MT-FFH-EN / 17.09.
2021
Rev. 3
Strawinskylaan 1105 EN
1077 XX Amsterdam, The Netherlands instruction manual
FFH
POSITION LIMIT SWITCH
Before use, read this booklet carefully to
acquaint yourself with the features of the
product. This booklet is an integral part of
the product and therefore must be kept until
the product is dismissed.
Giovenzana International B.V. reserves the
right to change the features and data shown
in this document at any time and without
notice. This document cannot therefore be
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 considered a contract with third parties.
General technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Cam switch technical data . . . . . . . . . . . . . . . . . . . . . . . . . 2 Position limit switches FFH are designed and
Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 manufactured according to IEC international
Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 standard and EN European regulations.
Overall dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Any improper installation or any tampering
WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 of the device may cause serious personnel
injury or property damage, therefore, the
ROD POSITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 installation and maintenance must be
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 performed by specialized and authorized
Installation dimensions and rods calibration . . . . . . . . . . 7 personnel.
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 The use of this device is not allowed in
VERSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 environment with a potentially explosive
Cam switch operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 atmosphere or in presence of corrosive
substances and in salt spray.
The FFH limit switches rotary gear position
are used to control several handling systems:
• Bridge cranes: the limit switch controls the
operating system, for example a PLC, and
allows the bridge crane to slow down or
stop.
• Hoists: the limit switch is used to stop the
hoist whenever it reaches a limit position.
They are suitable for use in industrial
environment with machinery monitoring and
protection purpose.
SPECIFICATIONS
General technical data
Standards IEC/EN 60947/3
Case self extinguishing housing V0 UL94
Protection class IP67 double insulation
IEC/EN 60529
Cable entry M16 / M20
Operating temperature -25 ... +55°C
Storage temperature -30 ... +70°C
Notes - 200/300 mm adjustable aluminium rods with “0” indicator
- reinforced mechanical stop
Cam switch technical data
Product ID P016 Giovenzana line
Rated enclosed thermal current Ithe 16 A
Rated insulation voltage Ui 690 V
Connections terminals gauge EN60947-1 A3
terminals screw M3.5
tightening torque EN60947-1 0.8 N×m / 7.2 lb×in
UL508 7.5 lb×in / 0.85 N×m
Connectable section flexible cable 1 × 0.75 ... 4 mm² or 2 × 0.75 ... 2.5 mm²
18 ... 10 AWG
rigid cable 1 × 0.75 ... 4 mm² or 2 × 0.75 ... 2.5 mm²
18 ... 10 AWG
Contacts double breaking
Certifications
Limit switches FFH series are in conformity with the following and therefore follow the provision of the
standards or other normative documents: Directives:
EN 60947-1 2007/A1 : 2011/A2 : 2014 2014/35/UE
EN 60947-3 2009/A1 : 2012/A2 : 2015 2011/65/UE
EN 60204-1 2006/A1 : 2009 2015/863/UE
EN 60529 1991/A1 : 2000/A2 : 2013
EN 50581 2012
IEC 63000 2016
Markings
GIOVENZANA INTERNATIONAL B.V. - MT-FFH-EN / 17.09.2021 - Rev. 3 2
Main components
10
9
6
1
4
3
5
2
12
11 13
1 Cover 8 Shaft red label for “0 position”
2 Base 9 Shaft fixing disk
3 Cover fixing screws M4×30 10 Disk fixing screws 3E9×13
4 Holes for installation screws 11 “0 position” marking
5 M20 knockout 12 Head red label for “0 position”
6 M16 knockout 13 Cam switch
7 Shaft 6×6 mm
GIOVENZANA INTERNATIONAL B.V. - MT-FFH-EN / 17.09.2021 - Rev. 3 3
Overall dimensions
200 / 300 * 84
75 78.6
48 72.9
54
200 / 300 *
75
63
6.5
4.5
M20 M16
17
17
Dimensions in mm / illustrations NOT in scale * The length of the rods varies according to the model
GIOVENZANA INTERNATIONAL B.V. - MT-FFH-EN / 17.09.2021 - Rev. 3 4
WIRING
1 Unscrew the 4 screws and
open the limit switch body. 5 Insert the cable (a) in the limit switch base (b)
passing it also through the lock nut (c).
5a 5b 5c
6b
2 Depending on the need, break one or both the knock-
outs (M16 / M20) with a suitable object, such as a
6 Fix the cable
gland (a) and
then tighten the
screwdriver.
lock nut (b).
