Mitsubishi Electronics FR-A800, F800 User Manual
INVERTER
FR-A800/F800
Safety Stop Function Instruction Manual
CONTENTS
1. GENERAL DESCRIPTION ............................................ 2
2. INSTALLATION AND WIRING...................................... 3
3. EXAMPLE OF SAFETY SYSTEM CONFIGURATION .... 7
4. TEST AND CHECKING FAILURE ............................... 10
5. SAFETY PARAMETERS OF FR-A800/F800 ................ 11
Compliance with the EU Machinery Directive – Functional Safety
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 Co. cannot assume responsibility for any system to comply with
safety directive.
CAUTION
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.
WARNING
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.
WARNING
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).
1
1 GENERAL DESCRIPTION
Features
Mitsubishi FR-A800/F800 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.
RESET
Emergency
stop button
SO
SOC
PC
24VDC
SIC
SD
Safety relay module
/ Safety programmable controller
S2
S1
Fuse
+24V
CPU
Logic
FR-A800/F800
Gate
ASIC
Driver
Gate
Driver
G G
R/L1 S/L2 T/L3
IGBTs
U
V
M
W
Fig.1 FR-A800/F800 safety stop function diagram
WARNING
Disconnecting the power to the gate driver by the safety stop function does not isolate electrically
between drive and motor. To avoid an electric shock hazard, disconnect power to the drive and verify
that the main circuit capacitor voltage is zero (across P and N terminals) before performing any work
on the motor (refer to your drive’s User Manual for discharging time).
Standards
Mitsubishi FR-A800/F800 safety stop function meets the following directives and categories.
ISO13849-1:2008 Category 3/PLd
IEC62061:2005 / IEC61800-5-2:2007 / IEC61508 SIL2
IEC60204-1:2010 / IEC61800-5-2:2007 Stop category 0
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 Co. cannot assume responsibility for any system to comply with
safety directive.
2
GENERAL DESCRIPTION
2 INSTALLATION AND WIRING
CAUTION
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.
CAUTION
Ensure the safety relay unit and the FR-A800/F800 unit is mounted closely in enclosure meeting IP54
and all interconnection wiring is short and protected against open and short circuit faults. Refer ISO/
IEC13849-2.
Installation
Mitsubishi FR-A800/F800 safety stop function should be used under following condition and environment.
Table.1 The condition and environment for using safety stop function
Item Condition
Surrounding air
temperature
Storage temperature -20ºC to +65ºC
Ambient humidity
Vibration
Altitude Maximum 2500 above sea level
Atmosphere Indoors (free from corrosive gas, flammable gas, oil mist, dust and dirt)
Over voltage category III or less
Pollution degree II or less
Mounting Wall mounting / vertical orientation
LD, ND, HD
SLD -10ºC to +40ºC (non-freezing)
-10ºC to +50ºC (non-freezing)
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)
2
5.9m/s
or less at 10 to 55Hz (directions of X, Y, Z axes)
The ND and HD ratings can be selected only for the FR-A800.
Temperature applicable for a short time, e.g. in transit.
For the installation at an altitude above 1,000 m (3280.80 feet) up to 2,500 m (8202 feet), derate the rated current 3% per 500
m (1640.40 feet).
INSTALLATION AND WIRING
3
CAUTION
In order to meet safety stop, an approved safety relay unit to ISO13849-1 safety category 3 or better
shall be used in conjunction with FR-A800/F800 as shown in example. In addition, all other
components with in the safety stop loop shall be ‘safety approved’ types.
WARNING
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 Measuring 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.
CAUTION
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’.
●Wiring
The safety related terminals are described in Table.2 and Table.3
Table.2 The safety related terminals
Term i nal
symbol
For input of safety stop channel 1.
S1
S2
SIC Common terminal for S1 terminal and S2 terminal.
SO
SOC Common terminal for SO terminal.
S1-SIC is
OFF: In safety stop mode.
ON: Non safety stop mode.
For input of safety stop channel 2.
S2-SIC is
OFF: In safety stop mode.
ON: Non safety stop mode.
As output for failure detection and alarm. SO terminal type is
‘Open collector output’.
SO-SOC is
OFF: Detect failure or alarm.
ON: No failure detected.
Note: This terminal cannot be used to output safety outputs in a
safety system. This terminal can be used for alarm or to
prevent restart only, no other safety function.
Specifications for conforming safety standards.
ON: The transistor is conducted. OFF: The transistor is not conducted.
Description Rating
Input resistance: 4.7kΩ
Input current : 4 to 6 mADC
(In case of 24VDC input)
Load: 24VDC/0.1A max.
Voltage drop: 3.4V max.
(In case of ‘ON’ state)
4
INSTALLATION AND WIRING
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