RSMR(300905)1.eng

Specifications are subject to change (22.05.2006)

M-line Motor Controller
Rotary ramp selector
Rated operational voltage
Rated operational current

Ordering Key

Motor Controllers
AC Semiconductor Motor Controller
Type RSMR

· Soft starting and stopping of 3-phase

squirrel cage motors

· 2 Phase controlled (without bypass relay)
· Reliable microprocessor control
· 10 pre-programmed ramping profiles
· Rated operational voltage up to 480VAC, 50/60 Hz
· Rated operational current up to 90A AC-53a
· LED status indicator
· Kickstart option for high torque loads
· Auxiliary relays for top of ramp and run
· Phase loss protection at starting
· Over-current "shear-pin" protection

Product Description

The RSMR is a microproces-
sor based soft starter for 3-
phase induction motors. A
rotary knob enables selection
from 10 pre-programmed
ramping profiles. The choice is
suggested by a list of popular

applications that corresponds
to the positions of the selec-
tor. No external supply is nec-
essary as starting and stop-
ping are controlled by closing
and opening a contact.

RSM R 40 90

Rated operational

Rated operational current I

voltage U

72A AC-53a

90A AC-53a

340-506 VAC, 50/60 Hz

RSMR4072

RSMR4090

Selection Guide

Load Ratings

RSMR4072

RSMR4090

IEC rated operational current Ie (AC-53a) @ 40/50/60ºC

72/57/43 A

90/72/54 A

Assigned motor rating @ 40ºC

400V

37kW/50HP

45kW/60HP

460V

40kW/54HP

45kW/60HP

Overload cycle to IEC/EN 60 947-4-2

72A: AC-53a: 5-4: 99-10

90A: AC-53a: 5-4: 99-10

Power dissipation at rated operational current

119W

144W

Number of starts per hour @ 40ºC

10 (starting interval 6 minutes)

Start duty

5 x FLC for 4 seconds
4 x FLC for 6 seconds

3 x FLC for 12 seconds
2 x FLC for 26 seconds

Shear-pin cut-off level

currents in excess of 5 x FLC for 500ms

Supply Specification

Rated operational voltage Ue through
L1, L2, L3

340-506VAC rms

Rated AC frequency

50/60 Hz ±2Hz

Input Specifications

Control supply

Internal

Control contacts S0, S1

close to start,
open to stop

Soft Stop Control

no more than 3m
from enclosure

Specifications are subject to change (22.05.2006)

* Above 40°C derate linearly by 1% of unit FLC per 100m to a max.

of 40% at 60°C.

RSMR

Standards

Markings

Norms

IEC/EN 60947-4-2

Thermal Specifications

Operating temperature

0º to +

40ºC

(32º to +140ºF)

Storage temperature

-25º to +60ºC
(-13º to +140ºF)

General Specifications

Degree of protection

IP20 (IEC 60529)

Relative humidity max.

85% non-condensing,
not exceeding 50% @ 40ºC

Rated insulation voltage Ui

460V

Pollution degree

Ramp up time

1 to 15s

Ramp down time

0 to 15s

Application selection

10 position rotary switch

Status indicator LED

red continuous: active,
red intermittent: fault

Auxiliary relay contacts

Run 13,14

Normally open

Top

of ramp 23,24

Normally open

Auxiliary relay contact capacity

5A, 250V AC1

Installation altitude

Above 1000m derate
linearly by 1% of unit
FLC per 100m to a
maximum altitude of
2000m

Form Designation

Form 1

Rated Short Circuit Current (Iq)

20kA

Short Circuit Co-ordination

Type 1

Conductor Data

Power conductors

Size

16mm

to 35mm

(AWG 6 to 2)

Tightening torque

2.5Nm

Screw driver

Flat, size 7

Auxiliary conductors

Size

0.5mm

to 2.5mm

(AWG 20 to 14)

