GM 140
page 12
of 12
File: GM140_r0eng - October 2003 - Technical note: GM 140
How to order
Power supplies
:
GM140y.xxxj
, where:
y:
T
= 3 x 400
xxx:
the code used for a customized
unit;
j
(version code):
nul or
0
= standard version
1
= version 1
Please specify at time of order the value of the reference
signal required:
0-10 V
(standard)
Connector/plug set
:
p/n
44SET140
3 port isolator with dummy load:
several models availa-
ble:ask for quote and type.
Cable set:
p/n
44 1384 140
Includes
main line cables, signals cable.
Standard lenght is 3 mt; other
lengths available on request
Alter reserves the right to improve or modify this pro-
ducts, at any time, without any obligation to notify any
person or entity of such changes.
No part of this publication may be reproduced without
the express written consent of Alter.
All rights reserved.
Technical Assistance:
Alter s.r.l
42100 Reggio Emilia - ITALY
Tel: ++39 0522 553 820; fax ++39 0522 553 577
Alarms and warnings.
When the GM140 is turned on without alarms, the ALARM
CONTACT (Pin 23-24 CONN#3) contact is closed.
When the GM140 is switched off or an alarm is present, the
contact opens.
More, when an alarm occurs, the ALARM led turns on and
the GM140 stops microwaves.
To reset the GM140, clear the alarm and give a high value
to the RESET (Pin 4 CONN#3) signal (see page 5).
The UNDER VALUE warning is just a signal, not an alarm;
so it does not stop, neither open alarm contact. You don’t
need to reset it.
Type
Name
Description
Coded on Pin
Alarm
Voltage alarm
Voltage> 5000 Volt
No code
Short circuit
Short circuit on magnetron
No code
Driver
Internal failure
No code
Overcurrent
Current>130mA average
No code
Overduty
Duty cycle>20% (with hysteresis)
Pin 6 CONN#3
Failure Cooling MWG Too high temperature on magnetron
Pin 22 CONN#3
Warning
UNDER VALUE
Current< (Set Point - 2%)
Pin 6 CONN#3