Watlow VPAC Solid State Relay Power Control User Manual

VPAC

User's Manual

Solid State Relay

Power Control

Watlow Controls

1241 Bundy Boulevard, P.O. Box 5580, Winona, MInnesota USA 55987-5580

Phone: [phone], Fax: [phone] http://www.watlow.com

0600-0028-0000 Rev B

December, 1999, North American English

Supersedes:
WVPC-XUMN Rev A00

$5.00

Made in the U.S.A.

Printed on Recycled Paper

General Description

The VPAC Series Power Controls are a family of Solid State Relay
(SSR) controls for electric heating applications. The VPAC
provides output power proportional to the input command signal

Starting Out

from a temperature control. The single phase VPAC-01 can be
ordered in either ON/OFF (solid state contactor), burst fired or
phase angle firing mode. The three phase, two leg VPAC-32 is for
solid state contactor or burst fired (loop powered) operation only.

Model Number (1821)

VPAC Series V _ _ - _ _ _ - _ _ - _ _ _

Phase

01 = Single Phase
32 = Three Phase, Two Leg,

Burst fired (BL) or SS
contactor (CA, CD) only.

Voltage

12 = 120V~(ac)
24 = 240V~(ac)
27 = 277V~(ac)
38 = 380V~(ac)
41 = 415V~(ac)
48 = 480V~(ac) (in 25A and up only)

Current

10 = 10Amps
25 = 25Amps
40 = 40Amps
50 = 50Amps
75 = 75Amps

Control Mode

BL0 = Burst fired, variable time base, loop powered,

4-20mA input-08-5399

*BT1 = Zero cross, variable time base, transformer powered.

Single phase only, 4-20mA input calibration.

*BT2 = Zero cross, variable time base, transformer powered.

Single phase only. 0 to 5VDC input calibration.
Can be used for manual potentiometer input.

*AT1 = Phase angle, transformer powered. Single phase only.

4-20mA input calibration.

*AT2 = Phase angle, transformer powered. Single phase only.

0 to 5VDC input calibration. Can be used for manual

potentiometer input.
CA0 = Contactor, AC Input
CD0 = Contactor, DC Input

*Transformer included for AT+ and BT.

Accessory

08-5362 = Manual Control Kit, 1K Potentiometer
(08-5362 for use with AT+ and BT Cards only)

Semiconductor Fuses for VPAC Through 75 Amps

Amp Voltage Bussmann Fuse Fuse Holder

VPAC SCRs and SSRs
10 amp 12 600 FWC12A10F 17-8012 17-5110
25 amp 32 600 FWC32A10F 17-8032 17-5110
40 amp 50 700 FWP50A14F 17-8050 17-5114
50 amp 63 700 FWP63A22F 17-8063 17-5122
75 amp 100 500 FWP100A22F 17-8100 17-5122

Rating Rating P/N P/N P/N

Watlow Watlow

Warranty

The VPAC is warranted to be free of defects in material and workmanship
for 36 months after delivery to the first purchaser for use, providing that the
units have not been misapplied. Since Watlow has no control over their
use, and sometimes misuse, we cannot guarantee against failure.
Watlow's obligations hereunder, at Watlow's option, are limited to
replacement, repair or refund of purchase price, and parts which upon
examination prove to be defective within the warranty period specified.
This warranty does not apply to damage resulting from transportation,
alteration, misuse, abuse, or improper fusing.

Watlow VPAC User's Manual 2

Specifications (1822)

Solid State Relay Power Control with Heat Sink

• Solid state contactor, AC input (CA)

• Solid state contactor, DC input (CD)

Optional Loop-Powered Control Card

• Burst firing (zero cross) control, 4-20mA (BL)

Optional Transformer-Powered Control Card

• Burst firing (zero cross) control, Process Input, 1Ø only (BT)

• Phase angle control, Process input, 1Ø only (AT+)

• SDA Shorted SSR Alarm (for Zero cross only)

Line Voltage (50/60Hz)

• 120V~(ac) operation

• 208/240V~(ac) operation

• 277V~(ac) operation

• 380V~(ac) operation

• 415V~(ac) operation

• 480V~(ac) operation

Solid State Relay Control

• Single phase, single SSR

• Three phase, two leg control for three wire (non-grounded load),

dual SSR.

