mA AC max. (at 200 VAC)
Main Circuit
Rated load voltage Operating voltage range Rated carry current Minimum load current Inrush current resistance (peak value) Permissible (I t) Applicable load (with Class-1 AC resistive load)
2
100 to 240 VAC (50/60 Hz) 75 to 264 VDC (50/60 Hz) 20 A (Ta = 40) 0.1 A 220 A (60 Hz, 1 cycle) 260 A2S 4 kW (at 200 VAC)
Operating Circuit
Input method Rated input voltage Operating input voltage range Must-operate voltage Reset voltage Input current Voltage input 12 to 24 VDC 9.6 to 30 VDC 9.6 VDC max. 1 VDC min. 7 mA DC max. (at rated input voltage)
Alarm Output
Output OFF collector voltage Maximum carry current Output form 30 VDC max. 0.1 A Independent NPN open collector
SSR with Failure Detection Function
G3PC
J-71
SSR
I Ratings (At an Ambient Temperature of 25C)
I Characteristics
Operate time Release time Main circuit Alarm output Output ON voltage drop OFF leakage current Output ON voltage drop OFF leakage current Insulation resistance Dielectric strength Vibration resistance Shock resistance Ambient temperature Ambient operating humidity Weight Approved standards EMC 1/2 of load power source cycle + 1 ms max. 1/2 of load power source cycle + 1 ms max. 1.6 V rms max. 10 mA max. (at 200 VAC) 1.5 V max. 0.1 mA max. 100 M min. (at 500 VDC) 2,500 VAC, 50/60 Hz for 1 min Destruction: 10 to 55 to10 Hz, 0.35-mm single amplitude Destruction: 294 m/s2 Operating: -20 to 60C (with no icing or condensation) Storage: -30 to 70C (with no icing or condensation) 45% to 85% Approx. 300 g UL508, CSA22.2 No. 14, EN60947-4-3 (IEC947-4-3) approved by VDE Emission Immunity Immunity Immunity Immunity Immunity Immunity ESD Electromagnetic EFT Surge transient RF disturbance Dips EN55011 Group 1 Class B IEC947-4-3, EN61000-4-2 4 kV contact discharge 8 kV air discharge IEC947-4-3, EN61000-4-3 10 V/m (80 MHz to 1 GHz) IEC947-4-3, EN61000-4-4 2 kV AC power-signal line IEC947-4-3, EN61000-4-5 2 kV IEC947-4-3, EN61000-4-6 10 V (0.15 to 80 MHz) IEC947-4-3, EN61000-4-11
Engineering Data
Input Voltage vs. Input Current Input Voltage vs. Input Impedance
Input impedance (k) Input current (mA) 10 Ta = +25C
Load Current vs. Ambient Temperature
Inrush Current Resistivity (Non-repetitive Input)
The figure will be less than 1/2 for repetitive input.
8
Load current (A)
25
Inrush current (A. Peak)
250
20
200
Input impedance 6 15
150
4 Input current 2
10
100
5
50
0
10
20
30 40 Input voltage (V)
-20
0
0
20
40
60 80 100 Ambient temperature (C)
0 10
30 50
100
300 500 1,000 3,000 5,000 Energized time (ms)
J-72
SSR with Failure Detection Function G3PC
Operation
I Failure Detection Function
Conditions for SSR Failure Detection
Failure mode (See note 1.) SSR short-circuit SSR open-circuit Operating input (between terminals A1 and A2) OFF ON Detection time Alarm display (See note 3.) 0.5 s max. (See note 2.) Red SSR half-wave short-circuit OFF SSR half-wave open-circuit ON Note: 1. The contents of each of the above failure modes is as follows: SSR short-circuit: SSR output circuit remains in the ON state. SSR half-wave short-circuit: SSR output circuit remains in the ON state in one direction. SSR open-circuit: SSR output circuit remains in the OFF state. SSR half-wave open-circuit: SSR output circuit remains in the OFF state in one direction. In addition to the failure modes listed above, detection of circuit disconnections for the load circuit is also possible. (As a rough guide, circuit disconnection will be detected if the load impedance is greater than or equal to 1 M.) 2. The same power supply is used for both the detection and for the output circuit and so detection is not performed during power interruptions. 3. If power supply (terminal 3) is in the open state, the SSR will still turn ON and OFF in the same way but the failure detection function and alarm display will not operate properly. Alarm display (between terminals X1 and X2) (See note 3.) Open collector transistor output
Connection Diagrams (Main Circuit)
The following diagrams show the applicable load connection configurations for SSR failure detection.
Single Phase
3-phase Star Connection
3-phase Delta Connection (3-phase, 2-wire Switching)
3-phase V Connection
G3PC
G3PC
G3PC
Heater
G3PC
G3PC
G3PC
G3PC
G3PC
er
at
er
at
at
er
He
He
He
Note: With 3-phase connection, so that the power supply voltage is applied between the G3PC's terminals 1/L1 and 3, connect the desired phase to terminal 3.
Timing Chart
SSR failure detection Main circuit power supply (load side) Operating input (between terminals A1 and A2) Input LED (yellow) Load current SSR ON normally SSR OFF normally SSR short-circuit Reset (See note.) SSR open-circuit Reset (See note.)
