Melco FR-D700 User Manual

INVERTER
FR-D700

Safety stop function instruction manual

CONTENTS

1. General description ............................................................................. 1

2. Installation and wiring ......................................................................... 2

3. Example of safety system configuration ........................................... 5

4. Test and checking failure .................................................................... 8

Compliance with the EU Machinery Directive – Functional Safety

DANGER

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 Co. cannot assume responsibility for any system to comply with safety directive.

ATTENTION

The information of this manual is merely a guide for proper installation.
Mitsubishi Electric Co. 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.

DANGER

To avoid an electric shock hazard, verify that the voltage on the bus capacitors has discharged before
performing any work on the drive. Measure the DC bus voltage at the P(+) and N(-) terminals or test points
(refer to your drive’s User Manual for locations and discharging time). The voltage must be zero.

DANGER

The safety stop function do not isolate electrically between drive and motor. To avoid an electric shock
hazard, disconnect/isolate power to the drive and verify to ensure that the voltage is zero before
performing any work on the motor (refer to your drive’s User Manual for discharging time).

ATTENTION

If you are using a FR-D740-EC or FR-D740-CHT with serial number shown below, safety function does not
work according to safety standard. In such case please contact your sales person.

<Europe model : suffixed with ‘-EC’>

D740-012 to 080–EC : Axxxxx, Bxxxxx, Cxxxxx, Dxxxxx, Exxxx and Fxxxxx
D740-120 to 160–EC : Axxxxx, Bxxxxx, Cxxxxx and Dxxxxx

<China model : suffixed with ‘–CHT’>

D740-0.4K to 3.7K–CHT : Axxxxx, Bxxxxx, Cxxxxx, Dxxxxx,Exxxx and Fxxxxx
D740-5.5K to 7.5K–CHT : Axxxxx, Bxxxxx, Cxxxxx and Dxxxxx

1. General description

Features

Mitsubishi FR-D700 safety stop function prevents a drive from supplying rotational energy to motors.
Dual safety channels ‘S1’ and ‘S2’ cut off the gate-drive power for IGBT to turn off.

S2

FR-D700

S1

SC

CPU

Gate

Driver

Gate

Driver

Fig.1 FR-D700 safety stop function diagram

DANGER

The safety stop function doesn’t isolate electrically between drive and motor. To avoid an electric shock
hazard, disconnect power to the drive and verify that the voltage is zero before performing any work on the
motor (refer to your drive’s User Manual for discharging time).

Directives

Mitsubishi FR-D700 safety stop function meets the following directives and categories.
EN954-1 Category 3
IEC60204-1 Stop category 0

DANGER

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 Co. cannot assume responsibility for any system to comply with safety directive.

Input power

IGBTs

M

1

2. Installation and wiring

ATTENTION

The following information is merely a guide for proper installation.
Mitsubishi Electric Co. 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.

ATTENTION

Ensure the safety relay unit and the D700 unit is mounted closely in enclosure meeting IP54 and all
interconnection wiring is short and protected against open and short circuit faults.
Refer EN/ISO13849-2.

Installation

Mitsubishi FR-D700 safety stop function should be used under following condition and environment.

Table.1 The condition and environment for using safety stop function

Item Condition

Operation -10Cto+50C (non-freezing) Temperature

range
Ambient humidity 90%RH maximum (non-condensing)
Vibration 5.9m/s2 or less
Altitude maximum 1000m above sea level
Atmosphere Indoors (without corrosive gas, flammable gas, dust and dirt etc.)
Over voltage category II or less
Pollution degree II or less
Mounting wall mounting / vertical orientation

In order to meet safety stop, an approved safety relay unit to EN954-1 safety category 3 or better shall be used in
conjunction with D700 as shown in example1,2.
In addition, all other components with in the safety stop loop shall be ‘safety approved’ types.

To avoid an electric shock hazard, insert the magnetic contactor (MC) between power source and drive.
Open the contact of MC and keep away from drive for discharging time (refer to your drive’s User Manual
for information) before performing any work on the drive.
And verify that the voltage on the bus capacitors has discharged before Measure the DC bus voltage at the
P(+) and N(-) terminals or test points (refer to your drive’s User Manual for locations). The voltage must be
zero.

To avoid systematic faults, a test even for faulty demands of the safety function has to be performed in order to check
the correct function of the monitor signal. This test shall be carried out at system installation, any software changes,
parameterization changes, and/or at least once per year.
Refer to ‘4. Test and checking failure’.

Storage -20Cto+65C

ATTENTION

DANGER

ATTENTION

2