Mitsubishi Electric 800 Plus Series Stücklistenhandbuch

INVERTER

A800 Plus

FR-A800-LC (LIQUID COOLED TYPE)

Safety Stop Function Instruction Manual

CONTENTS

1. GENERAL DESCRIPTION ............................................ 2

2. INSTALLATION AND WIRING...................................... 4

3. EXAMPLE OF SAFETY SYSTEM CONFIGURATION .... 8

4. TEST AND CHECKING FAILURE ............................... 13

5. SAFETY PARAMETERS OF FR-A800-LC .................... 14

Compliance with the EU Machinery Directive – Functional Safety

To achieve functional safety, any work on the product such as wiring and inspections must be performed

according to the Instruction Manual by technicians who took a safety standard training.

Warning

Any misuse of safety function could lead to personal injury or death, property damage, or economic

loss. To ensure that the system complies fully with requirement of safety, make a system-level risk

assessment. Mitsubishi Electric Corporation. cannot assume responsibility for any system to

comply with safety directive.

To avoid an electric shock hazard, verify that the voltage on the bus capacitors has discharged

before performing any work on the inverter. Measure the DC bus voltage between the terminals P(+)

and N(-) or at test points (refer to your inverter’s Instruction Manual for locations and discharging

time). The voltage must be zero.

The safety stop function do not isolate electrically between the inverter and the motor. To avoid an

electric shock hazard, disconnect/isolate power to the inverter and verify to ensure that the voltage

is zero before performing any work on the motor (refer to your inverter’s Instruction Manual for

discharging time).

Caution

The information of this manual is merely a guide for proper installation.



Mitsubishi Electric Corporation. cannot assume responsibility for the compliance or the

noncompliance to any code, national, local, or otherwise for the proper installation of this equipment.

A hazard of personal injury and/or equipment damage exists if codes are ignored during installation.

2GENERAL DESCRIPTION

1GENERAL DESCRIPTION

Features

The safety stop function of the Mitsubishi Electric FR-A800-LC inverter can be used to prevent the inverter from

supplying rotational energy to motors. Dual input terminals S1 and S2 can be used to cut off the gate-drive power

to the IGBT.

Figure 1 FR-A800-LC safety stop function diagram

Standards

The safety stop function of the Mitsubishi FR-A800-LC inverter meets the following standards and categories.

• FR-A840-LC

• Safety Integrity Level (SIL) 2

ISO13849-1:2008 Category 3/PLd

IEC62061:2005 / IEC61800-5-2:2007 / IEC61508 SIL2

IEC60204-1:2010 / IEC61800-5-2:2007 Stop category 0

• FR-A870-LC

• Safety Integrity Level (SIL) 2

ISO13849-1:2008 Category 3/PLd

IEC62061:2005 / IEC61800-5-2:2007 / IEC61508 SIL2

IEC60204-1:2010 / IEC61800-5-2:2007 Stop category 0

• Safety Integrity Level (SIL) 3

ISO13849-1:2015 Category 3/PLe

IEC62061:2015 / IEC61800-5-2:2016 /IEC61508:2010 SIL3

IEC60204-1:2016 / IEC61800-5-2:2016 Stop category 0

Warning

Disconnecting the power to the gate driver by the safety stop function does not isolate electrically

between the inverter and the motor. To avoid an electric shock hazard, disconnect power to the

inverter and verify that the main circuit capacitor voltage is zero (across terminals P and N) before

performing any work on the motor (refer to your inverter’s Instruction Manual for discharging time).

R/L1

S/L2

T/L3

So (SO)

SOC

G G

ASIC

FR-A800-LC

SIC

Logic

RESET

Emergency

stop button

Safety relay module

/ Safety programmable controller

/ Safety controller

PC Gate

Driver

Gate

Driver

IGBTs

Fuse

CPU

+24V

24VDC

GENERAL DESCRIPTION 3

SafetystopfunctionwithSIL3certification

The Mitsubishi Electric FR-A870-LC inverters now comply with safety integrity level 3 (SIL 3) of the IEC EC61508:2010

functional safety standard.

