Vari-Watt Power Controller - chromalox.com · rv2 r14 c22 r3 1 r20 c6 r19 + r9 u3 r36 c12 5 62 1 j9...
Transcript of Vari-Watt Power Controller - chromalox.com · rv2 r14 c22 r3 1 r20 c6 r19 + r9 u3 r36 c12 5 62 1 j9...
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Installation and Operating Instructions
Vari-Watt Power Controller
PK5550037-75459
October 2018
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The Chromalox Vari-Watt Controller accepts an analog control signal input and produces a proportional output signal to drive Solid State Relays such as the Chromal-ox SSR series. Demand Oriented Transfer (DOT) firing for each SSR provides precise control with resolution to 3 cycles (select 50 or 60 Hz operation).
In a typical application the Vari-watt is used to convert temperature/process control signal (4-20 mA) to a Zero Crossing SSR power control.
When using multiple SSR’s the Load Management fea-ture automatically offsets the turn-on signal for each SSR output to limit inrush current.
Manual control provides open loop control of the out-put from 0 to 100% with input from a 10K Potentiom-eter.
Auto/Manual Control allows a single pole switch to select between Manual Control or Automatic Control from any of the analog signal inputs.
• Allows Automatic or Manual Control of Heater Loads Using Chromalox SSR Series Solid State Relays
• Demand Oriented Transfer (DOT) Firing for Analog Inputs
• 50 or 60 Hz (Jumper Selectable)
• Load Management Feature for Multiple SSR’s
• Analog Inputs
• 4-20 mAdc
• 0-5 Vdc
• 0-10 Vdc
• 50 or 60 Hz Operation, (Jumper Selectable)
• Open Board Design
• DIN Rail Mounting
Instrument power: • 95 to 250 Vac power, less than 15VA
Operating Environment: • 32-150°F ambient temperature • Relative humidity less than 95% non-condensing.
Analog Input types: • 4-20 mAdc into 250 Ohm • 0-5 Vdc into 10K Ohm • 0-10 Vdc into 20K Ohm • 10K potentiometer
Outputs (Up to 4 total): • SSR drive (12 Vdc at 100 mAdc (total current for
outputs))
DOT timing: • 3 cycle, 50 or 60 Hz (jumper selectable)
General
Features Specifications
Vari-Watt Power Controller
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Application Diagrams (Typical)
Single PhaseVoltage Supply
OptionalFusing
SSR #1
L1
T1
A2 (-)
A1 (+)
Variwatt (J3)
Load
8 7 6 5 4 3 2 1
Single PhaseVoltage Supply
OptionalFusing
SSR #4
L1
T1
A2 (-)
A1 (+)Load
SSR #2SSR #3(-) (+)(-) (+)
Typical 1-4 SSR’s
CustomerOutputs
Single PhaseVoltage Supply
OptionalFusing
SSR #1
L1
T1
A2 (-)
A1 (+)
Variwatt (J3)
Load
8 7 6 5 4 3 2 1 CustomerOutputs
Load
3-PhaseVoltage Supply
OptionalFusing
OptionalFusing
OptionalFusing
SSR #1
SSR #2
L1
L1
T1
T1
A2 (-)
A2 (-)
A1 (+)
A1 (+)
Variwatt (J3)8 7 6 5 4 3 2 1 Customer
Outputs
Single Phase Applicataion
3-Phase Phase Applicataion
Multiple OutputApplications Load Management
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Board Dimensions End View of DIN Rail Enclosure• 3.5x5.1” (90x130) Overall Dimensions
