Watlow VPAC Solid State Relay Power Control User Manual download pdf (Page 2)

Starting Out

Watlow VPAC User's Manual 2

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

Watlow Watlow

Amp Voltage Bussmann Fuse Fuse Holder

Rating Rating P/N P/N P/N

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

General Description

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.

Returns

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.

Specifications (1822)

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

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)

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.

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Watlow VPAC Solid State Relay Power Control User Manual Page 2

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