• Target models

Mitsubishi Electric FR-A870-LC inverters

• Change of the compliance

The Mitsubishi Electric FR-A870-LC inverters now comply with SIL 3.

Table 1 Compliance with SIL 3

• Schedule

Check the SERIAL number indicated on the inverter rating plate or package.

For the products, this change has been made sequentially from the June 2018 production.

• Third-party certification body

Safety Integrity Level (SIL) 3:

TÜV SÜD

Safety Integrity Level (SIL) 2:

TUV Rheinland as before, or TÜV SÜD alternatively.

SafetystopfunctionwithSIL2certification

The Mitsubishi Electric FR-A840-LC inverters now comply with safety integrity level 2 (SIL 2) of the IEC EC61508

functional safety standard.

• Target models

Mitsubishi Electric FR-A840-LC inverters

• Change of the compliance

The Mitsubishi Electric FR-A840-LC inverters now comply with SIL 3.

Table 2 Compliance with SIL 2

• Schedule

Check the SERIAL number indicated on the inverter rating plate or package.

For the products, this change has been made sequentially from the June 2018 production.

• Third-party certification body

Safety Integrity Level (SIL) 2:

TUV Rheinland

Ratingplateexample

Before change After change

Safety

performance

(Standards

certified by a third-

party certification

body)

ISO13849-1:2008 Category 3/PLd

IEC62061:2005 / IEC61800-5-2:2007 /

IEC61508 SIL2

IEC60204-1:2010 / IEC61800-5-2:2007 Stop category 0

ISO13849-1:2015 Category 3/PLe

IEC62061:2015 / IEC61800-5-2:2016 /

IEC61508:2010 SIL3

IEC60204-1:2016 / IEC61800-5-2:2016 Stop category 0

Safety performance

(Standards certified by a third-party certification body)

Safety Integrity Level (SIL) 2

ISO13849-1:2008 Category 3/PLd

IEC62061:2005 / IEC61800-5-2:2007 / IEC61508 SIL2

IEC60204-1:2010 / IEC61800-5-2:2007 Stop category 0

   

Symbol Year Month Control number

SERIAL

The SERIAL consists of one symbol, two characters indicating the production

year and month, and six characters indicating the control number.

The last digit of the production year is indicated as the Year, and the Month is

indicated by 1 to 9, X (October), Y (November), or Z (December).

Warning

The misuse of safety function leads to personal injury or death, property damage, or economic loss.

To ensure that the system complies fully with requirement of safety, make a system-level risk

assessment. Mitsubishi Electric C

orporation

. cannot assume responsibility for any system to

comply with safety standards.

,1387;;;;;

02'(/

287387;;;;;

6(5,$/;;;;;;;;;

SERIAL

number

FR-A870-280K-1-LC

4INSTALLATION AND WIRING

2INSTALLATION AND WIRING

Installation

The safety stop function of the Mitsubishi Electric FR-A800-LC inverter should be used under the following

conditions and environment.

Table 3 Conditions and environment for using the safety stop function

∗1 The LD ratings can be selected only for the FR-A840-LC inverter.

∗2 The SLD ratings can be selected only for the FR-A870-LC inverter.

∗3 Condensation may occur depending on the humidity and the coolant temperature. Adjust the humidity and the coolant

temperature to prevent condensation.

∗4 Temperature applicable for a short time, e.g. in transit.

To store the inverter after the coolant has passed through the pipes, fill the pipes with coolant sufficiently enough, that it

contains antifreezing agent to prevent corrosion. Or fill the pipes with nitrogen gas after the inside of the pipes is fully dried. If

any moisture remains inside the pipes, it may react with oxygen in the air to form corrosion.