Circuit disconnection detection on the load side
Load circuit disconnection
Reset (See note.)
RDY/ALM LED (Green: ; Red: Alarm output (between terminals X1 and X2)
)
Note: After failure detection, if the detection conditions differ to the conditions given under Conditions for SSR Failure Detection, alarm output is reset.
SSR with Failure Detection Function
G3PC
J-73
SSR
Heater
He
He at er
He
at er
at er
Heater
Dimensions
G3PC-220B-VD
1 130 max. 114.4 Terminal cover 22.5 max. Tow, 4.6 dia. Three, 4.5 dia. or M4
Mounting Holes
13.5 68 100 max. 900.2 80 900.3
8.5x3
4.6x5.6 elliptic hole
130.3
84.2
Note The above diagram is for when the terminal cover is open.
Note The above diagram is for when the terminal cover is closed.
Accessories (Order Separately)
Mounting Tracks
PFP-100N, PFP-50N PFP-100N2
7.30.15 4.5 350.3 25 25 15 25 10 25 1,000 (500) 10 1,000 (500) (see note) (see note) 15 (5) (see note) 270.15
16 4.5 350.3 27 24 15 25 25 1,000 25 25 15 1 29.2 1.5
10
10
Note Values in parentheses indicate dimensions for the PFP-50N.
J-74
SSR with Failure Detection Function G3PC
Installation
I External Specifications
Terminal Arrangement
Terminal name Terminal number M4 Screw size
1/L1 3 RDY/ALM A1(IN+) INPUT
Appearance
Main circuit terminals 1/L1, 2/T1 (output) Detection power sup- 3 ply terminal (input) Operating circuit terminals (input) Alarm output terminals (output) A1, A2 X1, X2
M3.5
A2(IN-) X1(ALM+) X2(ALM-) 2/T1
Indicators
Name Status indicators Symbol RDY ALM Color Green Red Meaning SSR normal SSR failure detection and circuit disconnection detection Operating
Input indicator
INPUT
Yellow
Note: The same indicator is used as both the power supply indicator and the alarm indicator.
I Connection Example
(See note 1.)
Display Labels
L1
1
AC Voltage output for Temperature Controller, sequencer 12 to 24 VDC
3
A1
IN
A2 X1
Input for Temperature Controller, sequencer 30 VDC min. (See note 2.)
Heater
ALM
X2
2
T1
Note: 1. If the detection power supply terminal (terminal 3) is not connected, failure detection is not performed and so be sure to connect this terminal. 2. If the load is connected to terminal 1/L1, failure detection may not operate correctly and so connect the load to terminal 2/T1. 3. With inductive loads (relay coil, etc.), connect back-current prevention diodes to both sides of the load.
SSR with Failure Detection Function
G3PC
J-75
SSR
Precautions
Refer to the Technical Information for SSRs (Cat. No. J137) for general precautions.
Wiring
* When using crimp terminals, observe the terminal clearances shown below.
I Correct Use
Before Actual Operation
1. In actual operation, the G3PC may cause accidents that were unforeseeable at the theoretical stage. Therefore it is necessary to test the G3PC under a variety of conditions that are possible. As for the characteristics of the G3PC, it is necessary to consider the differences between G3PC Units. 2. The ratings in this datasheet are for testing in a temperature range of 15 to 30C, a relative humidity range of 25% to 85%, and an atmospheric pressure range of 88 to 106 kPa. When testing operation, it is necessary to confirm correct operation not only with the actual load that will be used, but also at the same ambient conditions as for actual operation.
Main Circuit Power Supply Operating Input/Alarm Output (Terminals 1 to 3) (Terminals A1, A2, X1, and X2)
10 7.0
12.4 10
M3.5
* Be sure that all lead wires are of a thickness appropriate for the current. * The output terminals are charged, and touching them may result in electric shock, even when the G3PC is OFF. Separate the outputs from the power supply by installing a circuit-breaker at a higher level in the circuit.
Mounting Method
DIN Track Mounting
When mounting to a DIN track, mount the G3PC until it clicks into place, otherwise it become loose during use and fall. Fix both ends with end plates.
Tightening Torque
Be sure to tighten the screws to the specified torques given below. Not doing so may result in malfunction. Terminal number A1, A2, X1, X2 1/L1, 2/T1, 3 Screw terminal diameter M3.5 M4 Tightening torque 0.59 to 1.18 N*m 0.98 to 1.47 N*m
Panel Mounting
When mounting directly to a panel, observe the following conditions: Screw diameter: M4 Tightening torque: 0.98 to 1.47 N*m
Vertical Mounting
Horizontal Mounting
Vertical direction
Panel
Panel
Note: Use the G3PC at a load current of 50% of the rated load current when it is mounted horizontally.
Side-by-side Mounting
Wiring duct
80 mm min.
5 mm
Wiring duct
80 mm min.
Note: Use the G3PC at a load current of 80% of the rated load current when it is mounted side-by-side.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. J127-E1-02 In the interest of product improvement, specifications are subject to change without notice.
J-76
SSR with Failure Detection Function G3PC

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