Tightening torque

0.5Nm

Screw driver

Flat, size 3

Ground/earth conductor

1.0mm

5mm earth stud

EMC Emission and Immunity Levels

ESD immunity

IEC 61000-4-2
6kVcontact or 8kV
air discharge

R F immunity

IEC 61000-4-6
140dBuV over 0.15-80MHz

R F immunity

IEC 61000-4-3
10V/m over 80/100MHz

Fast transient immunity

IEC 61000-4-4
2kV/5kHz

Surge immunity

IEC 61000-4-5
2kV line to gound
1kV line to line

Conducted RF emissions

EN55011 Class A

Radiated RF emissions

EN55011 Class A

Recommended Protection

RSMR..72

RSMR..90

Semiconductor fuse

Ferraz Shawmut, type PSC

Semiconductor fuse

Ferraz Shawmut, type PSC

250 A, body size 31,

Art.No. 6,6URD31D11A0250

or 6,6URD31EF0250

Bussmann, type Zilox, 250 A,

body size 1, Art.No. 170M3116

Specifications are subject to change (22.05.2006)

RSMR

stop will be performed
according to the setting of
the rotary setup knob.

Soft-start and stop with
push-to-make and push-
to-break switches
(Fig. 4)

Pushing P1 soft-starts the
RSMR. Pushing P0 soft-
stops the RSMR. K is the
auxiliary contact of an exter-
nal mains contactor.

Control Diagrams and Applications

Fusing Considerations
(Fig.1)
This motor controller uses
semiconductors during run-
ning operation. Therefore the
semiconductors can be
damaged by short-circuit
currents. The best protec-
tion is with semiconductor
fuses.

Changing from Direct ON
Line start to soft start
(Line controlled soft-start)
(Fig. 2)
Changing a Direct On Line
start into a soft start is very

simple with the RSMR soft
starter:
1) Cut the cable to the motor

and insert the RSMR soft
starter.

2) Short the control input S0,

S1 with the link provided

3) Power up again - adjust

the start torque so the
motor starts turning
immediately after power is
applied.

When C1 is operated, the
motor controller will perform
soft-start of the motor. When
C1 is switched off, the motor
will stop (no soft-stop), the

motor controller will reset
and a new soft-start can be
performed.
Please note that the con-
troller does not insulate the
motor from the mains. A
mains contactor C1 is there-
fore needed.

Soft-start and stop with 2
position switch
(Fig. 3)
When P1 is closed, soft-start
of the motor will be per-
formed according to the set-
ting of the rotary setup knob.
When P1 is opened, soft-

Fig. 2 Starting via mains

contactor

U/T1

V/T2 W/T3

Fig. 3 Control by

external switch

U/T1

V/T2 W/T3

U/T1

V/T2 W/T3

P1(ON)

P0(OFF)

U/T1

V/T2 W/T3

Fig.4 Control via auxiliary

contact

RSMR

U/T1

V/T2 W/T3

Fuse

Contactor

Overload

Fig. 1 Main circuit with fuse

Dimensions

188

180

240

225

100

Terminal Diagram

L1 L2 L3

T1 T2 T3

All dimensions in mm

Specifications are subject to change (22.05.2006)

RSMR

Setup

Selection

Ramp-up

Initial

Ramp-down

position

switch

time s

voltage

time s

Standard

30%

High Torque

60%

Pump

40%

Pump kick-start

50%

Light conveyor

40%

Heavy conveyor

60%

Low inertia fan

30%

High inertia fan

50%

Recip. compressor

50%

Screw compressor

40%

Operation Diagram

Multi ramp starting strategies suitable for all applications are designed into the RSMR

100%

50%

25%

0.5s

Ramp-up time: time from zero load voltage to full load voltage.

Ramp-down time: time from full load voltage to zero load voltage.

Initial voltage: voltage at the start of the ramp-up function.

Kickstart: constant initial voltage delay before ramp-up.

Time

Motor voltage

Excluding setup position [3]

Setup position [3]

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