∗5 Under normal condition, keep the flow rate between 3.2 and 3.5 L/m.

∗6 Under normal condition, keep the flow rate between 6.5 and 7.0 L/m.

∗7 For the installation at an altitude above 1,000 m, derate the rated current 3% per 500 m.

Caution

The following information is merely a guide for proper installation.

Mitsubishi Electric Corporation. cannot assume responsibility for the compliance or the

noncompliance to any code, national, local, or otherwise for the proper installation of this equipment.

A hazard of personal injury and/or equipment damage exists if codes are ignored during installation.

Ensure the safety relay unit/ Safety programmable controller/ Safety controller and the FR-A800-LC

inverter are mounted closely in an enclosure meeting IP54 and all interconnection wiring is short

and protected against open and short circuit faults. Refer ISO/IEC13849-2.

Item Condition

Surrounding

airtemperature

ND/ LD∗1 -10ºC to +50ºC (non-freezing)∗3

SLD∗2 -10ºC to +40ºC (non-freezing)∗3

Storage temperature -20ºC to +65ºC∗4

Ambient humidity

With circuit board coating (conforming to IEC60721-3-3 3C2/3S2):

95% RH or less (non-condensing),

Without circuit board coating: 90% RH or less (non-condensing)

Coolant

temperature 1 to +40ºC (non-freezing)

Coolant

flow rate

FR-A840-03250(110K)-LC

FR-A840-03610(132K)-LC 3.0 to 3.7 L/min∗5

FR-A840-04320(160K) to

FR-A840-06830(280K)-LC

FR-A870-03950(280K)-LC

FR-A870-04560(355K)-LC

6.0 to 7.5 L/min∗6

Maximum permissible pressure 300 kPa

Vibration

FR-A840-03250(110K)-LC

FR-A840-03610(132K)-LC 5.9 m/s2or less at 10 to 55 Hz (directions of X, Y, Z axes)

FR-A840-04320(160K) to

FR-A840-06830(280K)-LC

FR-A870-03950(280K)-LC

FR-A870-04560(355K)-LC

2.9 m/s2or less at 10 to 55 Hz (directions of X, Y, Z axes)

Altitude Maximum 2000 m ∗7

Atmosphere Indoors (free from corrosive gas, flammable gas, oil mist, dust and

dirt)

Overvoltage category III or lower

Pollution degree II or lower

Mounting Wall mounting / vertical orientation

INSTALLATION AND WIRING 5

●Wiring

The safety related terminals are described in Table 4 and Table 5.

Table 4 Safety related terminals

∗1 Specifications for conforming to safety standards.

∗2 ON: The transistor is conducted. OFF: The transistor is not conducted.

Warning

To avoid an electric shock hazard, insert the magnetic contactor (MC) between power source and

inverter.

Open the contact of MC and keep away from the inverter for discharging time (refer to your inverter’s

Instruction Manual for information) before performing any work on the inverter. And verify that the

voltage on the bus capacitors has discharged before measuring the DC bus voltage between the

terminals P(+) and N(-) or at test points (refer to your inverter’s Instruction Manual for locations). The

voltage must be zero.

Caution

In order to meet safety standards, a safety relay module/ Safety programmable controller/ Safety

controller compliant with ISO13849-1 safety category 3 or higher shall be used in conjunction with

the FR-A800-LC inverter (refer to page 12). In addition, all other components in the safety stop loop

shall be ‘safety approved’ types.

To avoid system faults, check the safety stop function at least once per year.

To comply with SIL 3, the safety stop function must be checked at least once in three months.

Also, check the safety stop function at system installation, any software changes, and parameter

setting changes. For details, refer to Chapter 4 TEST AND CHECKING FAILURE.

