Symcom 777-TS, 777-LR-TS, 777-575-TS Catalog Page

2880 North Plaza Drive • Rapid City, SD 57702
[phone] • [phone] • FAX [phone]
www.symcominc.com • email:[e-mail]

01/05

Description

The Model 777-TS is a fully-programmable electronic overload relay. An alphanumeric LED display
provides programming and diagnostic information. 17 parameters can be programmed in the
Model 777-TS:

1) Low voltage 10) Rapid-cycle timer (RD1)

2) High voltage 11) Overload restart delay (RD2)

3) Voltage unbalance 12) Underload restart delay (RD3 - dry-well recovery timer)

4) Temp. sensor on/off 13) No. of restarts after an overload (manual or automatic)

5) CT size/loop setting 14) RS-485 address

6) Overcurrent 15) No. of restarts after an underload fault

7) Undercurrent 16) Underload trip delay

8) Current unbalance 17) Ground fault

9) Trip class (5, 10, 15, 20, 30)

Programming the Model 777-TS is an easy four step process: 1) Rotate the MODE SELECT
switch to the parameter to be programmed; 2) Press and hold the RESET/PROGRAM button;

3) Rotate the DISPLAY/PROGRAM dial to the desired setting as shown in the LED display;
and 4) Release the RESET/PROGRAM button.

An RS-485 port allows the Model 777-TS to be connected to an RM-1000 or RM-2000 remote
monitor or directly to a computer or PLC. The RM-2000/777-TS motor management system
combines unsurpassed electronic motor protection and critical, user-friendly motor monitoring.
SymCom's Solutions software (sold separately) can be used to monitor and control up to 99
Model 777-TSs from a central computer. Using Solutions software, an operator can control
motors, view the operating parameters, and record the following operating parameters:

• Line - Line Voltages (Recordable) • Restart Delay Timers

• Line Currents (Recordable) • kWh Usage (Recordable)

• Last 4 Faults (Recordable) • Power Factor (Recordable)

Model 777-TS
Model 777-LR-TS
Model 777-575-TS

Overload Relays

•

Engineered

Protection

Recordable voltage, current,
last 4 faults, high temperature
detection with Subtrol®-equipped
pumps, kWh usage, and
power factor are available when
using communications package.

Digital programming provides
precise customization.

Seventeen setpoints can be
programmed for maximum
protection.

Last fault memory provides
instant troubleshooting
diagnostics.

The 777-TS is UL and cUL
listed as an overload relay.

RS-485 port can be used to
communicate with systems
using DeviceNet or Modbus
protocol.

Features

Applications

The Model 777-TS can be used on any 3-phase motor drawing from 2-800 Amps.
Applications include conveyor systems, HVAC equipment, pumps, saws, grinders and other
3-phase electric motors. In addition, the 777-TS, when used with a *Subtrol®-equipped
submersible motor can detect high motor temperatures.

Protects 3-Phase
Motors from:

• High temperature

• Overload

• Underload

• Jams

• Undervoltage

• Overvoltage

• Single phasing

• Unbalance (voltage & current)

• Ground fault (Class II)

• Rapid cycling

• Phase reversal

Additional Features

• Fully programmable

• UL and cUL listed

• CE compliant

• CSA approved

• Automatic or manual reset

• Tamper guard

• RS-485 communications port

• Surface or DIN rail mountable

• Diagnostic display

• Last fault memory

• 5-year warranty

• Made in USA

New Features

• Network programmable

• Ability to clear last fault

NEW!

*Subtrol is a registered trademark of Franklin Electric Co., Inc.

2880 North Plaza Drive • Rapid City, SD 57702
[phone] • [phone] • FAX [phone]
www.symcominc.com • email:[e-mail]

01/05

777-TS • 777-LR-TS • 777-575-TS

Overload Relays

ABC

CONTACTOR

H1

X1

H1

X1

H1

X1

12 - 16 AWG

Stranded Wire

3 0

MOTOR

CURRENT TRANSFORMER WIRING DIAGRAM FOR MODEL 777-TS (80-800 AMPS)

SYMCOM RECOMMENDS USING CTs WITH
TERMINALS TO SIMPLIFY INSTALLATION.

Note: All CTs must face the same direction and all CT
secondaries must be wired identically, i.e. all X1 terminals
enter the main (round) window and return to H1 terminals
after exiting the loop conductor window (rectangle).

Every CT secondary must make five passes through the
correspondin

g

main conductor window.

