Pizzato Elettrica Srl
via Torino, 1
36063 MAROSTICA (VI)
ITALY
e-mail: [email protected]
web site: www.pizzato.com
Phone: +39.0424.470.930
ZE FOG41A19-EU
4/12
1 INFORMATION ON THIS DOCUMENT
1.1 Function
The present operating instructions provide information on installation, connection and
safe use for the following articles:
CS ME-20••••
.
1.2 Target audience
The operations described in these operating instructions must be carried out by quali-
fied personnel only, who are fully capable of understanding them, and with the techni-
cal qualifications required for operating the machines and plants in which the safety
devices are to be installed.
1.3 Application field
These instructions apply exclusively to the products listed in paragraph Function, and
their accessories.
1.4 Original instructions
The Italian language version is the original set of instructions for the device. Versions
provided in other languages are translations of the original instructions.
2 SYMBOLS USED
This symbol indicates any relevant additional information
Attention: Any failure to observe this warning note can cause damage or mal-
function, including possible loss of the safety function.
3 DESCRIPTION
3.1 Device description
The safety device described in this manual is defined according to the Machinery
Directive 2006/42/EC as logic component for safety functions.
The contact expansion modules to which these usage instructions apply are devices
specifically designed and manufactured for use on industrial machines. Upon opening
of at least one channel, the safety function ensures that the safety relay must open its
output contacts within the defined release time.
3.2 Device functions
This device is suitable for the following applications: as contact expansion mod-
ule in safety circuits up to category 4 acc. to EN ISO 13849-1, up to SIL 3 acc. to
EN 62061 and up to PL e acc. to EN ISO 13849-1 (the respective achievable category,
SIL and PL are dependent on the upstream safety module).
- Possibility for 1- or 2-channel control.
- Connection of input channels of opposite potentials.
- Output contacts: 4 NO safety contacts, 2 NC auxiliary contacts, 1 NC feedback
contact.
- Versions with 4 different permanently set delay times: 0.5 - 1 - 2 - 3 s.
- LED indicators for switching state of the channels 1 and 2.
- Screw terminals or plug-in terminals with screw connections or spring terminals (de-
pending on the model).
- Snap-mounting on DIN rails.
3.3 Intended use of the device
- The device described in these operating instructions is designed to be applied on
industrial machines.
- The direct sale of this device to the public is prohibited. Installation and use must be
carried out by qualified personnel only.
- The use of the device for purposes other than those specified in these operating
instructions is prohibited.
- Any use other than as expressly specified in these operating instructions shall be
considered unintended by the manufacturer.
- Also considered unintended use:
a) using the device after having made structural, technical, or electrical modifications
to it;
b) using the product in a field of application other than as described in paragraph
TEChNICAL DATA.
4 OPERATION
4.1 Operating diagram
CS ME20
••••-TF•
A1/A2
Y1/Y2
17/18, 27/28,
37/38, 47/48
t
A
t
R
55/56, 65/66
Legend:
t
A
:
Response time
t
R
:
Release time in absence of power supply (see paragraph TEChNICAL DATA)
4.2 Wiring diagrams
1-channel control
13
14
A2
Y1
Y2
A1
F
L / +
N / -
2-channel control
13
14
A2
Y1
Y2
A1
23
24
F
L / +
N / -
5 INTERNAL WIRING DIAGRAM
K1
K2
A1
17
27
65
A2
18
28
66
37
47
38
48
55
56
C2
C1
LED
CH1
LED
CH2
Y1
Y2
L / +
N / -
:
Insulated against U
imp
6 FAULTS
LED state
Possible fault
Recommended action
CH1
CH2
- No power supply to the
module.
- Wrong wiring.
- Power supply conductor/s cut.
- External fuse broken.
- Short circuit between chan-
nels.
- Failure in base module.
- Internal expansion module
fault.
Check the wiring, the fuse and
the function of the base module.
If the fault persists, replace the
module.
CS ME-20
expansion module
Manual start
Automatic start
Start input,
reset and/or feedback
Base module
CS ME-20
expansion module
Manual start
Automatic start
Start input, reset
and/or feedback
Base module