Terminal

symbol Terminal name Terminal function description∗2 Rating∗1

S1 Safety stop input

(Channel 1)

For input of safety stop channel 1

Between S1 and SIC

OFF: In safety stop mode

ON: Other than the safety stop mode Input resistance: 4.7 kΩ

Input current : 4 to 6 mADC

(In case of 24 VDC input)

S2 Safety stop input

(Channel 2)

For input of safety stop channel 2

Between S2 and SIC

OFF: In safety stop mode

ON: Other than the safety stop mode

SIC Common terminal Common terminal for terminal S1 and terminal S2

So (SO) Open collector output

common

For output for failure detection and alarm

(Open collector output)

Between So (SO) and SOC

OFF: Failure or alarm detected

ON: No failure detected

Note: Terminal So (SO) cannot be used for safety

signals in a safety system. Use terminal So

(SO) to output a fault and to prevent

restarting of the inverter.

Load: 24 VDC / 0.1 A max.

Voltage drop: 3.4 V max.

(In case of ‘ON’ state)

SOC Safety monitor output

terminal common Common terminal for terminal So (SO)

6INSTALLATION AND WIRING

Table 5 Truth table of safety related signals

∗1 ON: The transistor is conducted. OFF: The transistor is not conducted.

∗2 When not using the safety stop function, short across terminals S1 and PC, S2 and PC, and SIC and SD to use the inverter.

(In the initial status, terminals S1 and PC, S2 and PC, and SIC and SD are respectively shorted with shorting wires.)

∗3 If any of the faults shown in the following table occurs, terminal So (SO) and the SAFE signal turn OFF.

∗4 When the internal safety circuit is operated normally, the terminal So (SO) and the SAFE signal remain ON until E.SAF is

displayed, and the terminal So (SO) and the SAFE signal turn OFF when E.SAF is displayed.

∗5 SA is displayed when the terminals S1 and S2 are identified as OFF due to the internal safety circuit failure.

∗6 If another fault occurs at the same time as E.SAF, the other fault can be displayed.

∗7 If another warning occurs at the same time as SA, the other warning can be displayed.

∗8 The ON/OFF state of the output signal is the one for the positive logic. The ON and OFF are reversed for the negative logic.

∗9 For the SAFE signal, refer to the following table and assign the function using Pr.190 to Pr.196 (output terminal function

selection).

∗10 The use of SAFE signal has not been certified for compliance with safety standards.

NOTE

• The response time from safety stop signal input to drive shutoff (safe state) is faster than 8ms.

• Hold the ON or OFF status for 2 ms or longer to input signal to terminal S1 or S2.

Signal input shorter than 2 ms is not recognized.