DISPLAY / PROGRAM

L
3

­L

1

L3-L1

L

B

E

+

O

V

AVG

A
VG

T

L

1

-L

2

L1-L2

L
2

­L
3

L2-L3

C

N

T

C

E

A

A

G

A
V

G

A
VG

R

R

U

MODE SELECT

L1 L2

L3

NO C NC

OVERLOAD RELAY

DISPLAY MESSAGE

RESET/

PROGRAM

800-843-8848SYMCOM, INC. RAPID CITY, SD

Wiring configuration based on motor amps. Overload Trip Classes

777-TS

External CTs
required. See
wiring diagram
for external
CTs

777-LR-TS

Model

1 - 2
2 - 9

Full Load

Amps

# of

Loops

1
0

# of Conductors

through A, B and C

2
1

MULT to Program

(CT Ratio)

2
1

8 - 12
12 - 25
25 - 90

80 - 110
110 - 160
160 - 220
220 - 320
320 - 420
400 - 520
480 - 600
560 - 800

2
1
0

4
4
4
4
4
4
4
4

3
2
1

5
5
5
5
5
5
5
5

3
2
1

100 (100:5)
150 (150:5)
200 (200:5)
300 (300:5)
400 (400:5)
500 (500:5)
600 (600:5)
800 (800:5)

10000

1000

100

10

0 300 400 500

% of OC Setting

Trip Time (Seconds)

600 700 800 900 1000

Class 10

Class 30
Class 20

Class 15

Class 5

200100

1

Wiring Diagrams

•

Charts

Note: High temp. signal may be attenuated when external CTs are used.

777-TS Manual Remote Reset Kit

The manual remote reset allows the 777-TS line of
MotorSaver®and PumpSaver®products to be
manually reset without opening the panel door.
Simply connect the 9-pin adapter to the
777-TS communication port and mount the
reset switch in a convenient location.

RM-1000

The RM-1000 is a local display/controller with RS-485
Modbus network capabilities. Its modular design allows
for flexible, inexpensive installation yet provides robust
motor management. Plant personnel safety is also
enhanced by allowing system troubleshooting and
control without opening the starter box.

2880 North Plaza Drive • Rapid City, SD 57702
[phone] • [phone] • FAX [phone]
www.symcominc.com • email:[e-mail]

01/05

Dimensions for All 777-TS Units

777-TS • 777-LR-TS • 777-575-TS

Overload Relays

RS485MS-2W

The optional RS485MS-2W communications module is

required if Model 777-TS-type products are used on a

Modbus network or with RM-1000 or RM-2000

remote displays. The communications module

provides RS-485 bus drive capabilities and optical

isolation from the overload electronics and powerline.

Accessories

•

Dimensions

RM-2000

The RM-2000 motor monitoring device,used in conjunction

with SymCom’s Model 777-TS, provides a complete

motor management system. This system provides full

electronic motor protection, historical data and critical,

user-friendly, motor-monitoring information. The RM-2000

also features a real-time clock, 2x20 backlit LCD, one

upstream RS-485 Modbus communication port and is rated

NEMA-3R when mounted on a panel door.

COM-DN

The optional COM-DN DeviceNet Communications
Module allows the Model 777-TS-type products to be
easily used on a DeviceNet fieldbus.The COM-DN meets
ODVA requirements for a slave only overload-type device.
The COM-DN supports explicit and polled messaging as
well as automatic node recovery. The EDS file allows easy
setup with third party configuration tools.

NOTES: SymCom's 777-TS & 777-LR-TS can be preprogrammed prior to installation by applying 120 VAC between
the L1 and L2 terminals.
* 575 volt Model (MS 777-575-TS)
** If J prefix is displayed in trip class setting, jam protection is enabled.
*** If "oc" is disabled in the #RF setting, the overcurrent will be included as a normal fault and the relay will automatically

restart after RD2 expires,otherwise, manual reset is required after an overcurrent fault.

Specifications
Model 777-TS
Model 777-LR-TS
Model 777-575-TS

01/05

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Input Voltage 200-480VAC, 3Ø(Standard)

500-600VAC (Model 777-575-TS)
Frequency 50 or 60Hz
Motor Full Load Amp Range

777-TS, 777-575-TS 777-LR-TS, 777-575-LR-TS

2-25 Amps, 3Ø (Loops Required) 1-4.5 Amps, 3Ø(Loops Required)
25-90 Amps, 3Ø(Direct) 2-9 Amps, 3Ø(Direct)

80-800 Amps, 3Ø(External CTs)
Short Circuit Rating 100kA
Power Consumption 10W (Maximum)
Output Contact Rating SPDT (Form C) Pilot duty rating: 480VA @ 240VAC

General purpose: 10A @ 240VAC

Expected Life

Mechanical

1 x 106 operations

Electrical

1 x 105 operations at rated load

Accuracy at 25° C (77° F)

Voltage ±1%
Current ±3%(<100 Amps Direct)
GF Current ±15%
Timing 5% ± 1 second

Repeatability

Voltage ±0.5% of nominal voltage
Current ±1% (<100 amps direct)

Trip Times (Those not shown have user selectable trip times.)

