CAPÍTULO 2: DIAGNÓSTICO DEL ESTADO ACTUAL DEL PROBLEMA Y SOLUCIÓN
2.7 C ONCLUSIONES DEL CAPÍTULO
Matrix input signal
Yn1 + 4
Basic module Slot MPG Xmmpg + 1 (for 2nd MPG)
Xmmpg + 2 (for 3rd MPG)
Xm1, Xmmpg, and Yn1 indicate the start address at allocation.
Basically, for an I/O module for operator’s panel, allocate 12-byte DI addresses to slot 1 and 8-byte DO addresses to slot 1.
An I/O module for operator’s panel has an interface for three manual pulse generators. To use manual pulse generators, allocate addresses to slot MPG. With this setting, addresses can be allocated to the three manual pulse generators at a time (addresses cannot be allocated individually to manual pulse generators).
Do not use the addresses with the ladder because the CNC processes the manual pulse generator signals directly.
ON/OFF of the power supply (DO common) for DO signals (output signals)
For ON/OFF of the power supply pin (DOCOM) for the DO signals (output signals), see Subsection 8.2.4.4.
Parallel DO (output signal) connection
For parallel connections of DO signals (output signals), see Subsection 8.2.4.4.
DO (output signal) alarm detection
The DO driver of an I/O module for operator’s panel is capable of detecting an overcurrent and measuring its own temperature. If an accident, such as connecting the cable to ground, causes an abnormal increase in the load current or in the driver temperature, a protection circuit, which is provided for each DO driver, is activated which keeps the DO signal for the relevant 1 byte in the OFF state until the cause of the problem is eliminated. Even if this occurs, the CNC and I/O module continue operating without entering the alarm status, but the PMC is notified of the location of the error detected by the DO driver. This information can be checked on the PMC status screen or alarm processing can be performed in advance using a ladder to help error check and recovery.
A DO error such as a ground fault is detected for each byte. This DO error is transferred to the PMC system relay area as a status alarm. The following table lists system relay area information and corresponding DO data related to a status alarm. When alarm data bit 0 is set to “1”, the DO driver indicated by the slot number and byte offset detects an error as listed in the table below. Also see Subsection 7.3.3, “Status Alarm”.
Information output to the system relay area and corresponding location where an error occurred
Information output to the system relay area
Output values of “Group number”, “PMC path”, and “Y address” depends on unit connection and I/O address assignment.
Yn indicates the start address at allocation.
Description of “Alarm data” in the system relay area
Alarm data
#7 #6 #5 #4 #3 #2 #1 #0 0 0 0 0 0 0 0 １
Note : DO alarm is detected not for each bit but for each byte in this module. It cannot be detected in which bit a DO alarm occurs. “01H” is output to “Alarm data” in the system relay area whichever bit a DO alarm occurs.
CAUTION
1 The output protection function is not for external equipment but for internal device of the module.
2 The output protection function can’t protect the internal device in any case. If the output protection function is activated, remove the cause immediately. If the output exceed the absolute maximum rating, the output protection function may not operate normally or the internal device may break before the output
protection function operates.
3 If the over current is continued with a condition that the output protection function
can’t operate normally, the internal device might emit smoke or take fire.
8.3.11 Connection of the Grounding Terminal of the Module
Connect the 0V line in the basic module to the cabinet’s metal plate that is connected to ground or signal ground bar nearby via the protective ground terminal. About Multipoint grounding or Single-point grounding, refer to Item 3.4.1
In case of Multipoint grounding Connect to the cabinet metal plate which is connected to ground
In case of Single-point grounding Connect to the signal ground bar Protective ground terminal
(Fixed by M3 screw)
Cable(2mm2 or thicker)
8.4 CONNECTION OF I/O MODULE FOR OPERATOR'S PANEL AND I/O MODULE FOR POWER MAGNETICS CABINET
The difference between the I/O module for operator's panel and the I/O module for power magnetics cabinet lies in whether an interface to a manual pulse generator is provided. The power magnetics cabinet does not provide an interface to a manual pulse generator.
8.4.1 Overall Connection Diagram
CNC
I/O Link i JD51A
I/O UNIT JD1B
JD1B JD1A
CE56
Manual pulse generator Manual pulse generator Manual pulse generator
Machine operator’s panel
+24V power supply
+24V power supply
JA3
CPD1(IN)
CPD1(OUT) CE57
NOTE
The following screw type connectors, newly incorporated into the main board of control unit, cannot be used to connect the I/O Link i or manual pulse generator.
Connectors that cannot be used on the cable side
Specification Manufacturer
Connector case FI-20-CV7 Hirose Electric Co., Ltd.
Connector case and connector FI30-20S-CV7 Hirose Electric Co., Ltd.
8.4.2 Power Connection
Provide the CPD1 (IN) connector, shown below, with the power necessary for the printed circuit board operation and that for DI operation. To facilitate power division, the power is output to CPD1 (OUT) exactly as it is input from CPD1 (IN). When power division is required, use CPD1 (OUT).
Up to 1.0 A can be supplied by branching.
01 +24V 02 0V 03 CPD1(IN)
24 V power supply
01 +24V 02 0V 03 CPD1(OUT)
24 V power supply
Recommended cable-side connector:
A02B-0120-K324 (including the following connector housing and contacts) (Housing: Tyco Electronics 1-178288-3)
(Contacts: Tyco Electronics 1-175218-5)
NOTE