• Resistive load only

Inputs

• Solid state contactor, AC input (CA)

ON, 90 to 240V~(ac); OFF, 0 to 10V~(ac)

• Solid state contactor, DC input (CD)

ON, 3 to 32VDC; OFF, 0VDC

• Burst firing (zero cross) control card (BL)

Input 4 to 20mA only
Bias and Gain adjustable
Input impedance 500 minimum

• Burst firing (zero cross) control card (BT), 1Ø only

Input factory adjusted for 4-20mA
Bias and Gain adjustable, 0 to 12VDC/0 to 25mA
Input impedance 300 (clip R-22 for 5K , voltage input)

• Phase angle control card (AT+), 1Ø only

Input factory adjusted for 4-20mA
Bias and Gain adjustable, 0 to 12VDC/0 to 25mA
Input impedance 300 (clip R-2 for 5K , voltage input)
Soft start 10 seconds (approx.)

• 120/240V~(ac) or 480V~(ac) to 24V~(ac) power transformer
included, model dependent for AT+ and BT options.

Outputs

• 120V~(ac) through 480V~(ac)

• 10-75A

Operating Ambient

• Temperature - 0 to 50°C

• RH - 0 to 90%, non-condensing

Specification subject to change without notice.

Returns

1. Call Customer Service, 507-454-5300, for a Return Material

Authorization (RMA) number before returning any item for repair. We
need:

• Ship to address • Bill to address • Contact name

• Phone number • Ship via • Your P.O. #

• Symptoms and/or special instructions

• Name & phone of person returning the material.

2. Prior approval and an RMA number, from the Customer Service

Department, is needed when returning any unused product for credit.
Make sure the RMA number is on the outside of the carton, and on all
paperwork returned. Ship Freight Prepaid.

3. In cases of manufacturing defect, we will enter a repair order,

replacement order, or issue credit for material. A 25% restocking
charge is applied for all returned stock controls and accessories.

4. If the unit is unrepairable, it will be returned to you with a letter of

explanation. Repair costs will not exceed 50% of the original cost.

VPAC Dimensions and Mounting

C

A

B

E

UP

WD

NOTE: *The 50Amp Single Phase width mounting dimension
includes four mounting clips (#56-0308) instead of the 1/2 round
cutouts.

Starting Out

çç

çWARNING:

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VPAC mounting and
spacing must conform to
local, state and national
safety codes. Failure to

H

conform to codes could
result in death or per­sonal injury, or damage
to equipment.

çç

çCAUTION:

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Mount units with heat
sink fins oriented
vertically. Failure to do
so could result in unit
failure and damage to
the process.

∫∫

∫

∫∫

UP

NOTE: 3-Phase, 2-Leg 10-40A use 2 heat sinks for overall
dimensions.

NOTE: Mounting dimensions show maximum possible height and
depth with terminal-mounted control card attached. Unit height and
depth varies with control card configuration.

Maximum Overall Dimensions Mounting Dimensions

V01 10-40A

Amps Height (H) Width (W) Depth (D) A B C E Fan Cooled

10 5.60" 4.50" 1.50" 3.00" 0.50" 0.15" 4.20" No

25 5.50" 4.75" 3.60" 2.00" 0.50" 0.15" 4.45" No

40 6.30" 4.75" 3.60" 4.50" 0.50" 0.15" 4.45" No

V32 10-40A

Amps Height (H) Width (W) Depth (D) A B C E Fan Cooled

10 5.60" 9.00" 1.50" 3.00" 0.50" 0.15" 4.20" No

25 5.50" 9.50" 3.60" 2.00" 0.50" 0.15" 4.45" No

40 6.30" 9.50" 3.60" 4.50" 0.50" 0.15" 4.45" No

V01 50-75A

Amps Height (H) Width (W) Depth (D) A B C E Fan Cooled

C 50A 9.00" *6.90" 3.50" 7.00" N/A N/A 5.90" No

75A 10.50" 5.00" 5.50" 7.00" 1.00" 0.15" 4.70" Yes

V32 50-75A

Amps Height (H) Width (W) Depth (D) A B C E Fan Cooled

50A 10.50" 5.00" 5.50" 7.00" 1.00" 0.15" 4.70" Yes

75A 10.50" 5.00" 5.50" 7.00" 1.00" 0.15" 4.70" Yes

Watlow VPAC User's Manual 3