Parker AC30 series User Manual

Ethernet 8-19
AC30 series Variable Speed Inverters
Simple Network Time Protocol (SNTP) Client
The SNTP Client is implemented in the AC30P and AC30D inverters.
The SNTP Client may be used to connect to a Network Time Protocol server on the World Wide Web. When configured, the SNTP Client
automatically updates PNO1186 “Time and Date” to the current UTC time, (Co-ordinated Universal Time).
SNTP Client Parameter Summary
Parameter Name No. Path Default Range Units Writable
SNTP Client Enable
178
8
Parameters::Base Comms::SNTP Client
FALSE
FALSE
TRUE
ALWAY
S
Enables the Simple Network Time Protocol Client
SNTP Remote Server
178
9
Parameters::Base Comms::SNTP Client
0.0.0.0
ALWAY
S
Defines the TCP/IP address of the NPT server to connect to.
If left at 0.0.0.0 the AC30 will use PNO 0928 “Gateway Address” as the address for the NTP server.
SNTP Status
138
6
Parameters::Base Comms::SNTP Client 0: IDLE
1: UPDATING
2: OK
3: BIND ERROR
4: CONNECT ERROR
5: TRANSMIT ERROR
6: RECEIVE ERROR
7: RECEIVE TIMEOUT
NEVER
The SNTP Client occasionally requests a time update from the server. If the update fails the reason is
shown here.
SNTP Client Operation
The SNTP client sends a request to the NTP server specified in the parameter “SNTP Remote Server”. On receiving a reply the client updates
the time in the AC30. The request rate varies between 64s and 1024s, (about 17 minutes). The actual period between requests is based on the
error between the local time and the server time at the instant of the request. The smaller the error, the longer the request period.
If an option if fitted that includes a Real Time Clock, the RTC is also updated by the SNTP Client if the RTC and SNTP time are more than 1s
apart.

Parker AC30 series Specifications

General

Control Modes	Closed-loop vector
Feedback	Encoder
Operating Temperature	0 to 40°C (32 to 104°F) standard, -20 to 50°C (-4 to 122°F) with derating
Protection	Overcurrent, Overvoltage, Undervoltage
Communication	RS485