Trumeter 7932 Manual Del Usuario página 4

Connections
WARNING: This counter must not be wired the same as
the 7931.
Pin Description Range
1 Auxilliary DC Supply -ve 0V - See pin 2, below
2 Auxilliary DC Supply +ve Power Supply (see pages 37 & 38)
The counter can be powered by AC mains, in which case
pins 1 and 2 provide an Auxilliary supply (+12V DC +20%
-10%, 75mA max recommended) which can be used to
power sensors if required. Alternatively, the counter can
be powered by an external DC source (12-24V DC ±10%,
100mA), connected to pins 1 and 2.
3 4/5 Common See Input Polarity, page 5
Opto-isolated, 12-240 V ±10% DC or 50/60Hz AC
4 External Reset Input
(Input R) See Specification, page 2
Opto-isolated, 12-240 V ±10% DC or 50/60Hz AC
5 Low Speed
See Specification, page 2
Counter/Timer Input
(Input CT) This input can be used in Counter or Timer Mode
Neutral
6
94 to 240VAC ±10% 50/60 Hz
Live
7
8
Not used ---------
9
Isolated relay contacts
10 P1 Normally Open contact
50/60Hz 300V AC max, 220V DC max
11 P1 Common contact
12 P1 Normally Closed contact See Specification, page 2
13 14/15 Common See Input Polarity, page 5
14 Keyboard Disable Input
5-30 VDC See Specification, page 2
(Input K)
This input can be used to disable the front panel buttons,
but only if configured by the Inhibit option.
See Programming, page 6
15 High Speed Counter Input 5-30 VDC See Specification, page 2
(Input CH)
This input can be used in Counter Mode only
High Speed Inputs
These are high speed inputs (10kHz max), suitable only for electronic signal
sources, eg. transistors, proximity switches, encoders.
Low Speed Inputs
These are low speed inputs (30Hz max), suitable for contact closure sources,
eg. microswitches, relays, pushbuttons. Any contact noise is removed by
filtering. They can also be used for electronic signal sources.
Cables
Maximum wire size the connector can accept is:
2.5mm 2 cross sectional area; 1.8mm diameter. (equivalent 13 AWG solid wire)
Any signal cables connected to this device must not exceed 30 metres in length.
If signal cables are installed that are routed outside the building, it will be
necessary to install additional surge protection devices.
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