Ground Fault Trip Time Trip time

101%-200% of Setpoint 8 seconds ±1 second

201%-300% of Setpoint 4 seconds ±1 second

301%-400% of Setpoint 3 seconds ±1 second

401% or Greater 2 seconds ±1 second

Current Unbalance Trip Times

% Over Setpoint Trip time % Over Setpoint Trip time

1% 30 seconds 5% 6 seconds
2% 15 seconds 6% 5 seconds
3% 10 seconds 10% 3 seconds
4% 7.5 seconds 15% 2 seconds

Safety Marks

UL UL508, UL1053
CE IEC 60947-1, IEC 60947-5-1
CSA

Standards Passed

Electrostatic Discharge (ESD) IEC 1000-4-2, Level 3, 6kv contact, 8kv air
Radio Frequency Immunity (RFI), Conducted IEC 1000-4-6, Level 3 10V/m
Radio Frequency Immunity (RFI), Radiated IEC 1000-4-3, Level 3 10V/m
Fast Transient Burst IEC 1000-4-4, Level 3, 3.5kv input power
Surge

IEC 1000-4-5

Level 3, 2kv line-to-line; Level 4, 4kv line-to-ground

ANSI/IEEE C62.41 Surge and Ring Wave Compliance to a level of 6kv line-to-line
Hi-potential Test Meets UL508 (2 x rated V +1000V for 1 minute)
Vibration IEC 68-2-6, 10-55Hz, 1mm peak-to-peak, 2 hours, 3 axis
Shock IEC 68-2-27, 30g, 3 axis, 11ms duration, half-sine pulse

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Dimensions 3.1"H x 5.1"D x 3.9"W
Termnal Torque 7 inch•lb
Enclosure Material Polycarbonate
Weight 1.2 lbs
Maximum Conductor Size Through 777 0.65" with insulation

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Temperature Range Ambient Operating: -20° - 70° C (-4° - 158° F)

Ambient Storage: -40° - 80° C (-40° - 176° F)
Pollution Degree 3
Class of Protection IP20, NEMA 1
Relative Humidity 10-95%, non-condensing per IEC 68-2-3

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LV- Low Voltage Threshold 170V (450V*) - HV Setting
HV- High Voltage Threshold LV Setting - 528V (660V*)
VUB- Voltage Unbalance Threshold 2 - 15% or 999
TS- Temperature Sensor ON/OFF
MULT- # of Conductors or CT Ratio (XXX:5) 1-10 Conductors or 100-800 Ratio
OC- Overcurrent Threshold (20 to 100A) ÷ MULT or 80 to 120% of CT Primary; LR, (2 to 10A) ÷ MULT
UC- Undercurrent Threshold (0, 10 to 98A) ÷ MULT or 40 to 100% of CT Primary; LR. (0, 1 to 9.8A) ÷ MULT
CUB- Current Unbalance Threshold 2 - 25% or 999
TC- Overcurrent Trip Class ** 5, J5, 10, J10, 15, J15, 20, J20, 30, J30
RD1- Rapid Cycle Timer 0, 2 - 500 Seconds
RD2- Restart Delay After All Faults Except Undercurrent 2 - 500 Minutes

(motor cool down timer)

RD3- Restart Delay After Undercurrent 2 - 500 Minutes

(dry well recovery timer)
#RU- Number of Restarts After Undercurrent 0, 1, 2, 3, 4, A(Automatic)
ADDR- RS485 Address A01- A99
#RF-Number of Restarts After All Faults Except Undercurrent*** 0, 1, oc1, 2, oc2, 3, oc3, 4, oc4, A, ocA
UCTD- Undercurrent Trip Delay 2 - 60 Seconds
GF- Ground Fault Current Threshold (3 to 20A) ÷ MULT or 10 to 30% of CT Primary or OFF; LR, (0.3 to 2.0A) ÷ MULT or OFF

SymCom warrants its microcontroller based
products against defects in material or workmanship
for a period of five (5) years from the date of
manufacture. All other products manufactured by
SymCom shall be warranted against defects in
material and workmanship for a period of two (2)
years from the date of manufacture.For complete
information on warranty, liability, terms returns,
and cancellations, please refer to the SymCom
Terms and Conditions of Sale document.