Input

power

Internal

safety

circuit

status

Input terminal∗1, ∗2 Output

terminal

Output

signal

∗8, ∗9, ∗10

Inverter

running status

Operation panel

indication

S1 S2 So (SO) SAFE E.SAF∗6 SA∗7

OFF ⎯⎯⎯OFF OFF Output shutoff

(Safe state) Not displayed Not displayed

NormalONONON

∗3 OFF Drive enabled Not displayed Not displayed

Normal ON OFF OFF∗4 OFF∗4 Output shutoff

(Safe state) Displayed Displayed

Normal OFF ON OFF∗4 OFF∗4 Output shutoff

(Safe state) Displayed Displayed

Normal OFF OFF ON∗3 ON∗3 Output shutoff

(Safe state) Not displayed Displayed

FaultONONOFFOFF

Output shutoff

(Safe state) Displayed Not

displayed∗5

Fault ON OFF OFF OFF Output shutoff

(Safe state) Displayed Displayed

Fault OFF ON OFF OFF Output shutoff

(Safe state) Displayed Displayed

Fault OFF OFF OFF OFF Output shutoff

(Safe state) Displayed Displayed

Output

signal

Pr.190 to Pr.196 settings

Positive logic Negative logic

SAFE 80 180

Fault Operation panel indication

Option fault E.OPT

Communication option fault E.OP1 to E.OP3

Parameter storage device fault E.PE

Retry count excess E.RET

Parameter storage device fault E.PE2

Operation panel power supply short circuit/

RS-485 terminals power supply short circuit E.CTE

24 VDC power fault E.P24

Safety circuit fault E.SAF

Overspeed occurrence E.OS

Speed deviation excess detection E.OSD

Signal loss detection E.ECT

Excessive position fault E.OD

Brake sequence fault E.MB1 to E.MB7

Encoder phase fault E.EP

CPU fault E.CPU

E.5 to E.7

Internal circuit fault E.13

Fault Operation panel indication

INSTALLATION AND WIRING 7

●Wiring and ferrule terminal specifications

Table 6 Wiring and Ferrule terminal specifications

∗1 Ferrule terminals and the tool are distributed by Phoenix Contact Co., Ltd.

●Shorting wire

The shorting wire are installed between terminals S1/S2 and PC and between terminals SIC and SD in the initial

status as shown in Figure 2.

Figure 2 Shorting wire

Before connecting the wires for the safety stop function to terminals S1, S2, and SIC, remove the shorting wires.

Cable gauge (mm2)Ferrule terminal model∗1 Crimping tool name∗1

0.3 AI 0,34-10TQ

CRIMPFOX 6

0.5 AI 0,5-10WH

0.75 AI 0,75-10GY

1 AI 1-10RD

1.25 / 1.5 AI1,5-10BK

0.75 (for two wires) AI TWIN 2 X 0,75-10GY

2 5 4 1 F/C

+24

SD SD S1 S2 PC A1 B1 C1 A2 B2 C2SICSo

SOC

510E 10 SE SE SU

RUN

IPF OL FU PC RL RM RH RT AU SD SD CSSTP

MRS RES

STF STR

JOG

8EXAMPLE OF SAFETY SYSTEM CONFIGURATION

3EXAMPLE OF SAFETY SYSTEM

CONFIGURATION

●FR-A800-LC configuration example(Using Safety relay module)

∗1 When the control logic is the sink logic, the common terminal is terminal SD.

Figure 3 Safety system example of the FR-A800-LC inverter

FR-A800-LC

So (SO)

R/L1

S/L2

T/L3

IGBTs

SOC

RESET

+24V

X0 X1

24G

XS0

XS1 Z10

Z00 Z20

Z11

Z01 Z21

24V

module

N-Q

STF

START

STOP

Emergency

stop button

+24V

Fuse

SIC

ASIC Gate

Driver

Gate

CPU

Logic

UVW

STOP

COM0

COM1

Internal

Safety

Circuit

24V

Driver

EXAMPLE OF SAFETY SYSTEM CONFIGURATION 9

●FR-A800-LC configuration example(Using Progurammable Controller Remote I/O Module)

Figure 4 Safety system example of the FR-A800-LC inverter

NOTE

• When starting up the system operation, press the RESET switch to reset the safety stop function first,

then turn ON the START switch to run the motor.

• In the above configuration, after resetting the of emergency stop button, the inverter will be in the safe-

state until the RESET switch is pressed.

Caution

To prevent restart of the inverter when the power is restored after a power failure, 3-wire connection

is recommended for the START/STOP control. In case of 2-wire connection and using latching type

switch to short between STF and SD/PC for starting, ensure the compliance with safety standards for

the restarting when the inverter power is restored after a power failure.

Mitsubishi Electric Programmable Controller

CC-Link IE Field Network

Remote I/O Module (With Safety Functions)

NZ2GFSS2-32D/ NZ2EXSS2-8TE



FR-A800-LC



So(SO)

R/L1



S/L2



T/L3



SOC

RESET











SIC

ASIC 







CPU



Logic



UVW

T1 X1 T0 X0

COM+

X2 Y1 Y0

COM-

IO24G

IO24V

NZ2GFSS2-32D

NZ2EXSS2-8TE

IO24G

IO24V

COM+

IGBTs

Gate

Drive

Gate

Drive

Emergency

stop button

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