• Allow 2” (51) for circuit Board Height Above DIN Rail Enclosure
2.825(72)
1 2 3 4 5 6 7 8 1 2
1 2 3 4 5 6 7 8 1 2 3
J3 J2
J1 J6
U2
D1
R7
R35
R5
R1
R11
R34
C4
R18
R6
1J7
J3
U4
RV2
R14
C22
R3
1
R20
C6
R19
+
R9
U3
R36
C12
56 2
1
J9
F1
R13
C3
1
1
1
J1 1
C19
D10
R38
R39
R17
11
1
U2Q1
D1
R7
U5
C17
C9
R32
R35
R5
R1
R24 ~
~ -
+
D6
R11
C10
+
F2
Q3
R34
R28
C4
R18
D3T2
R22
R6
1J7
D7
D5
R8
1J3
RV1
U4
RV2
R14
U1
C22
1
U6
R3
1
R20
C6
R15
R19
Q4
RV3
C8
R2
C2+
C18
R10 R23
R9
U3
L1
R36
C12
C15
R25
C1
R31
56 2
1
J9
R16
C14
C20
R26
C5
C13
+
R4
F1
R13
R12
+
G
C11
Q2
1J2 R27
R21Q5
+C16
1
1
1
J1 J6
2AG
1/2A
250V
T1
1D2
D4
C19
R37D8D9D10
R38
D11
R39
R29R30
R33
14
5 8
+5V
R17
CHRO
MAL
OX IN
CVA
RIW
ATT B
OARD
J4
J5
F3J11
1J12
1J13
J101
C21
C7
RT1
5.0(127)
3.52(89.6)
1.99(46.5) 1.73
(44)
1.53(39)
Input Connections
4-20 mAdc Input
(-) (+)
4-20 mA
Variwatt (J1)
1 2 3 4 5 6 7 8
Variwatt (J1)
1 2 3 4 5 6 7 8
Manual Input10K Potentiometer
Jumper(4-5)
10KPotentiometer
Variwatt (J1)
1 2 3 4 5 6 7 8
Auto/Manual Selection
Open = AutoClosed = Manual
(-) (+)
Variwatt (J1)
1 2 3 4 5 6 7 8
0-5 Vdc, 0-10Vdc Inputs
0-5 Vdc0-10Vdc
+-
Description Number PCN
Vari-Watt Controller 0113-10237 339768
Potentionmeter (10K) 0135-27000 313947
Ordering Information
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See TableRemove J7 for 50 Hz Operation
See TableInput Jumper Selections(J10, J11, J12, J13)
(0 = Remove Jumper, X = Jumper Installed)
Input Type J10 J11 J12 J13 J7
4 - 20 mA DC X X X X N/A
0 - 5 Vdc 0 0 X 0 N/A
0 - 10 Vdc 0 0 0 0 N/A
50 Hz N/A N/A N/A N/A 0
60 Hz N/A N/A N/A N/A X
Jumper Selection Table
AC LINE
AC NEU
TRAL
EARTH G
RO
UN
D
[POT W
IPER IN
PUT]
AUTO
/ MAN
UAL CO
NTR
OL
AUTO
/ MAN
UAL CO
NTR
OL
ANALO
G IN
PUT - [O
UT TO
POT]
ANALO
G IN
PUT +
+5 VDC [O
UT TO
POT]
SSR
1 (R
TRN
)
SSR
2 (R
TRN
)
SSR
3 (R
TRN
)
SSR
4 (R
TRN
)
SSR
4 (+
12VD
C)
SSR
3 (+
12VD
C)
SSR
2 (+
12VD
C)
SSR
1 (+
12VD
C)
AUX
OU
T
AUX
OU
TCUSTOMER OUTPUTS
CUSTOMER INPUTS
AC POWER(90-250Vac, 50 or 60 Hz Selectable)
1 2 3 4 5 6 7 8 1 2
1 2 3 4 5 6 7 8 1 2 3
J3 J2
J6
Q1
D1
R7
U5
C17
C9
+
R32
R35
R5
R1
R24 ~
~ -
+D6
R11
C10
+
F2
Q3
R34
R28
C4
R18
-D3
T2
R22
R6
1J7
-
D7
D5
R8
1J3
RV1
U4
RV2
R14
U1
C22
1
U6
R3
1
R20
C6
R15
R19
Q4
C8
R2
C2+
C18
R10 R23
R9
U3
L1
R36
C12
R25
C1
R31
56 2
1
J9
R16C1
4
C20
R26
C5
C13
+
R4
F1
R13
R12
+
G
C11
C3Q2
1J2 R27
R21Q5
+C16
1
1
J1 1J6
2AG
1/2A
250V
T1
1
-
D2
-
D4
C19
R37D8D9D10
R38
R39
R29R30
R33
14
5 8
+5V
R17
CHRO
MAL
OX IN
CVA
RIW
ATT B
OARD
J4
J5
F3J11
1J12
1J13
J101
C21
C7
RT1
U2
1
RV3C15
1D11
1
J1
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Limited Warranty:Please refer to the Chromalox limited warranty applicable to this product at
http://www.chromalox.com/customer-service/policies/termsofsale.aspx.
© 2018 Chromalox, Inc. All rights reserved.
Chromalox103 Gamma Drive
Pittsburgh, PA 15238(412) 967-3800
www.chromalox.com