6a
2
7 Wire (a) the cam switch according to the
diagram in paragraph “Cam switch operation”
p.8. After wiring, tighten the sealing nut (b).
3 Loosen the sealing nut (a) of a cable gland (a-b-c)
matching the choosen knock-out (d).
7a
7b
3c
3d
3b TIGHTENING TORQUE (7a)
3a 0.8 N×m / 7.2 lb×in (EN60947-1)
7.5 lb×in / 0.85 N×m (UL508)
ATTENTION
4
Carry out the wiring so that the cables do not get in
Insert a suitable cable (a) into the cable gland (b).
the way when closing the cover.
8 Refit the cover on the base
with the 4 screws.
4a TIGHTENING TORQUE
1.2 - 1.4 N×m
4b
10.6 - 12.4 lb×in
GIOVENZANA INTERNATIONAL B.V. - MT-FFH-EN / 17.09.2021 - Rev. 3 5
ROD POSITIONING
1 1 Make sure that the position of the rotating bush
is on “0” referring to the sticker positioned on the
bush itself. After the correct positioning remove the
reference sticker.
ATTENTION
DO NOT REMOVE THE SHAFT FIXING DISK FOR ANY REASON.
IN CASE OF ACCIDENTAL REMOVAL, DO NOT TAMPER THE CENTRAL
SCREW UNDER ANY CASE AND FOR ANY REASON. ANY TAMPERING
WILL RESULT IN IRREPARABLE DAMAGE TO THE LIMIT SWITCH.
2a
2 Loosen without removing the 4 screws (a) of the
fixing disk. Insert the rods (b) matching the one with
the “0” indicator with the “>0<” on the cover.
2b
3 Tighten the 4 screws of the fixing disk.
TIGHTENING TORQUE
1.2 - 1.4 N×m / 10.6 - 12.4 lb×in
GIOVENZANA INTERNATIONAL B.V. - MT-FFH-EN / 17.09.2021 - Rev. 3 6
INSTALLATION
Installation dimensions and rods calibration
200 / 300 *
75 24.55
48
(3)
(2)
200 / 300 *
75
63
(1)
6.5
4.5
TIGHTENING TORQUE
1.2 ... 1.4 N×m / 10.6 ... 12.4 lb×in
1 Fix the limit switch with 4 suitable screws (1) (not
supplied) into the service position, considering the
drilling pattern and the overall dimensions shown in
2 After fixing the limit switch it is possible to calibrate it
by loosening the 4 screws of the disk (2) and sliding
the rods (3).
the picture.
ATTENTION ATTENTION
Please note that in this example the “0” has been The range of adjustmet follows the rules on the
positioned upwards. paragraph “Operation” p.7.
Dimensions in mm / illustrations NOT in scale * The length of the rods varies according to the model
Operation
Total length L 300 mm 200 mm
Arm length B 150 mm 100 mm
B
Maximum operation distance P 101 mm 67 mm
P
ATTENTION
Do not adjust the arm length (B) with values not allowed. A not allowed arm
length could compromise the operation of the limit switch and therefore cause
L
serious damages to things and people during use.
GIOVENZANA INTERNATIONAL B.V. - MT-FFH-EN / 17.09.2021 - Rev. 3 7
VERSIONS
Cam switch operation
FFH001 0
3-4
• Single speed - + 1
• 3 positions 90° 90°
1-2
• With mechanical interlock -90° 0 +90°
FFH002 0
7-8
• Single speed - + 2
• 3 positions 90° 90°
5-6
• With mechanical interlock 3-4
1
1-2
-90° 0 +90°
FFH003 0
3-4
• Single speed 1
• 4 positions rotary 270° 90°
1-2
• Without mechanical interlock 0 90° 180° 270°
180°
FFH004 0
• Single speed 2
• 4 positions rotary 270° 90°
5-6
• Without mechanical interlock
180°
1
1-2
0 90° 180° 270°
FFH005 0
• Single speed 2
• 4 positions rotary 270° 90°
5-6
• Without mechanical interlock
180°
1
1-2
0 90° 180° 270°
FFH006 0
7-8
• Double speed - + 2
• 4 positions 90° 90°
5-6
• With mechanical interlock - + 3-4
180°
1
1-2
-180° -90° 0 +90° +180°
CUSTOM VERSIONS AVAILABLE ON REQUEST
GIOVENZANA INTERNATIONAL B.V. - MT-FFH-EN / 17.09.2021 - Rev. 3 8
