Lake Shore Model 642 Electromagnet Power Supply User’s Manual
Introduction
1-5
Specifications (Continued)
Interface
IEEE-488.2 interface
Features
SH1, AH1, T5, L4, SR1, RL1, PP0, DC1, DT0, C0, E1
Reading rate
To 10 rdg/s
Software support
National Instruments LabVIEW
™
driver (consult Lake Shore for availability)
Serial interface
Electrical format
RS-232C
Baud rates
9600, 19200, 38400, 57600
Reading rate
To 10 rdg/s
Connector
9-pin D-sub (DTE)
Output current monitor
Sensitivity
7 V/70 A
Accuracy
±
1% of full scale
Noise
1 mV RMS
Source impedance
20
Ω
Connector Shared
15-pin
D-sub
Output voltage monitor
Sensitivity
3.5 V/35 V
Accuracy
1% of full scale
Noise
1 mV RMS
Source impedance
20
Ω
Connector Shared
15-pin
D-sub
Power supply cooling water
Remote enable input
TTL low or contact closure to enable output; jumper required if unused
Valve power output
24 VAC at 1 A maximum, automatic or manual control
Connector Shared
4-pin
detachable terminal block
Flow switch and water valve optional
Magnet cooling water
Remote enable input
TTL low or contact closure to enable output; jumper required if unused
Valve power output
24 VAC at 1 A maximum, automatic or manual control
Connector Shared
4-pin
detachable terminal block
Flow switch, temperature switch, and water valve not included
Auxiliary
Emergency stop
Requires 1 A, 24 VAC normally closed (NC) contact to enable power-up; jumper required if
unused
Fault output
Relay with normally open (NO) or normally closed (NC) contact, 30 VDC at 1 A
Remote enable
TTL low or contact closure to enable output, jumper required if unused
Connector Shared
8-pin
detachable terminal block
Emergency stop and enable switches not included